how to set Openfiledialog to take directory

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  - 1
    - ColorDepth Would there be a problem if I set the ColorDepth of an image list to 24 or 32 bits? It seems to be working OK in my computer but I am wondering if other people will have a problem. I am going to assume that you would have to have a very old computer to not support these color depths, is my assumption correct? Thank you. Tag: how to set Openfiledialog to take directory Tag: 91133
  - 2
    - All capitals by Key Press Hi I am trying to build a windows forms control which derieves from TextBox. The added functionality that i want is that I want every character that appears on the TextBox should be in Capitals. For this i have created a Class iTextBox and Derieved from TextBox and have overriden the OnKeyPress Method Here is the code :- protected override void OnKeyPress(KeyPressEventArgs e) { if(Char.IsLetter(e.KeyChar)) { e = new KeyPressEventArgs(Char.ToUpper(e.KeyChar)); } base.OnKeyPress (e); } But when i test the class it the method runs but the characted is not converted to Upper case. Please help and advice. Manu Singhal Tag: how to set Openfiledialog to take directory Tag: 91132
  - 3
    - Menu suggestion normally with a menu i use a simple switch statement. i'm thinking this is not a very good way of doing it. does anyone have any suggestions on a better way -- Message posted via http://www.dotnetmonster.com Tag: how to set Openfiledialog to take directory Tag: 91130
  - 4
    - Slow WinForm 1st launch I've got a simple winform app written in C# that takes almost 5 seconds to start after a reboot. The from was previously written in VB 6 and took less then 1 second to start. I've tried NGEN but it didn't seem to make a difference. Has anyone been able to solve the slow first launch problem? Thanks Tag: how to set Openfiledialog to take directory Tag: 91125
  - 5
    - Controls in a panel are shown in incorrect order Hi, I've got a graphical application where some child controls are rendered inside a panel. This controls are user drawn and are transparent. The transparency works OK, I've been using Bob Powell tricks (http://www.bobpowell.net/transcontrols.htm). However, there's a big problem: child controls are drawn BACKWARDS its order. For example, if I add two controls and then I execute BringToFront() in one of them, it draws behind the other, but when I click, the mouse events are fired on it (so it is really in front). Below is the most important code from the control, the panel where controls are added is just a simple Panel with a transparent background, I hope if someone could help me. Thanks in advance. === THE CODE === public partial class DrawViewer : UserControl { public DrawViewer() { InitializeComponent(); Initialize(); this.MouseDown += new MouseEventHandler(DrawViewer_MouseDown); this.MouseUp += new MouseEventHandler(DrawViewer_MouseUp); this.MouseMove += new MouseEventHandler(DrawViewer_MouseMove); } #region This allows to drag the control bool dragging = false; int mousex, mousey; void DrawViewer_MouseUp(object sender, MouseEventArgs e) { if (dragging) { dragging = false; mousex = mousey = 0; } } void DrawViewer_MouseMove(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { if (dragging) { Point MPosition = (ScrollableControl)this.Parent).PointToClient(MousePosition); MPosition.Offset(mousex, mousey); this.Location = MPosition; this.InvalidateEx(); } } else dragging = false; } void DrawViewer_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { dragging = true; Point MPosition = ((ScrollableControl)this.Parent).PointToClient(MousePosition); mousex = -(MPosition.X - Location.X); mousey = -(MPosition.Y - Location.Y); } } #endregion protected override OnPaint (PaintEventArgs e) { // This just paints } #region This is for supporting transparency protected override CreateParams CreateParams { get { CreateParams cp = base.CreateParams; cp.ExStyle |= 0x20; return cp; } } protected override void OnPaintBackground(PaintEventArgs pevent) { // Nothing } protected override void OnMove(EventArgs e) { InvalidateEx(); } protected override void OnResize(EventArgs e) { InvalidateEx(); } public void InvalidateEx() { try { if (Parent != null) return; Rectangle rc = new Rectangle(this.Location, this.Size); Parent.Invalidate(rc, true); } catch { } } public void Initialize() { SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.SupportsTransparentBackColor, true); // More internal initialization } public override void Refresh() { base.Refresh(); InvalidateEx(); } #endregion Tag: how to set Openfiledialog to take directory Tag: 91124
  - 6
    - MDI Toolbar and Menu merges How does one go about merging the menus and toolbars of a child form into the menus and toolbars of the parent MDI form? I am using vb.net 2003. Any help would be appreciated. Thanks. Tag: how to set Openfiledialog to take directory Tag: 91121
  - 7
    - Datagrid - Windows Forms - Can't see what is in the grid The grid has rows but you can't see them. You see the grid but all rows are completly blue but when you click on a column in the row you see the text that is in the row. I sprinkled datagrid.refresh and application.doevents around but it did not help. It seems like it's memory or video card related. An intersting note is that when this happens when I am on my Dell workstation at the office but when I vpn to that Dell workstation from home I do not get the error. Tag: how to set Openfiledialog to take directory Tag: 91118
  - 8
    - datagridTableStyle question I have a datagridComboBoxColumn in my datagrid. I was wondering if there is any way to generate an event for the the Column that would trigger a routine that in turn populates couple of TextBoxColumns in the same datagrid. The Datagrid uses DataGridTableStyle for it's mapping and customization. Tag: how to set Openfiledialog to take directory Tag: 91114
  - 9
    - Embed PDF in Winforms Good Day, Gentlemen: I've been tasked with creating a screen that allows users to double-click items from list of filenames. Each filename in the list corresponds to a PDF file. On double-click, the corresponding PDF file should be displayed. The catch is that the PDF viewer needs to be embedded *inside* my WinForms app, as opposed to being externally launched. The user needs to be able to scroll through the PDF and optionally print it. Does anyone know how to do this? I don't mind purchasing a 3rd party component, so long as it's a fully managed .NET component. Help a brother out, Jules Tag: how to set Openfiledialog to take directory Tag: 91111
  - 10
    - Access 2002 like Combobox in .NET 2003 We are trying to rebuild a current Access 2002 (XP) mdb program to VB.NET with a SQL database - we are having problems with a suitable combobox. There are many threads discussing multiple column comboboxes in .NET. We are having success with the multiple columns similar to the combobox from Access 2002 (XP). Our biggest problem is speed. In a form in Access 2002, our combobox is able to load data in a table in separate Access database file in a fraction of a second. This table is already sorted in the proper order, and has 65,000 records (almost the limit of items in the Access combobox). For this speed test, the table consists of one field. The records are just integers counting from 1 to 65,000. The Access combobox is filled with data by setting the combobox.RowSource property to equal a SQL Select Statement: SELECT field1 FROM table1 IN 'c:\pathto\database.mde" We tried to do a similar test using the VB.NET combobox with Microsoft SQL Desktop Edition 2000. Same table as above. We tried several approaches including binding to a DataSet, binding to an array (filled the array with DataReader), and using the combobox.Items.AddRange(array). The best result we could get with the 65,000 records was to use a DataReader to fill an Array, then use the combobox.item.addrange - but this was approx. 7 seconds - still slow compared to Access, and too slow for our purpose. This 7 second was during the AddRange step, not during the looping through the DataReader to fill the Array. Filling the Array was very quick. All of our tests indicate the the slow down is getting the information into the combobox, not get the data from the database. Is there a Microsoft suggestion get a large list of data into the combobox quickly the way Access could do it? Is there a third party combobox that can work in VB.NET and load the data quickly, preferable with multiple columns? Any other suggestions? VB.NET solutions are preferable, but we do have VS.NET Pro 2003, so we can support other languages as well. Thank you for all that took the time to read this long message. PS - it was suggested that 65,000 records are too many to be showing to a user. The purpose of this list to allow the patient to select a client/patient from a large and growing list in a medical lab setting. Medical labs are always receiving new patients, and usually only see a patients once or twice. They do need to keep the patient active in case the patient returns. Tag: how to set Openfiledialog to take directory Tag: 91106
  - 11
    - Exception in Timer.Tick/JIT debugging Hi, I posted the following in the m.p.vsnet.debugging group, but it turned out to be a Framework (Timer) problem: <quote> I'm using VB 2003 (VS.Net 2003 IDE) and a WindowsForms project. How can I get *completely* rid of the "Jit-Debugging" dialog box? The one containing the 3 buttons "Details", "continue", "quit" (or "close"; I don't know, I have the German version). I do *not* want to see the dialog when debugging in the IDE. Instead, I'd like the IDE to handle the exception and stop at the line throwing the error. - In the options, Jit-Debugging is enabled for all three items (CLR, native, script). - In machine.config, JitDebugging is enabled. - In menu Debug -> exceptions: Option "CLR exceptions" is set to "jump into debugger" if the exception is not handled. </quote> It's easy to reproduce: 1. Add a Timer (System.Windows.Forms.Timer) to a new WindowsApplication. 2. Set the timer's Enabled property = True. 3. In the timer's tick event, write: Throw New Exception 4. Start Armin Tag: how to set Openfiledialog to take directory Tag: 91105
  - 12
    - Closing an application before it's opened. I've written a C# Windows Forms application. Now I've decided that it needs to check that the user is a member of certain groups as it's opening and close if they're not. A bit of research suggests that I won't be able to close the application before it's finished loading. this.Close() doesn't work in these situations. What's the recognized way of achieving this? I like to do things properly. If I was starting from scratch, would I create the project as a Console Project and use something like: Form1 form1 = new Form1(); form1.ShowDialog(); to display the form? (And find some way to hide the Console window.) Or do I create it as a Windows Application and find run the group membership checks as part of the first (somehow hidden) window and then call the main window with code similar to that above? Simon Tag: how to set Openfiledialog to take directory Tag: 91103
  - 13
    - Mapping from DataGridView to the actual DataRow Hi, I have a DataGridRow which i fill with data from a DataAdapter. Now when the user selects a row in the grid, how do I find out which row datarow in the dataset is "selected"? I got this to work in asp.net 1.1 fairly easy, but how do i do it in winforms 2.0? I know I can just use SelectedRows[0].Cells[0].Value to get the value of the first cell in the selected row, but this is not what I want. What I basically want, is to be able to know which DataRow each DataGridViewRow represents. -- Thomas Due Posted with XanaNews version 1.17.5.9 "If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle." -- Sun-Tzu Tag: how to set Openfiledialog to take directory Tag: 91102
  - 14
    - Bind enabled to listview Can I bind the enabled property on a button to the SelectedItems.Count of a listview (0 or > 0). I have 2 listviews and I want the user to move data between them by clicking a direction button. I would like to bind the enabled property of these buttons to the SelectedItems.Count value of the listviews MAF Tag: how to set Openfiledialog to take directory Tag: 91100
  - 15
    - UITypeEditor or TypeConverter and ExtendedProperty problem I want to place my custom UITypeEditor or TypeConverter on ExtendedProperty. The problem is that ExtendedProperty is not an property but a set and get method. I've tried to place it in Pre and PostFilterProperties methods of Control that was extended by extender component but the property was not there. I don't have any idea what to do now. You don't have to give me the solution just a hint that I can follow up. Tag: how to set Openfiledialog to take directory Tag: 91098
  - 16
    - How to position message box? How to position message box programatically using C# .NET? Thanks. Tag: how to set Openfiledialog to take directory Tag: 91094
  - 17
    - How to delselect items in databound ListBox or ComboBox When I use the DataSource property of a ListBox or ComboBox, there is always a selected item. When I bind the control, I don't want anything selected. I have tried using the .SetSelected() method, setting, selectedIndex to -1 (twice in a row, blah blah), setting SelectedItem to null, etc. listBoxInventorParts.DataSource = _selectedInventorParts; listBoxInventorParts.DisplayMember = "InventorPartNumber"; listBoxInventorParts.ValueMember = "pkInventorPartId"; // Doesn't work listBoxInventorParts.SelectedIndex = -1; // Doesn't work listBoxInventorParts.SelectedItem = null; // Doesn't work listBoxInventorParts.SelectedValue = null; // Doesn't work listBoxInventorParts.ClearSelected(); // Doesn't work for(int i = 0; i < listBoxInventorParts.Items.Count; i++) { listBoxInventorParts.SetSelected(i, false); } Nice. Tag: how to set Openfiledialog to take directory Tag: 91092
  - 18
    - Draw nice 3D buttons by code in .NET? Hi All, Anyone know how to draw nice 3D buttons like this one by Code in .NET: http://www.econtechvn.com/en/aquabutton_detail.htm Please help me out. Thanks in advance. Tag: how to set Openfiledialog to take directory Tag: 91091
  - 19
    - Interthread communication? Hi, I'm fairly new to C# and .NET. I'm trying to write winforms app that simulates a piece of hardware that our company develops. The hardware behaves as a TCP server and processes commands received from clients. The winforms allows a user to change the state of the simulator, to simulate faults, state changes etc. What I've currently got is a simulator class that will run in its own thread and processes client commands. When the user makes state changes in the winform I need a method to inform the running thread that it needs to reload its internal state. I was hoping to avoid using semaphores by invoking an update method on the simulator thread, but I can't seem to find a way to do this (only from a thread pool thread). Any suggestions on a simple/elegant way of doing this? Are there standard .NET patterns that might help? Thanks, Mark Tag: how to set Openfiledialog to take directory Tag: 91088
  - 20
    - Double row column header in datagrid (Windows Form) This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C59F26.1608DB60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi: I want to create some columns in Datagrid that look like below. There is = a double row column header. Upper row is summary description. Lower row = has 2 columns(Net & Gross). I have no idea how to do it. Do you have any = idea about it? ----------------- Claim To Date ----------------- Net | Gross ----------------- 32.00 | 72.45 ----------------- 23.27 | 25.47 Thanks Dennis Huang ------=_NextPart_000_0006_01C59F26.1608DB60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2604" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT size=3D2>Hi:</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>I want to create some columns in Datagrid that look = like=20 below. There is a double row column header. Upper row is summary = description.=20 Lower row has 2 columns(Net & Gross). I have no idea how to do it. = Do you=20 have any idea about it?</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>-----------------</FONT></DIV> <DIV><FONT size=3D2>Claim To Date</FONT></DIV> <DIV><FONT size=3D2>-----------------</FONT></DIV> <DIV><FONT size=3D2>Net    | Gross</FONT></DIV> <DIV><FONT size=3D2>-----------------</FONT></DIV> <DIV><FONT size=3D2>32.00 | 72.45</FONT></DIV> <DIV><FONT size=3D2>-----------------</FONT></DIV> <DIV><FONT size=3D2>23.27 | 25.47</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>Thanks</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>Dennis Huang</FONT></DIV></BODY></HTML> ------=_NextPart_000_0006_01C59F26.1608DB60-- Tag: how to set Openfiledialog to take directory Tag: 91087
  - 21
    - Crystal Viewer Control Bug ? Hi, I've used the crystal report viewer in Window forms several times and have got the hang of logging into servers and passing parameters at runtime. I've written this new crystal report which works fine in the Crystal design editor during preview but on the same dataset it dosen't work in the dotnet windows form control. The report loads fine into the control it's just the Crystal scripts I have put against events inside the report EG suppress group and suppress fields don't run if I view the report through the viewer control. It looks like a bug as the report works fine through the editor and the dataset is the same. Any help on this subject would be great thanks. Regards. Mike. Tag: how to set Openfiledialog to take directory Tag: 91085
  - 22
    - Flicker Problems when Drawing a Custom Radio Button Hi All, I have created a radio button that uses images instead of the silly "circle" for a touch-screen kiosk application where users will have to use their large fingers to select radio buttons. For some reason, however, I can not get the damn thing to stop flickering! Would anybody (with past experience in this) be able to look at my code and see what they think? It would be greatly appreciated! This is what I've got.. using System; using System.Collections; using System.ComponentModel; using System.Drawing; using System.Data; using System.Windows.Forms; namespace System.Windows.Forms { /// <summary> /// Summary description for UserControl1. /// </summary> public class KioskRadioButton : RadioButton { public Image ImageSelected { get { return myImageSelected; } set { myImageSelected = value; } } private Image myImageSelected; /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public KioskRadioButton() { // This call is required by the Windows.Forms Form Designer. InitializeComponent(); SetStyle(ControlStyles.AllPaintingInWmPaint, true); SetStyle(ControlStyles.UserPaint, true); SetStyle(ControlStyles.DoubleBuffer, true); } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Component Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { components = new System.ComponentModel.Container(); this.Paint += new PaintEventHandler(MyRadioButton_Paint); } #endregion private void MyRadioButton_Paint(object sender, PaintEventArgs e) { if (this.Checked) { e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed; e.Graphics.Clear(this.BackColor); e.Graphics.DrawString(this.Text, this.Font, new SolidBrush(this.ForeColor), this.Image.Width + 5, e.ClipRectangle.Height/2 - this.Font.Height/2); e.Graphics.DrawImage(this.ImageSelected, 0, e.ClipRectangle.Height/2 - this.ImageSelected.Height/2); } else { e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed; e.Graphics.Clear(this.BackColor); e.Graphics.DrawString(this.Text, this.Font, new SolidBrush(this.ForeColor), this.Image.Width + 5, e.ClipRectangle.Height/2 - this.Font.Height/2); e.Graphics.DrawImage(this.Image, 0, e.ClipRectangle.Height/2 - this.Image.Height/2); } } } } Thank you!! Tag: how to set Openfiledialog to take directory Tag: 91083
  - 23
    - Is this a bug? Create a new Windows project and a button on it, on the click event of the button add the following code: Cursor.Current = System.Windows.Forms.Cursors.Cross; Run the project and click on the button, It was my understanding that the cursor should change but it does not, it only changes as long as the code is running for example, replace the previous code with the following: Cursor.Current = System.Windows.Forms.Cursors.Cross; System.Threading.Thread.Sleep(1000); This will change the cursor for one second. Note that the cursor only changes when the thread is bussy inside the click event. Is this a bug? Tag: how to set Openfiledialog to take directory Tag: 91082
  - 24
    - Problem Solution Explorer and forms I just noticed a very bizarre situation. In Solution Explorer, some of my forms did not display their forms icon, but rather a class icon. (This particular solution is under VSS control.) Therefore, I cannot see the form in the forms designer. Most of the forms are inherited from FormBase, which only contains a status bar with panels. Most of the forms are locked. I checked-out one form, and immediately its icon changed to the regular forms icon in Solution Explorer. I then undid the check-in, and the icon remained as the forms icon. I don't mind this 'work-around', but this technique worked on all the forms except for one. Any ideas? TIA Tag: how to set Openfiledialog to take directory Tag: 91080
  - 25
    - HDC System.ArguementException in IE emdedded control Hello, I am having a problem on a a PC where it throws an unhandled exception in in a embedded control in IE. The exception is a System.ArgumentException and I cannot even catch it to find out where it is coming from... I have a try..catch in loading the control, so that should catch all the errors. Help, as this happens intermitently but costs alot for the client when this happens. Any and all help will greatly be appreciated. Thanks, Bryan Tag: how to set Openfiledialog to take directory Tag: 91079
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  - 1
    - How to find what control is under the mouse pointer Hi, Does anyone know any way to find what control is under the mouse pointer? In my application (MDI forms application) I need to track mouse move events and find what control is currently under the mouse, it can be MDI child form, button, label, etc. Maybe some Win API function which finds Handle of the object so I could convert it to Control using FromHandle method? Or some .NET managed method? Thank you for the help, Oleg Tag: how to set Openfiledialog to take directory Tag: 91077
  - 2
    - DataGrid - InsertAt() - Error Modifying rows after new row inserte After inserting a new data row to a DataTable that is bound to a datagrid, I am unable to change data in a row that is after the newly added row without getting bizarre results. I have added the full code for the test below. Create a project drop in the code and run. Any help would be appreciated. Cheers, Dave Test #1 ====================== 1) Click on the row where ID = 1 2) Click "Add Row" button 3) Click on the cell ID = 2 Number = 4 4) Change the number from 4 to 5 5) Move off the row (i.e. hit the down arrow key) 6) Notice there are 2 rows with ID = 2 now 2, 5, 6 2, 4, 6 Test #2 ====================== 1) Click on the row where ID = 1 2) Click "Add Row" button 3) Click "Remove Binding" 4) Click "Add Binding" 5) Click on the cell ID = 2 Number = 4 6) Change the number from 4 to 5 7) Move off the row (i.e. hit the down arrow key) 8) Notice there are 2 rows with ID = 2 now 2, 5, 6 2, 4, 6 ========================== using System; using System.Data; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; namespace Controls { /// <summary> /// Summary description for TestDataGrid. /// </summary> public class TestDataGrid : System.Windows.Forms.Form { private int idCounter = 100; #region Unimportant Window stuff private System.Windows.Forms.DataGrid theGrid; private System.Windows.Forms.Button addButton; private System.Data.DataSet myDataSet; private System.Data.DataTable rateTable; private System.Data.DataColumn dataColumn1; private System.Data.DataColumn dataColumn2; private System.Data.DataColumn dataColumn3; private System.Windows.Forms.Button removeBinding; private System.Windows.Forms.Button addBinding; /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public TestDataGrid() { // // Required for Windows Form Designer support // InitializeComponent(); // // TODO: Add any constructor code after InitializeComponent call // } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.theGrid = new System.Windows.Forms.DataGrid(); this.myDataSet = new System.Data.DataSet(); this.rateTable = new System.Data.DataTable(); this.dataColumn1 = new System.Data.DataColumn(); this.dataColumn2 = new System.Data.DataColumn(); this.dataColumn3 = new System.Data.DataColumn(); this.addButton = new System.Windows.Forms.Button(); this.removeBinding = new System.Windows.Forms.Button(); this.addBinding = new System.Windows.Forms.Button(); ((System.ComponentModel.ISupportInitialize)(this.theGrid)).BeginInit(); ((System.ComponentModel.ISupportInitialize)(this.myDataSet)).BeginInit(); ((System.ComponentModel.ISupportInitialize)(this.rateTable)).BeginInit(); this.SuspendLayout(); // // theGrid // this.theGrid.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right))); this.theGrid.DataMember = "RateTable"; this.theGrid.DataSource = this.myDataSet; this.theGrid.HeaderForeColor = System.Drawing.SystemColors.ControlText; this.theGrid.Location = new System.Drawing.Point(8, 40); this.theGrid.Name = "theGrid"; this.theGrid.Size = new System.Drawing.Size(368, 184); this.theGrid.TabIndex = 0; // // myDataSet // this.myDataSet.DataSetName = "NewDataSet"; this.myDataSet.Locale = new System.Globalization.CultureInfo("en-US"); this.myDataSet.Tables.AddRange(new System.Data.DataTable[] { this.rateTable}); // // rateTable // this.rateTable.Columns.AddRange(new System.Data.DataColumn[] { this.dataColumn1, this.dataColumn2, this.dataColumn3}); this.rateTable.TableName = "RateTable"; // // dataColumn1 // this.dataColumn1.ColumnName = "ID"; this.dataColumn1.DataType = typeof(int); // // dataColumn2 // this.dataColumn2.ColumnName = "Number"; this.dataColumn2.DataType = typeof(int); // // dataColumn3 // this.dataColumn3.ColumnName = "Price"; this.dataColumn3.DataType = typeof(int); // // addButton // this.addButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left))); this.addButton.Location = new System.Drawing.Point(16, 256); this.addButton.Name = "addButton"; this.addButton.TabIndex = 1; this.addButton.Text = "Add Row"; this.addButton.Click += new System.EventHandler(this.addButton_Click); // // removeBinding // this.removeBinding.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left))); this.removeBinding.Location = new System.Drawing.Point(136, 256); this.removeBinding.Name = "removeBinding"; this.removeBinding.Size = new System.Drawing.Size(104, 23); this.removeBinding.TabIndex = 3; this.removeBinding.Text = "Remove Binding"; this.removeBinding.Click += new System.EventHandler(this.removeBinding_Click); // // addBinding // this.addBinding.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left))); this.addBinding.Location = new System.Drawing.Point(288, 256); this.addBinding.Name = "addBinding"; this.addBinding.Size = new System.Drawing.Size(104, 23); this.addBinding.TabIndex = 4; this.addBinding.Text = "Add Binding"; this.addBinding.Click += new System.EventHandler(this.addBinding_Click); // // TestDataGrid // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(400, 293); this.Controls.Add(this.addBinding); this.Controls.Add(this.removeBinding); this.Controls.Add(this.addButton); this.Controls.Add(this.theGrid); this.Name = "TestDataGrid"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "TestDataGrid"; this.Load += new System.EventHandler(this.TestDataGrid_Load); ((System.ComponentModel.ISupportInitialize)(this.theGrid)).EndInit(); ((System.ComponentModel.ISupportInitialize)(this.myDataSet)).EndInit(); ((System.ComponentModel.ISupportInitialize)(this.rateTable)).EndInit(); this.ResumeLayout(false); } #endregion #endregion /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void addButton_Click(object sender, System.EventArgs e) { Random random = new Random(idCounter); DataRow row = rateTable.NewRow(); int position = theGrid.CurrentRowIndex + 1; row[0] = idCounter++; row[1] = (int)( random.NextDouble() * 100 ); row[2] = (int)( random.NextDouble() * 10 ); rateTable.Rows.InsertAt( row, position ); rateTable.AcceptChanges(); } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void removeBinding_Click(object sender, System.EventArgs e) { this.theGrid.DataSource = null; } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void addBinding_Click(object sender, System.EventArgs e) { this.theGrid.DataMember = "RateTable"; this.theGrid.DataSource = this.myDataSet; } /// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void TestDataGrid_Load(object sender, System.EventArgs e) { int numRows = 5; DataRow row; for (int i = 0; i < numRows; i++) { row = rateTable.NewRow(); row[0] = i * 1; row[1] = i * 2; row[2] = i * 3; rateTable.Rows.Add( row ); } } } } Tag: how to set Openfiledialog to take directory Tag: 91075
  - 3
    - PropertyGrid and input events Hello. Why in PropertyGrid dont fired my event handlers on mouse and keyboard events? Is it bug or legal behavior? Tag: how to set Openfiledialog to take directory Tag: 91073
  - 4
    - Issue w/ Property Grid and unhandled exceptions I am having an issue with the Windows Forms Property Grid control. Unhandled exceptions that occur in my custom TypeConverter are being suppressed. Example, I have created a custom TypeConverter that inherits from System.ComponentModel.ExpandableObjectConverter. I have a coding error in the ConvertTo function. When the Property Grid control fires the ConvertTo method, an unhandled exception should be raised, but it isn't. The only thing that happens is that the ConvertTo function stops executing at the point of the exception and the next statement on the call stack is executed. Now obviously, if I have no coding errors, this wouldn't be a concern, but I am human and do make mistakes (rarely, LOL) so this does concern me because I could look over coding errors during testing since the IDE/debugger is not reporting the unhandled exception. Exceptions in other parts of the application work fine. Is the Property Grid suppressing exceptions? Any help would be greatly appreciated. Tag: how to set Openfiledialog to take directory Tag: 91072
  - 5
    - RichTextBox manipulating the client area Hi I am trying to create a code editor using the RichTextBox as a base. One objective is to implement a "gutter" in which line numbers can be displayed. From much searching of the web it would appear that this should be possible by modifying the size of the client and non-client areas within the control. I have foud some examples (in various languages) that implement similar behaviour on different base classes. When I try to apply the logic within these examples to the RichTextBox I am getting "out of memory" exceptions. The code I am working with is as follows... [StructLayout(LayoutKind.Sequential)] internal struct RECT { public int Left; public int Top; public int Right; public int Bottom; } [StructLayout(LayoutKind.Sequential)] internal struct NCCALCSIZE_PARAMS { public RECT rgrc0; public RECT rgrc1; public RECT rgrc2; public IntPtr lppos; } [StructLayout(LayoutKind.Sequential)] internal struct WINDOWPOS { public IntPtr hwnd; public IntPtr hWndInsertAfter; public int x; public int y; public int cx; public int cy; public uint flags; } ....... protected override void WndProc(ref Message m) { switch (m.Msg) { case WM_NCCALCSIZE: { if(m.WParam == IntPtr.Zero) { NCCALCSIZE_PARAMS nccsp; nccsp = (NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(NCCALCSIZE_PARAMS)); // NOTE: Any attempt to reference nccspp.lppos causes an out of memory exception - it is a zero pointer // WINDOWPOS wp; // wp = (WINDOWPOS)Marshal.PtrToStructure(nccspp.lppos, typeof(WINDOWPOS)); // NOTE: The values returned in rgrc0 appear to be valid window co-ordinates however some examples indicate // that these should be set to the co-ordinates from the WINDOWPOS structure returned from nccsp.lppos nccsp.rgrc0.Left += 15; // NOTE: Any attempt to set the values of rgrc1 causes an out of memory exception // nccsp.rgrc1.Left = nccsp.rgrc0.Left; // nccsp.rgrc1.Right = nccsp.rgrc0.Right; // nccsp.rgrc1.Top = nccsp.rgrc0.Top; // nccsp.rgrc1.Bottom = nccsp.rgrc0.Bottom; } break; } default: { break; } } base.WndProc (ref m); } Can anyone explain where I am going worng with this? Thanks in advance Andrew Wiles Tag: how to set Openfiledialog to take directory Tag: 91064
  - 6
    - Binding custom objects and comboboxes Hi I have a custom object (LineItem) which has a property that is another custom object (LineItemType) I am trying to use binding with with a combo box on a form but cannot get it working correctly without exposing the LineItemType key publicly in the LineItem object Is it not possible (using binding) to set the datasource of a combobox to a collection of LineItemTypes (deriving from CollectionBase and ITypedList), setting the display member, and then using code similar to what is below to have two way binding comboBox1.DataBindings.Add("SelectedValue", _lineItem, "LineItemType"); I was hoping to be able to do this without exposing the LineItemTypeKey in the LineItem object and setting the LineItemTypeKey as the ValueMember in the combo. Rgds Steve Tag: how to set Openfiledialog to take directory Tag: 91063
  - 7
    - Outlook bar Hello, I am developing a C++/CLI winforms application. In Outlook 2000 and 2002 there is vertical bar on the left hand side which allows the user to switch between modules (Mail, Calendar, etc). 1. Is there a similar control for .NET that comes close to that? Or 2. Whats is the best way to replicate that using standard .NET controls like Button etc. Rasika. Tag: how to set Openfiledialog to take directory Tag: 91059
  - 8
    - DRAWIMAGE() -> TONS OF PAGE FAULTS! Originally, I thought this was due to DoubleBuffer, but ran some further experiments and discovered that page faults occur when calling DrawImage(). For example, create 2 images about 800x800, then call DrawImage to copy from to the other (on say a mouse click). Notice about 600+ page faults occur each time (the larger the area, the greater the number of page faults). I have an application that calls DrawImage() once a second to update the main screen, so after a few days, the page fault count is monsterous. I swear this bogs down my system too. Anyone else have this problem? Any solutions? Can someone report this as a DEFECT. Thanks, Steve Tag: how to set Openfiledialog to take directory Tag: 91058
  - 9
    - SQL Server does not exist or access denied. I build a .net window app and created a setup package. The package includes the framework and installs it if necessary. I successfully installed on several machines with no problems, the app runs perfectly. However on one machine when I run the app I get the error: ' SQL server does not exist or access denied.' We have checked our network and every thing looks fines. Does any one know what the problem is? Tag: how to set Openfiledialog to take directory Tag: 91057
  - 10
    - Is it possible to have Min/Max buttons AND Help button on a form's title bar? And more... Hello, I guess the subject line says it all. Does anyone know why this restriction exists? It does seem rather arbitrary. Also, can the helpbutton's behavior be mapped to another button, like one in a toolbar? Can the question mark cursor be invoked other than by clicking on the help button? Thanks! Keith Tag: how to set Openfiledialog to take directory Tag: 91052
  - 11
    - DataGridColumnStyle issue I've hit a wierd issue with the DataGridColumnStyle. I've got a DataGrid that has a DateTimePicker column. Using the example from the msdn i've created a class that inherits DataGridColumnStyle to host the DateTimePicker: public class DataGridTimePickerColumn:DataGridColumnStyle { private DateTimePicker myDateTimePicker = new DateTimePicker(); } and of course it includes all the other methods needed to make it run. I also used the same method to add a ComboBox column to the datagrid. These classes worked just fine until recently, the datagrid would load you could click on the column and get a DateTimePicker object and select a date. Today I noticed that when I click either column all I get is a TextBox. So I checked the class and found that Design View is now showing the following error for both classes: The designer must create an instance of type 'System.Windows.Forms.DataGridColumnStyle' but it cannot because the type is declared as abstract. I have done several updates lately for ASP.Net and and the Framework. I also had an Office XP update that messed with this project, the solution has 2 projects and after the update I loaded it and only one project was present so I had to re-add the second project. Any help would be greatly appreciated. Dave Hagerich Tag: how to set Openfiledialog to take directory Tag: 91049
  - 12
    - RichTextBox how to catch CUT and PASTE? I have a problem with the RichTextBox Control. I need to catch CUT and PASTE (on ctrl+X and Ctrl+V). So I subclassed RichTextBox, and overrode WndProc looking for WM_PASTE and WM_CUT (0x0302 and 0x0300). But I don't get these messages on Ctrl+X or Ctrl+V. If I subclass a TextBox, I catch the messages as expected, but not in a RichTextBox. I do get these messages if I call the Paste() and Cut() methods directly, but not on the shortcut keys. Does anyone know how to catch these? Tag: how to set Openfiledialog to take directory Tag: 91048
  - 13
    - IExtenderProvider and Type Property I've spent several hours on Google and founds 100's of entries that get close to the answer, but can't quite get there. I'm creating an component that acts as an ExtenderProvider for other components. One of the properties that it exposes is a class I've created that itself has a number of properties. I've created a type converter that is based on ExpandableObjectConverter. Overrode the GetCreateInstanceSupported, CreateInstance, CanConvertTo, and ConvertTo methods. Here is the problem: The only way I can get it to work correctly is to create an InstanceDescriptor based on a constructor that has ALL the properties. The class is pretty complex and I'd rather not have to have to reference all the properties in a constructor, InstanceDescriptor, etc. Is there a way to do this with an ExtenderProvider, just use a few key properties in the InstanceDescriptor and have any other properties serialized the usual way (i.e. the DesignerSerializationVisibility.Content? If I set DesignerSerializationVisibility on the GetXXXXX method of the ExtenderProvider, it seems to treat it as a property of the actual component. Seems like I remember seeing something about this before, but can't find the examples anywhere. Thanks in advance for any help. Didn't see a group for just .Designer issues, so thought I'd start here. Tag: how to set Openfiledialog to take directory Tag: 91045
  - 14
    - TypeConverter for a UserControl I am working on a custom DataGridColumnStyle that can host a UserControl. I have created a public property on this ColumnStyle of type MyUserControlBase. I would like to be able to set this property in the PropertyGrid by choosing from a list of UserControls that inherit from MyUserControlBase. Using a TypeConverter that inherits from TypeList Converter, I have been able to get the property to show up in the PropertyGrid and I can even get the drop-down list to show the list of UserControls. But when I select one of them, I get a designtime error of "Invalid property value - Object type cannot be converted to target type." I have tried numerous combinations of overriding CanConvertFrom/ConvertFrom & CanConvertTo/ConvertTo without success. Can someone give me a push in the right direction? Thanks. Tony Tag: how to set Openfiledialog to take directory Tag: 91044
  - 15
    - Is a 3rd party "Provisioning Engine" to a populate Hierarchical Grid available? Hi all I need to write an application where a hierarchical grid can be populated by a set of data from a database. The set of data that will populate the grid will be determined by the properties of a number of class objects. Is there any 3rd party solution that can cope with this? I know I can write code to create a number of datasets with relations and bind them to a grid, but I was wondering if there was a 3rd party product to do all of this so all I have to do is just say to the 3rd party product in one line of code: "add this object to the grid and display its hierarchy". Thanks for any help. Andrew Tag: how to set Openfiledialog to take directory Tag: 91041
  - 16
    - thumbnail of file (like explorer does) Is there anyway to get a thumbnail of a file similar to the way explorer does that can be used in an application? I want to for example if i drag a file over a picture box, if it has the ability to have a thumbnail, show it in the picture box. thanks! Tag: how to set Openfiledialog to take directory Tag: 91037
  - 17
    - LVM_GETITEMTEXT does not work Hi, I'm trying to access listview control in a VB application from C# application. Follwoing is my code StructLayoutAttribute(LayoutKi=ADnd.Sequential)] public struct LV_ITEM { public UInt32 mask; public Int32 iItem; public Int32 iSubItem; public UInt32 state; public UInt32 stateMask; public String pszText; public Int32 cchTextMax; public Int32 iImage; public IntPtr lParam; }const int BUFFER_SIZE =3D 512; LV.iItem =3D 3; LV.mask =3D Win32API.LVIF_IMAGE; LV.cchTextMax =3D 255; LV.iSubItem =3D 0; LV.pszText =3D new String('\0', 255); Win32API.SendMessage(hWnd, Win32API.LVM_GETITEMTEXT, 3, ref LV); string text =3D LV.pszText.ToString(); My definations are as given below. const int LVM_FIRST =3D 0x1000; const int LVM_GETITEMCOUNT =3D LVM_FIRST + 4; const int LVM_GETITEM =3D LVM_FIRST + 5; const int LVIF_TEXT =3D 0x0001; LVM_GETITEMTEXT =3D (LVM_FIRST + 45); [DllImport("user32.dll")] static extern int SendMessage(IntPtr window, int message, int wparam, ref LV_ITEM lparam); My Problem is pszText always returns empty string. Please help.=20 Thanks in advance.=20 J Tag: how to set Openfiledialog to take directory Tag: 91034
  - 18
    - DoubleBuffer PageFaults? Hi, I notice that my app (with a double buffer form) throws TONS of page faults whenever it refreshes. I googled, and found the same complaint on GotDotNet. Does anyone have any info on this, or could at least get this in the BUG QUEUE! Thanks, Steve Serious GDI+ bug on VS 2005 Posted on: 07/21/2005 07:41:23 Hi Id be interested in hearing if anyone else can see this bug, it is VERY easy to try and repro, really very easy. Create a new basic windows app, C# will do. In the forms constructor put this before or after the InitializeComponent call: this.SetStyle(ControlStyles.OptimizedDoubleBuffer,true); build and run the app. Use task manager to observe the processes PF delta. Vertically enlarge the form. It will be observed that the process generates many thousands of page faults per second, with a full screen app at 1600 x 1200 I have seen in excess of 50,000 PFs per second! The problem is always present. The problem also happens if we set DoubleBuffer property; although this s described as Obsolete in the latest beta documentation. The problem occurs with both 16-bit and 32-bit color settings. It occurs at 1600x1200 and 1024x768 It occurs with desktop style set to Classic or Windows XP It occurs when I use the NVidia driver for my GeForce FX 5200 or if I boot XP in VGA mode (thus forcing it to use a different driver). It occurts on both Win XP Professional (32-bit) and Windows XP Proferssional 64 for AMD (The OEM version, NOT a beta) I am using an Athlon 64 3400+, 1Gig and Asus K8V-SE DeLuxe motherboard. Basically the fault seems to be independent of driver, color depth, resolution, refresh rate and operating system. By not calling SetStyle for DoubleBuffer or OptimizeDoubleBuffer the problem goes away, but the app then suffers from very bad flickering. Setting both styles has no effect either. This was first reported in bug: FDBK23039 but was then only seen in a test version of a complex app that also uses some sophisticated class libraries (under development) and some complex unmanaged (unsafe) library (also under development) and naturally this was the main suspect, since it access lots of memory and could have lay behind the page faulting. Since the problem can very easily be reproduced with almost no effort, it is now clear that it lies somewhere in the Framework, GDI+ or possibly some component of XP (common to both 32-bit and 64-bit ?) I have reported this to MS, althoung I cant disguise my intense frustration at the apalling quality of their bug reporting system, after entering this detailed report (that took me several hours to carefully test and document) the stupid web based bug system refuses to accept > 2000 chars, forcing me to hastily edit and break it up and making almost impossible to now follow. Anyway I am very very curious to see if anyone else gets (or doesnt get) this behavior. H Tag: how to set Openfiledialog to take directory Tag: 91020
  - 19
    - turn off scroolbars in mdi parent Hi, I tried to turn of the scrollbars in a MDI-Parent-From, but it does not work :-(. Here my init code: private void InitializeComponent() { this.AutoScale = false; this.ControlBox = false; this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.IsMdiContainer = true; this.Name = "Dashboard"; this.ShowInTaskbar = false; this.Text = "Dashboard"; this.VScroll = false; this.HScroll = false; this.WindowState = System.Windows.Forms.FormWindowState.Maximized; } How can i turn of the scrollbars? Please dont ask me why i wanna do this ;-) regards henrik Tag: how to set Openfiledialog to take directory Tag: 91019
  - 20
    - Textbox Enter-key Beep I'm writing a winforms app in vb.net 1.1 and have an issue when users click the enter key on a textbox. It make a beep sound as if an error had occurred. how can I turn off the beep sound? I'm actually trapping the key up event and when the user uses the enter key I do something. Any good advise? I saw some other posts on this but they had already expired and were no longer on the server. Thanks. -- moondaddy@nospam.nospam Tag: how to set Openfiledialog to take directory Tag: 91017
  - 21
    - How To get the image drawn in MFC ? Hi, I am trying to print an image drawn in MFC, by using Graphics object in C#. My problem is that, I am able to print just the visible part of the image. How could I get the part of an image which is not visible due to scrolling ? Below is the code:- // Get a Graphics object associated with the screen. Graphics grfxViewport = Graphics.FromHwnd(this.Handle); // Create a bitmap the size of the Window. bm = new Bitmap((int) grfxViewport.VisibleClipBounds.Width , (int) grfxViewport.VisibleClipBounds.Height , grfxViewport); // Create a Graphics object associated with the bitmap. Graphics grfxBitmap = Graphics.FromImage(bm); // Get hdc's associated with the Graphics objects. IntPtr hdcViewport = grfxViewport.GetHdc(); IntPtr hdcBitmap = grfxBitmap.GetHdc(); BitBlt(hdcBitmap, 0, 0, bm.Width, bm.Height,hdcViewport, 0, 0,0x00CC0020); grfxBitmap.ReleaseHdc(hdcBitmap); grfxViewport.ReleaseHdc(hdcViewport); // Manually dispose of the Graphics objects. grfxBitmap.Dispose(); grfxViewport.Dispose(); Invalidate(); Thanks, -Brajesh Tag: how to set Openfiledialog to take directory Tag: 91016
  - 22
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  - 23
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  - 24
    - Datagrid Multiselection by pressing Shift + Ctrl + Down Arrow Hi, How do I stop multiselection when a user pressing Shift + Ctrl + Down Arrow keys in data grid. Actually it is selecting all the rows from the current position. I want only one record to be selected at a time. I can do this when Shift + down arrow is pressed but have got no clue how to do it when Shift + Ctrl + Down Arrow is pressed together. Please help! Regards. Raj Tag: how to set Openfiledialog to take directory Tag: 91008
  - 25
    - Need to write a Kiosk style program in VB.net Hello. I need to create a Kiosk style program using VB.Net. I have maximized the window, set the window style, etc. I need to know how to trap all keyboard events so that the user cannot access anything outside of my app. Does anyone know of a good resource that demonstrates how to do this? Thanks in advance, Mike Tag: how to set Openfiledialog to take directory Tag: 91005

Hi,

I want to select the directories instead of files using the Open or Save
file dialog boxes. Is it possible to simulate this?

thanks
vinod

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Re: how to set Openfiledialog to take directory by Herfried

Herfried
Sat Aug 13 14:46:18 CDT 2005

"ve" <ve@discussions.microsoft.com> schrieb:
> I want to select the directories instead of files using the Open or Save
> file dialog boxes. Is it possible to simulate this?

Displaying the dialog for choosing a directory
<URL:http://dotnet.mvps.org/dotnet/faqs/?id=folderbrowserdialog&lang=en>

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>

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Re: how to set Openfiledialog to take directory by Helge

Helge
Mon Aug 15 02:37:27 CDT 2005

Herfried K. Wagner [MVP] wrote:

>> I want to select the directories instead of files using the Open or
>> Save file dialog boxes. Is it possible to simulate this?

Actually, I'm interested in this too.

> Displaying the dialog for choosing a directory
> <URL:http://dotnet.mvps.org/dotnet/faqs/?id=folderbrowserdialog&lang=en>

I need to provide a selection dialog that allows *both* files and
directories to be selected. Any suggestions?

Basically it should be "A FileDialog which does not descend directories
when [Open] is clicked".

--
Helge Jensen
mailto:helge.jensen@slog.dk
sip:helge.jensen@slog.dk
-=> Sebastian cover-music: http://ungdomshus.nu <=-

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