question about referesh

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  - 1
    - How to display money number in a DataGrid? I want to display a double field in the format of currency. For example 100.345 as 100.36 But since the data grid is bound to a dataset, I find no way to control it I am using an untyped dataset. Can this problem be solved if I using a typed dataset Thanks a lot. Tag: question about referesh Tag: 67563
  - 2
    - How to create an Outlook Style Event Calendar in VB.Net Hi, Does anyone have any ideas as to how I should best approach creating an outlook style event calendar in VB.NET? Any help would be greatly appreciated. Thanks. Paul Tag: question about referesh Tag: 67562
  - 3
    - Can't close a window form I am having a problem closing a window form. Calling Close() or click X does close it after a certain combination of events. When I overrode OnClosing, I found that the CancelEventArgs's Cancel property was set to true. Would some one help me out why CancelEventArgs's Cancel property be set to true? Tag: question about referesh Tag: 67559
  - 4
    - Dynamically Add User Controls to a Form at Run Time? Is it possible to dynamically load a user control on a windows form similar to the way you can load a web user control to an aspx page. Basically, I would like the database to determine which controls are loaded to a form. I am trying to mimic the IBuySpy portal functionality in a windows application. Any ideas on how to do this? Tag: question about referesh Tag: 67558
  - 5
    - PropertyGrid section How do I make sections in a PropertyGrid. IOW. what do I have to do to prevent every public property appearing in the "misc" section? TIA, Bronco Tag: question about referesh Tag: 67555
  - 6
    - Launching IE, with encrypted parameters, to an SSL website I have a Windows Forms application where I request a username/password from the user. When the user clicks a button, I would like to launch IE to a given page on my SSL webserver and send along the username/password pair that was provided by the user. I understand how to open IE to a specific website from a Windows Forms application using the System.Diagnostics.Process.Start method, but I don't know how to include the username and password as form fields in that request (so they'll be encrypted during transmission). Obviously I don't want to include that data as part of the QueryString ... My only thought is that I can create a temporary HTML on the client side which contains the username/password in hidden form fields and does something like onLoad="form.submit();" But this solution seems messy... Any ideas? Thanks, Michael Carr Tag: question about referesh Tag: 67550
  - 7
    - Code Editor using ListView for line numbers Hi, I am making a code editor and want to display line numbers to the left. I have a UserControl with a ListView docked to the left edge and a TextBox that makes up the rest. I am able to add items to the ListView when a new line is entered in the TextBox (these items are the line numbers). What I am not able to figure out is how to update the view of the ListView when the TextBox starts scrolling vertically. I would like the ListView to show those line numbers only that the TextBox is currently displaying. It would be great if someone could help me out, Navin Tag: question about referesh Tag: 67547
  - 8
    - Orphaned ControlBox in MDI child So, I have this MDI application. Occasionally, if I have a few MDI children open, and then close one of them, the ControlBox for the MDI children becomes duplicated, right next to one another in the far upper right hand corner, below the ControlBox for the MDI parent. It has the appearrance of Minimize, Maximize, Close, Minimize, Maximize, Close(except it looks like the Underscore, Line at top of box, Capital X duplicated). Both of the ControlBoxes seem to work. However, if I close all of the MDI children, after the last one is closed, there is still a ControlBox remaining, orphaned, below the ControlBox for the MDI parent? Odd huh Michael Tag: question about referesh Tag: 67544
  - 9
    - Merging cells on datagrid Hi I have a windows forms project with a form that has a datagrid on it. I want to merge cells which are same value Is it possible to do this Current vie ID City Ban ---------------------------- 1 Istanbul Anadol ---------------------------- 2 Istanbul Financ ---------------------------- 3 Istanbul Tec ---------------------------- 4 Ankara Publi ---------------------------- 5 Ankara Famil ---------------------------- 6 Ankara Whit Wanted vie ID City Ban ---------------------------- 1 Anadol 2 Istanbul Financ 3 Tec ---------------------------- 4 Publi 5 Ankara Famil 6 Whit ---------------------------- Thanks Tag: question about referesh Tag: 67542
  - 10
    - Is there really no way to hide a TabPage? Hide and Visible have no effect. this.tabControl1.TabPages[iField].Visible = false; this.tabControl1.TabPages[iField].Hide(); I hear that the TabControl in the .NET framework is a wrapper of the Tab control in the Common Control Library. I read a posting that stated: "the only way to do what you want to achieve is by using the horribly and unfriendly method of removing and adding tabs." http://tinyurl.com/2jb3v Thanks in advance for any tips or suggestions, -Ed Tag: question about referesh Tag: 67540
  - 11
    - ADSI with NT 40 I created a windows form in Csharp. I successfully installed the application on the target computer. The OS is NT40 with the latest service pack on it and .Net Framework 1.1. I also went to Microsoft website and download the ADSI for NT 40 and installed it on the target computer. The application (using ADSI) is looking at the NT group of the user that is currently logged in. When I launched the application, ther error came up and displayed a message saying: Can not find RADMIN32.DLL in the system32 directory. The machine where I developed it has Windows 2000. I guess Windows 2K has a DLL that NT does not. I tried to search on Google for RADMIN32.dll but no results came up. Can you help? Tag: question about referesh Tag: 67539
  - 12
    - Image Gone when apply Application.enablevisualstyles() Hi, I found that when I apply application.enablevisualstyles. all the button image and listview image are not shown up. pls help me, anywhere to show the image when i apply that features Thank you Tag: question about referesh Tag: 67537
  - 13
    - Guidance needed with Drag and Drop style calander Hi, I'm currently pondering how to write a simple scheduling app in VB.Net that displays a horizontal monthly timeline of days, from left to write, and then colour coded bookings for each of the resource in a grid format underneath. When creating bookings I would like to be able to highlight the days that the booking spans for a resource, just like in Outlook Calendar where you can create an appointment by highlighting the number of half-hours it spans. Subsequently I would like to be able to resize the appointment, and drag and drop it either elsewhere in the persons timeline, or across to another persons timeline. It goes without saying that I would need to keep track of the booking movements before they are saved to the database. I have searched high and low for example code that would allow me to perform such functioality, but to no avail. Has anyone had any experience of this type of coding before who could point me in the right direction? Any help would be gratefully received. Thanks. Paul Tag: question about referesh Tag: 67536
  - 14
    - problem with axwebbrowser on tabcontrol in usercontrol Hoping someone can help me here..... I have seen numerous references from other people with a similar problem..... I have a Windows Forms usercontrol which contains a tab control with two tab pages, each of which contains an axWebBrowser control. I am navigating each axWebBrowser to a different word document, but, when I click on the second tab page, the second web browser does not appear. If I place the tab control straight onto a windows form then it works fine. Can anyone offer a workaround? Tag: question about referesh Tag: 67535
  - 15
    - Drag and Drop of Class Instance I've been experimenting with drag and drop. I have a program which displays a DataSet in a DataGrid. I have sucessfully used the MouseDown event to locate the appropriate DataRow and to pass it to DoDragDrop. When I drop it, I see an item of type DataFormats.Serializable. But what do I do with the data that comes back when you use e.Data.GetData? It's a System.__ComObject, and I don't know what to do with it. Can anyone point me to an exanple or article on doing this? Thanks, John Saunders John.Saunders at SurfControl.com Tag: question about referesh Tag: 67532
  - 16
    - How to bind Data Grid to non-DataTable type, but still get auto columns (sorry about the earlier version of this, I pressed enter, and it sent it without getting a chance to write subject I've recently got involved in a project that requires me to use some other type of input that a DataTable as my input, such as an array list. What I'm tring to find out, is how can I use an arraylist (or maybe some better control) to populate a DataGrid so that the 'columns/fields' show up automatically. This would be very helpful in situations in which I would like to use the wizard like features of the datagrid such as the property builder Any help would be appreciated. Thanks in advance!!!!!!!! Tag: question about referesh Tag: 67528
  - 17
    - Bind Data Grid to non-datatable, but still want automatic columns Tag: question about referesh Tag: 67527
  - 18
    - How To: Display objects in a PropertyGrid DropDown list? I followed the MSDN example that uses a StringConverter to display states (like Ohio, Florida,) in a PropertyGrid using a DropDown list. This works fine for strings, but I would like to do this with objects I create on the fly. I think I have to create a custom TypeConverter, but I'm not sure how. Any examples would be helpful. Thanks, Steve Tag: question about referesh Tag: 67523
  - 19
    - Painting over an ActiveX-Control Hello, I am working on an enhanced HTML-Editor based on DHTMLEdit. So I created a subclass like that: public class HTMLEditor : AxDHTMLEDLib.AxDHTMLEdit I have created a lot of functions to insert Tables, Images, etc. Edit them, drag Table cells, etc... What I now basically want is to draw my own stuff in the editing window on top of that which is drawn anyway by DHTMLEdit. For example a grid like Visual Studio .NET does in HTML-View. Or drawing boxes over tables which the mouse is hovering like Frontpage 2003 does... I thought I simple override WndProc, catch WM_PAINT, let the base class do that drawing stuff and then I just paint my stuff over it, like that: protected override void WndProc(ref System.Windows.Forms.Message m) { base.WndProc(ref m); if (m.Msg == WM_PAINT) { IntPtr hDC = IntPtr.Zero; hDC = GetDC(this.Handle); Graphics g = Graphics.FromHdc(hDC); g.FillRectangle(new SolidBrush(Color.Red),0,0,100,100); g.Dispose(); ReleaseDC(this.Handle, hDC); } } I tried other things to get an instance of Graphics, like CreateGraphics-Member of Control, etc. When starting the app, I see that red rectangle, but a second later it's "hidden" by the HTMLEditor, and its never visible again. I also played around with the ControlStyles, but did not find anything that worked... Anyone has an idea? Thanks in advance, Phillip Schuster Tag: question about referesh Tag: 67522
  - 20
    - sission object Is it possible to check the session object from a windows form? I'm making a shared assembly and I want it to work with my windows forms and my asp.net forms. If asp.net is calling it I want it to check for somehitng in the session object. If the windows form is calling it then I don't want it to bypass the session check. How can I do this (c#) Thanks! Tag: question about referesh Tag: 67518
  - 21
    - Datagrid and Bound ComboBox Columns Hi, I have a tough one.. I have a datagrid that is bound to a typed dataset the following way Dim ds as New MyDataSe Datagrid.Datasource = d Datagrid.DataMembre = "BonReception" 'A datatable from my datase In that datagrid I have to combobox column (they come from a class I have made) and the combobox are bound like this ComboBoxColumn.ComboBox.DataSource = d ComboBoxColumn.ComboBox.DisplayMember = "Intervenant.TypeIntervenant" 'Another datatable from my datase ComboBoxColumn.ComboBox.ValueMember = "Intervenant.ID ComboBoxColumn.ComboBox.DataBindings.Add("SelectedValue", ds, "BonReception.TypeIntervenantID" The second combobox column's combobox use a data relation between the table Intervenant and IntervenantDetai ComboBoxColumn.ComboBox.DataSource = d ComboBoxColumn.ComboBox.DisplayMember = "Intervenant.IntervenantIntervenantDetail.Intervenant" ComboBoxColumn.ComboBox.ValueMember = "Intervenant.IntervenantIntervenantDetail.ID ComboBoxColumn.ComboBox.DataBindings.Add("SelectedValue", ds, "BonReception.IntervenantDetailID" The comboboxes in each column behave as expected, if you select a TypeIntervenant in the first combobox, the second combobox only displays the Intervenant that match the selected TypeIntervenant in the first combobox The problem is this, the data is displayed in the first combobox column, but only in the first row of the second combobox column. If I click in the first column on the second row then in the second column the first row will go blank and the second row will display it's value. If I click in the second column at any row the combobox shows up with the right value for that row If I remove the data relation between table Intervenant and IntervenantDetail, the data is displayed correctly and everything behave as expected. But I don't have the relation between the two combobox columns and I need that Here is the code for my ComboBoxColumn Class Public Class DataGridFormattableComboBoxColum Inherits DataGridColumnStyl Private isEditing As Boolea Private isReadOnly As Boolea Private _cm As CurrencyManage Private _RowNum As Intege Private WithEvents _ComboBox As New NoTabComboBo Public Event SetCellFormat As FormatCellEventHandle Public Event CurrentCellDataChanged(ByVal MappingName As String, ByVal Data As Object Public Sub New( MyBase.New( ComboBox.Visible = Fals End Su Public Property ComboBox() As NoTabComboBo Ge Return _ComboBo End Ge Set(ByVal Value As NoTabComboBox _ComboBox = Valu End Se End Propert Protected Overrides Sub Abort(ByVal rowNum As Integer isEditing = Fals Invalidate( End Su Protected Overrides Function Commit(ByVal dataSource As CurrencyManager, ByVal rowNum As Integer) As Boolea ComboBox_Leave(Nothing, Nothing Return Tru End Functio Protected Overloads Overrides Sub Edit(ByVal [source] As CurrencyManager, ByVal rowNum As Integer, ByVal bounds As Rectangle, ByVal [readOnly] As Boolean, ByVal instantText As String, ByVal cellIsVisible As Boolean Dim value As Strin If Me.isEditing The Exit Su End I If MyBase.ReadOnly The Exit Su End I _cm = sourc _RowNum = rowNu If IsDBNull(GetColumnValueAtRow([source], rowNum)) The value = MyBase.NullTex If ComboBox.DataSource Is Nothing And Not ComboBox.Items.Contains(value) The ComboBox.Items.Insert(0, value End I Els value = CType(GetColumnValueAtRow([source], rowNum), String End I If cellIsVisible The ComboBox.Bounds = New Rectangle(bounds.X, bounds.Y, bounds.Width, bounds.Height - 2 ComboBox.Text = valu ComboBox.Visible = Tru ComboBox.Focus( Els ComboBox.Text = valu ComboBox.Visible = Fals End I End Su Protected Overrides Function GetPreferredSize(ByVal g As Graphics, ByVal value As Object) As Siz Return New Size(100, ComboBox.PreferredHeight + 1 End Functio Protected Overrides Function GetMinimumHeight() As Integer Return ComboBox.PreferredHeight + 1 End Function Protected Overrides Function GetPreferredHeight(ByVal g As Graphics, ByVal value As Object) As Integer Return ComboBox.PreferredHeight + 1 End Function Protected Overloads Overrides Sub Paint(ByVal g As Graphics, ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, ByVal rowNum As Integer) Paint(g, bounds, [source], rowNum, False) End Sub Protected Overloads Overrides Sub Paint(ByVal g As Graphics, ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, ByVal rowNum As Integer, ByVal alignToRight As Boolean) Paint(g, bounds, [source], rowNum, Brushes.Red, Brushes.Blue, alignToRight) End Sub Protected Overloads Overrides Sub Paint(ByVal g As Graphics, ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, ByVal rowNum As Integer, ByVal backBrush As Brush, ByVal foreBrush As Brush, ByVal alignToRight As Boolean) Dim str As Object Dim rect As Rectangle = bounds Dim e As DataGridFormatCellEventArgs e = New DataGridFormatCellEventArgs(source, rowNum, Me.MappingName, Me.DataGridTableStyle.DataGrid.Font, backBrush, foreBrush) RaiseEvent SetCellFormat(Me, e) str = GetColumnValueAtRow([source], rowNum) If IsDBNull(str) Then str = MyBase.NullText End If If Not e.UseBaseClassDrawing Then g.FillRectangle(e.BackBrush, rect) Else g.FillRectangle(backBrush, rect) End If rect.Offset(0, 2) rect.Height -= 2 Try If Not e.UseBaseClassDrawing Then g.DrawString(str, e.TextFont, e.ForeBrush, RectangleF.FromLTRB(rect.X, rect.Y, rect.Right, rect.Bottom)) Else g.DrawString(str, Me.DataGridTableStyle.DataGrid.Font, foreBrush, RectangleF.FromLTRB(rect.X, rect.Y, rect.Right, rect.Bottom)) End If Catch ex As Exception MsgBox(ex.Message) End Try End Sub Protected Overrides Sub SetDataGridInColumn(ByVal value As DataGrid) MyBase.SetDataGridInColumn(value) If Not (ComboBox.Parent Is Nothing) Then ComboBox.Parent.Controls.Remove(ComboBox) End If If Not (value Is Nothing) Then value.Controls.Add(ComboBox) End If End Sub Private Sub ComboBox_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles _ComboBox.SelectedValueChanged If ComboBox.Modified Then Me.isEditing = True MyBase.ColumnStartedEditing(ComboBox) End If End Sub Protected Overrides Function GetColumnValueAtRow(ByVal source As System.Windows.Forms.CurrencyManager, ByVal rowNum As Integer) As Object If Not Me.ComboBox.DataSource Is Nothing Then Try Dim obj As Object = MyBase.GetColumnValueAtRow(source, rowNum) Dim i As Integer Dim DataMember As String Dim ValueColName As String Dim DisplayColName As String Dim cm As CurrencyManager Dim dView As DataView If Me.ComboBox.DisplayMember.IndexOf(".") > -1 Then DataMember = Me.ComboBox.DisplayMember.Substring(0, Me.ComboBox.DisplayMember.LastIndexOf(".")) DisplayColName = Me.ComboBox.DisplayMember.Substring(Me.ComboBox.DisplayMember.LastIndexOf(".") + 1) Else DisplayColName = Me.ComboBox.DisplayMember End If If Me.ComboBox.ValueMember.IndexOf(".") > -1 Then ValueColName = Me.ComboBox.ValueMember.Substring(Me.ComboBox.ValueMember.LastIndexOf(".") + 1) Else ValueColName = Me.ComboBox.ValueMember End If If Me.ComboBox.DataSource.GetType.ToString.EndsWith("dsBonReception") Then cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource, DataMember), CurrencyManager) Else cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource), CurrencyManager) End If dView = CType(cm.List, DataView) For i = 0 To dView.Count - 1 If Not IsDBNull(obj) AndAlso Not IsDBNull(dView.Item(i).Item(ValueColName)) Then If obj = 340 And dView.Item(i).Item(ValueColName) = 340 Then Dim t As String t = "" End If End If If obj.Equals(dView.Item(i).Item(ValueColName)) Then Exit For End If Next If i < dView.Count Then Return dView.Item(i).Item(DisplayColName) End If Return DBNull.Value Catch ex As Exception MsgBox(ex.Message) End Try Else Return MyBase.GetColumnValueAtRow(source, rowNum) End If End Function Protected Overrides Sub SetColumnValueAtRow(ByVal source As System.Windows.Forms.CurrencyManager, ByVal rowNum As Integer, ByVal value As Object) If Not Me.ComboBox.DataSource Is Nothing Then Try Dim s As Object = value Dim DataMember As String Dim ValueColName As String Dim DisplayColName As String Dim cm As CurrencyManager Dim i As Integer Dim dView As DataView If Me.ComboBox.DisplayMember.IndexOf(".") > -1 Then DataMember = Me.ComboBox.DisplayMember.Substring(0, Me.ComboBox.DisplayMember.LastIndexOf(".")) DisplayColName = Me.ComboBox.DisplayMember.Substring(Me.ComboBox.DisplayMember.LastIndexOf(".") + 1) Else DisplayColName = Me.ComboBox.DisplayMember End If If Me.ComboBox.ValueMember.IndexOf(".") > -1 Then ValueColName = Me.ComboBox.ValueMember.Substring(Me.ComboBox.ValueMember.LastIndexOf(".") + 1) Else ValueColName = Me.ComboBox.ValueMember End If If Me.ComboBox.DataSource.GetType.ToString.EndsWith("dsBonReception") Then cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource, DataMember), CurrencyManager) Else cm = CType(Me.DataGridTableStyle.DataGrid.BindingContext(Me.ComboBox.DataSource), CurrencyManager) End If dView = CType(cm.List, DataView) For i = 0 To dView.Count - 1 If s.Equals(dView.Item(i).Item(ValueColName)) Then Exit For End If Next If i < dView.Count Then If source.Position = rowNum Then MyBase.SetColumnValueAtRow(source, rowNum, dView.Item(i).Item(ValueColName)) End If Else If source.Position = rowNum Then MyBase.SetColumnValueAtRow(source, rowNum, DBNull.Value) End If End If Catch ex As Exception MsgBox(ex.Message) End Try Else MyBase.SetColumnValueAtRow(source, rowNum, value) End If End Sub Private Sub ComboBox_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles _ComboBox.Leave If Not isEditing Then ComboBox.Hide() Exit Sub End If isEditing = False Try Dim value As Object = ComboBox.SelectedValue If Not value Is Nothing Then SetColumnValueAtRow(_cm, _RowNum, value) RaiseEvent CurrentCellDataChanged(MyBase.MappingName, value) Else EnterNullValue() RaiseEvent CurrentCellDataChanged(MyBase.MappingName, DBNull.Value) End If Catch End Try Invalidate() ComboBox.Hide() End Sub ' ' ComboBox class removing the tab key ' Public Class NoTabComboBox Inherits ComboBox Private pModified As Boolean Private KeyPressed As Boolean Private MouseClicked As Boolean Sub New() pModified = False KeyPressed = False MouseClicked = False End Sub Protected Overrides Sub RefreshItem(ByVal index As Integer) MyBase.RefreshItem(index) End Sub Protected Overrides Sub SetItemsCore(ByVal items As System.Collections.IList) MyBase.SetItemsCore(items) End Sub Protected Overrides Function ProcessKeyMessage(ByRef m As System.Windows.Forms.Message) As Boolean If m.Msg = &H101 Then '&H101 = WM_KEYUP If m.WParam.ToInt32 = 9 Then '9 = TABKEY Return True End If End If Return MyBase.ProcessKeyMessage(m) End Function Public ReadOnly Property Modified() As Boolean Get Modified = pModified End Get End Property Protected Overrides Sub OnClick(ByVal e As System.EventArgs) MouseClicked = True End Sub Protected Overrides Sub OnSelectedValueChanged(ByVal e As System.EventArgs) If MouseClicked Or KeyPressed Then pModified = True MouseClicked = False KeyPressed = False Else pModified = False End If MyBase.OnSelectedValueChanged(e) End Sub Protected Overrides Sub OnKeyPress(ByVal e As System.Windows.Forms.KeyPressEventArgs) If Char.IsLetterOrDigit(e.KeyChar) Then KeyPressed = True End If MyBase.OnKeyPress(e) End Sub End Class End Class Tag: question about referesh Tag: 67516
  - 22
    - localization to db Has anybody already tried to store the localized properties in a db instead of using satelite assemblies? Actually my question is, how do I change the "new ResourceManager(typeof(...))" at the beginning of InitializeComponent of a Form to "new MyResourceManager(...)". I actually tried it by suplying my own CodeDomSerializer but somehow only got propertyassignment-code and can't find the actualy code dom code for the new MyResourceManager(...) Has someone an idea what I'm missing? regards Chrs Tag: question about referesh Tag: 67515
  - 23
    - PrintPreviewDialog problem? I'm attempting to print graphics to a printer using a PrintPreviewDialog. The PrintPreviewDialog correctly displays what I intend to print, but when I press the Print button on the PrintPreviewDialog the printer spits out a single blank page regardless of how many pages are displayed in the dialog Below is my button click event. The PrintDocument object has not been modified after dropping it onto the form private void mniPrint_Click(object sender, System.EventArgs e tr PrintPreviewDialog ppd = new PrintPreviewDialog() ppd.Document = printDocument ppd.ShowDialog() catch (Exception ex // error handle Are there any known issues with this control Thanks Todd. Tag: question about referesh Tag: 67514
  - 24
    - List of activated fonts does not include shortcut activations Our font management tool, Suitcase, activates fonts dynamically by creating shortcuts in the Windows font folder. Using System.Drawing.Text.InstalledFontCollection to get the list of font families from the system yields only the fonts whose files are physically in the system font folder- not the shortcuts. None of our applications have any problems using the fonts activated by shortcuts. Can anyone recommend another way to retrieve the complete list of fonts? Thanks for any suggestions Josh Usovsk Code System.Drawing.Text.InstalledFontCollection installedFonts = new System.Drawing.Text.InstalledFontCollection() System.Drawing.FontFamily[] fams = installedFonts .Families; Tag: question about referesh Tag: 67512
  - 25
    - Registeresd JIT debugger is not available I have created a setup file to execute a C sharp application developed using VS.NET 2003.. I want to execute the application on a client computer (running NT 4.0), I have installed the latest microsoft .NET framework 1.1 While I am trying to execute the exe file on the client computer I am getting an error message.. Application has generated an exception that could not be handled. Process id=0x1a3(419), Thread id=0x194(404) Can anyone help me to solve this problem? Thanks. Tag: question about referesh Tag: 67511
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  - 1
    - TreeView Nodes I have created a treeview control on my form. Each node has a checkbox next to it. I want to be able to click the specific node and open the correspond Word document. For example, If I click Test1 node on my treeview it will bring me to the Test1.doc document in Word. I tried several ways but none of them work. I got message saying that "The argument is out of the range". I appreciate if someone could help! Thanks in advance. Sincerely KaiTi Yen Tag: question about referesh Tag: 67510
  - 2
    - TreeView and ObjectDisposedException Hi All! I have an application that opens form with TreeView. I want to close form by AfterSelect Event: private void MyTreeView_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e) { this.Close(); } But everytime when I clicking on TreeView Item, I get following error: An unhandled exception of type 'System.ObjectDisposedException' occurred in system.windows.forms.dll Additional information: Cannot access a disposed object named "TreeView". Any ideas? Thank you, Vitaly Sedov Tag: question about referesh Tag: 67500
  - 3
    - TreeView and ObjectDisposedException Hi All! I have an application that opens form with TreeView. I want to close form by AfterSelect Event: private void MyTreeView_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e) { this.Close(); } But everytime when I clicking on TreeView Item, I get following error: An unhandled exception of type 'System.ObjectDisposedException' occurred in system.windows.forms.dll Additional information: Cannot access a disposed object named "TreeView". Any ideas? Thank you, Vitaly Sedov Tag: question about referesh Tag: 67499
  - 4
    - File Association How do I go about (programmatically) associating files created by my App with a particular icon, and how do I ensure that the app is run and loaded with a file when double-clicked - all in the same way that an App like MSWord does it Thanks in advanc Rich Tag: question about referesh Tag: 67495
  - 5
    - WinForm App and TaskManager Hi, I've a winform app and want to start the program without beeing visible in the task manager on a Windows ME box. I've seen some programs that start using the "Run" option in the registry and not appearing in the task manager. These programs are written in VC++ and I'm wondering how can I do that for my C# application? If this is not possible with an UI, can I write a background process which starts silently to monitor the other app? Remember, we're talking about a ME/98 box and have no services available. The background is that I want to prevent a user from killing my monitoring software in the task manager. Thanks for your ideas, Joerg Tag: question about referesh Tag: 67493
  - 6
    - Controlling program flow in VB.NET I am a beginner in using VB.Net although I do have experience in VB6. It always seems that I have to keep my startup object in memory otherwise the application will just end. Even if I have transfered control to another form. It is irritating to have to keep my splash screen in memory just to make sure that my application will continue running. Can anyone help me? I'm going crazy already!! Tag: question about referesh Tag: 67483
  - 7
    - How to get instance of control by name Hi, imagine having an INI-file with entries like: # key=Control / value=Text property of control controlA=bla bla bla controlB=bla bla bla controlA and controlB are different controls of types like TextBox, etc. Closing form will write INI-file, storing control names and text property of these Loading form will read INI-file and set text value of corresponding control quite a simple task, if you'll do it as follows: .... switch (iniControl) { case "controlA" : controlA.Text = iniValue; break; ... } ... But what about a more generic solution? Assuming that the key-value of INI-file is a known control, an instance within the form, what about a solution like: - get instance of the control by its name - set value from INI-file to Text-property Tried to solve this by using reflection - something like GetType(iniControl), but never suceeded. What do you think how this could be solved? Thanks and regards - Jari Tag: question about referesh Tag: 67480
  - 8
    - C# GDI+/WindowsForms Learning-Project started Hi I'm started a learning project on http://sharpgrid.sourceforge.net. Learning item is a GDI+ - based entirly written in c#. Please check code and give improvements Than Alex Tag: question about referesh Tag: 67479
  - 9
    - Search for Files with System.IO.DirectoryInfo.GetFiles() I am trying to locate all image files in a particular folder. I use the System.IO.DirectoryInfo to open information about the specific directory. I am then trying to query all of the images in that folder whether the extension be .jpg, gif, or bmp. So far I have not had any luck passing more than one extension to 'GetFiles(String searchPattern). Is there a way to pass more than one extension to this method? Also is there a better way to search for files? Something more along the lines of FindFirstFile from the Win32 API? Thanks for the help Brian Tag: question about referesh Tag: 67472
  - 10
    - Dll Import problem ** I forgot to ask one more thing, Just see the last few lines. I have a Dll written in C. And I want to Import that Dll into my C# program and use a function in the Dll. In a previous newsgroup article I saw that I may need to wrap the Dll in a C++ .NET class and then use that in my C# application. But when I run my program I get an error saying System.IO.FileNotFoundException: File or assembly name "abc", or one of its dependencies, was not found. File name: "abc" abc is my wrapper project class library. here is my wrapper class is given below. The lib name is wdll.lib and the header is dll.h. #include "dll.h" #pragma comment(lib, "wdll.lib") namespace MyWrapper { public __gc class Class1 { public: static void myfunc1(long JobNo) { _libmain(JobNo); } static char * myfunc2(void *vJobRec, short field, short subfield) { return (GETJF_NAME( vJobRec )); } }; } Here is the actual dll header file. extern "C" { void WINAPI _libmain ( long JobNo ); void * WINAPI _getjobfield ( void *vJobRec, short field, short subfield ); }; ..... and here is where I am calling it. using MyWrapper; unsafe { Class1.myfunc2(null,0,0); } It throws the exception here, System.IO.FileNotFoundException: File or assembly name "abc", or one of its dependencies, was not found. File name: "abc" ________________________________________________ So then I tried to acces the Dll in a more traditional way , but would result in the same error. Here is just a simple console application that I did, using System; using System.Runtime.InteropServices; using System.IO; using System.Reflection; using MyWrapper; namespace test { class Class1 { [DllImport("kernel32.dll", CharSet=CharSet.Auto)] static extern IntPtr LoadLibrary(string lpFileName); [DllImport("wdll.dll")] public static extern IntPtr _getjobfield([MarshalAs(UnmanagedType.LPStr)] string s, short i1, short i2); [STAThread] static void Main(string[] args) { // Esure current directory is exe directory Environment.CurrentDirectory = Path.GetDirectoryName( Assembly.GetExecutingAssembly().Location ); string dllPath = Path.GetFullPath( @"C:\SoftwareDevelopment\testing\testing\test\test" ); LoadLibrary( dllPath ); Console.WriteLine( _getjobfield(null,0,0) ); } } } ******* ****************************************************************************** And in the previous mail I for got ask one more thing since _getjobfield returns a char pointer how can I read that value. currently what I am trying to do is unsafe { Class1.myfunc2(null,0,0); } but when i DO THIS unsafe { char * p = Class1.myfunc2(null,0,0); } It say's can not convert sbyte* to char*. The thing is that I am sending char* so I do not know where sbyte comes from But it throws the exception, Can any one help. Thanks Tag: question about referesh Tag: 67470
  - 11
    - Dll Import problem I have a Dll written in C. And I want to Import that Dll into my C# program and use a function in the Dll. In a previous newsgroup article I saw that I may need to wrap the Dll in a C++ .NET class and then use that in my C# application. But when I run my program I get an error saying System.IO.FileNotFoundException: File or assembly name "abc", or one of its dependencies, was not found. File name: "abc" abc is my wrapper project class library. here is my wrapper class is given below. The lib name is wdll.lib and the header is dll.h. #include "dll.h" #pragma comment(lib, "wdll.lib") namespace MyWrapper { public __gc class Class1 { public: static void myfunc1(long JobNo) { _libmain(JobNo); } static char * myfunc2(void *vJobRec, short field, short subfield) { return (GETJF_NAME( vJobRec )); } }; } Here is the actual dll header file. extern "C" { void WINAPI _libmain ( long JobNo ); void * WINAPI _getjobfield ( void *vJobRec, short field, short subfield ); }; ..... and here is where I am calling it. using MyWrapper; unsafe { Class1.myfunc2(null,0,0); } It throws the exception here, System.IO.FileNotFoundException: File or assembly name "abc", or one of its dependencies, was not found. File name: "abc" ________________________________________________ So then I tried to acces the Dll in a more traditional way , but would result in the same error. Here is just a simple console application that I did, using System; using System.Runtime.InteropServices; using System.IO; using System.Reflection; using MyWrapper; namespace test { class Class1 { [DllImport("kernel32.dll", CharSet=CharSet.Auto)] static extern IntPtr LoadLibrary(string lpFileName); [DllImport("wdll.dll")] public static extern IntPtr _getjobfield([MarshalAs(UnmanagedType.LPStr)] string s, short i1, short i2); [STAThread] static void Main(string[] args) { // Esure current directory is exe directory Environment.CurrentDirectory = Path.GetDirectoryName( Assembly.GetExecutingAssembly().Location ); string dllPath = Path.GetFullPath( @"C:\SoftwareDevelopment\testing\testing\test\test" ); LoadLibrary( dllPath ); Console.WriteLine( _getjobfield(null,0,0) ); } } } But it throws the exception, Can any one help. Thanks Tag: question about referesh Tag: 67468
  - 12
    - Windows XP Button vs Framework window form button Hi, How could I create the same button and tab of windows XP in vb.net i found that the button that I create in vb.net is different with windows xp one. anyone know how to do that ? pls advise me Tag: question about referesh Tag: 67465
  - 13
    - Font Class - a big performance eater? I was curious if anybody else noticed this fact. Everytime you use the font class, especially creating multiple instances of the Font class in an iteration, there is a significant performance hit. The way I noticed was due to a bug in my code. I have a list class where each item is a separate object with various properties, among which a Font. At some point I wanted to test my list with a lot of items so I made a loop that was creating like 10000 items, but I used a constructor that passes a font too and I used new Font(...). To my surprize and astonishement, it took an average of 7 milliisecond for the framework to create each item. I got into a sort of panic, as I thought that my event model was too extensive or I forget to dispose some objects. It turned up that when I removed the Font object from the costructor with a null, the average time went from 7 milliseconds to 0.02 miliseconds!! That is like 350 times faster... Now I am even worried about any place that I might use the font constructor. Did anybody noticed this behavior in other instances? Does anyone know an optimized way of using fonts thank you Iulian Tag: question about referesh Tag: 67459
  - 14
    - Changing the default border color/appearrance of WindowsForms Short of globally changing the appearance of a WindowsForm's border color, appearrance...(like changing the color scheme in Display Properties), is there a way to change simple things like the border color at the application level Michael Tag: question about referesh Tag: 67457
  - 15
    - No-Touch Deployment app.config problem I'm having a very frustrating problem with a no-touch-deployed application and its app.config file. When it loads from a remote server, it cannot get any settings from the app.config file. In trying to locate the problem, I have tested the following things: 1. The application works flawlessly when deployed via XCopy. 2. The application works flawlessly when accessed on my own machine via http://localhost. 3. The app.config file is accessible. I can browse to it manually and download it. 4. The app.config file is being downloaded by the application and stored in the IE browser cache, but is still not accessible to the application. 5. Another application - a simple one for testing this situation - exhibits exactly the same behaviour. I have already removed the *.config mapping from IIS for the relevant directory, and, just like before, the app.config is still accessible. I have enabled anonymous access. Just like before, the app.config is still accessible. I have thus concluded that the problem is not with my server configuration. Is anyone able to offer any insight into the situation? Anyone else encountered this problem? John N Tag: question about referesh Tag: 67451
  - 16
    - capturing how a form was closed I have a 2 form application - the first form opens the second form, which allows a user to create a file. The first form then needs to do something based on how the form was closed. how the code looks Dim tf As New frmNewLeague tf.ShowDialog() If < tf closed using save button > Then do stuff else do other stuff End If Is using a global variable the best way, or can you cature how a form is closed? Derruck Tag: question about referesh Tag: 67448
  - 17
    - Radiobutton databinding: Hi, I have a radio button group which I want to bind to a table column whose value is a string. Based on the string value, I want to checkmark one of the radio buttons. Here is my code in an attempt to do this. But it fails. The events don't even fire. I don't know what I am missing. All other databindings (to text boxes and combo boxes even check boxes) seem to work fine. But then, those controls don't need datatype conversion either. Can somebody please help? CatalogsDV is a Dataview of my datasource. And I have a currencyManager that positions the data. I have no problems there since other controls seem to work. Binding b2b = new Binding("Checked", catalogsDV, Const.CATALOGTYPECOLUMN); b2b.Format += new ConvertEventHandler(FormatCatalogType); b2b.Parse += new ConvertEventHandler(ParseCatalogType); this.rdbtnB2B.DataBindings.Add(b2b); // // // // private void FormatCatalogType(object sender, ConvertEventArgs e) { if (e.DesiredType != typeof(string)) return; string ctype = (string)e.Value; if (ctype == "B2B") this.rdbtnB2B.Checked = true; else if (ctype == "B2C") this.rdbtnB2C.Checked = true; } private void ParseCatalogType(object sender, ConvertEventArgs e) { if (e.DesiredType != typeof(bool)) return; bool ctype = (bool)e.Value; if (ctype == true) e.Value = "B2B"; else if (ctype == false) e.Value = "B2C"; } I am confused with the complexity of Databinding. But trying to learn. I assume the above event methods are correct, at least logically. I have placed breakpoints inside both the above events. But they don't seem to fire at all. Can somebody please help? Babu. Tag: question about referesh Tag: 67430
  - 18
    - data grid Control Using vb in vstudio .net I have implement the datagrid control in the application this is the situation I fill my datagrid with data and the scroll of the data grid not appear to be anable but it is enable mydatagrid.enable = "true", but the scroll disappear for any reason. see de jpg http://www.properlyfit.com/test.html did some body know why is this happening ? Tag: question about referesh Tag: 67429
  - 19
    - Tables don't show in drop down of tablestyle in property window of datagrid Ok I'm working on a custom IDE though it's using alot of the same technologies as the VS.Net IDE. I drag and drop the datagrid onto the form (root component) and there is a dataset with tables in the component tray. I then just set the datasource to the dataset and then the datamember to the table I desire. I then open the tablestyles and add a new one and hit the mappingname and hit the drop down and nothing shows up. What I need to find out is how the datagrid populates that list, something somewhere in my IDE isn't allowing the datagrid to populate the dropdown list with the tables in the dataset. So does anyone have any idea how that list gets populated Joe Tag: question about referesh Tag: 67427
  - 20
    - Capture Lost I'm about to modify the message loop in my winform to process the WM_CAPTURECHANGED message and fire an event, before I do I would just like to check there isn't already an event present for this? Haven't noticed one so far, but it seems strange to have it left out! :) thanks, n! Tag: question about referesh Tag: 67426
  - 21
    - Tab Control/Web Browser Control Flicker Hi, I have a tab control with a web browser control embedded in the first tab page. Whenever I resize the tab control the tab itself and web browser control flicker like crazy. Is there anyway to eliminate this flicker? Thanks in advance. Justin Tag: question about referesh Tag: 67424
  - 22
    - queueing messages Hi, Ok, since I began writing this post, I have figured out the majority of my problem. I started out without a clue about how to use messages in my application (not referring to System.Messaging, but to good old windows messages). I want a Win32 application that runs without a window. I figured out how to add a message filter to the application before calling Application.Run(). That solves the problem of catching the message. Now I cannot, for the life of me, find any references to how to put a message on the application queue. Any help would be greatly appreciated. Thanks in advance, Chris Tag: question about referesh Tag: 67417
  - 23
    - Form.AutoScroll Property .NET Framework Class Library documentation on Form.AutoScroll Property #1- If this property is set to true, scroll bars are displayed on the form if any controls are located outside the form's client region #2- Additionally, when autoscrolling is on, the client area of the form automatically scrolls to make the control with input focus visible. Q: How can I avoid #2 from happening? (override the input focus event?). I do not want the form to recenter when I click partly visible controls Thanks in advance for your help mc Tag: question about referesh Tag: 67416
  - 24
    - How to develop user-definable/configurable UIs using Windows Forms and ADO.NET? Hi, I'd like to create a data entry application in which users are able to customise the app and it's UI by adding/removing fields from the data entry form(s), changing the layout of the fields, or changing caption text. Are there any samples that show how this can be done with Windows Forms and ADO.NET?. Or perhaps books, articles, blogs or FAQs that cover this scenario? Cheers, Kunle Tag: question about referesh Tag: 67409
  - 25
    - Long texts in ComboBox's Items Hi, I have a control that holds a ComboBox. When the ComboBox gets filled the text are too long, so, it is possible to read just the half part of the text. I would like to show the whole text in a box (like the tooltipbox) while the user moves over the ComboBox's Items. Does anyone can share some code to do this? Thanx Boris Tag: question about referesh Tag: 67406

My problem is like this, I draw my form using d3d function, it draws
well. But the problem is everytime When call form->Refresh to ask the form
to be redraw, it will use the forms's backcolor to clear the form first.
This make the image on the form blinking. Is there anyway to disable this
clear? Thx!

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