RTL Treeview Control Problem

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  - 1
    - Controls of a form Hello I have a form that containes a lot of controls including panels those contain other controls. Is there a way to simply get all contained controls either directly or indirectly through other containers such as panel or GroupBox controls? Tag: RTL Treeview Control Problem Tag: 104999
  - 2
    - How to trap Application Form Change event? Hello, I had to disabled Form Inheritance because bug in VS 2005 in inheritance and localization. ANy suggestion how to trap form when it is to display or something simmiliar, in order to set common properties for all forms. For example: (Not to show in taskbar) thanks MilanB Tag: RTL Treeview Control Problem Tag: 104998
  - 3
    - A little help on understanding properties ?? Hi, I'm currently working on an scenegraph editor. I have a treeview, and when I select a node, it shows its properties in a propertygrid. Each node has a link to the scenegraph node, and I override the property accessors to modify the scenegraph node when the user change something in the propertygrid. For example : // this is a custom 3 dimensional vector object. [TypeConverterAttribute(ExpandableObjectConverter::typeid)] public ref struct CVector3 { CVector3(void) { x = 0.0f; y = 0.0f; z = 0.0f; } CVector3(float X, float Y, float Z) { x =X; y = Y; z = Z; } property float x; property float y; property float z; virtual String ^ ToString(void) override { return("" + x + "; " + y + "; " + z); } }; Now, in the treeviewnode, I have something like : property CVector3 ^ Position { void set(CVector3 ^ value) { // when the Position property is modified, I want // to send the new position to the scenegraph node. m_pNode->SetPosition(value->x, value->y, value->z); } CVector3 ^ get(void) { // I always get the position from the scengraph node. return(gcnew CVector3(m_pNode->GetPositionX(), m_pNode->GetPositionY(), m_pNode->GetPositionZ()); } } where m_pNode is a pointer to the associated scenegraph node. Now, the problem is that when I expand the Position property, and modify the x component, the CTreeViewNode::Position::set() method is not called. I overrided the x, y and z accessors in the CVector3, and they are correctly called, but I need to "notify" my CTreeViewNode that its Position property changed, and I really don't know how to do that :/ If anyone know how to do this, I would really appreciate a little help ^^ And I apologize for my english :/ If you didn't understand my problem, tell me, I'll try to be a little clearer ^^ Have a good day. Damien Tag: RTL Treeview Control Problem Tag: 104996
  - 4
    - Arrow keys work in opposite direction in panel Hi, I have a panel in my project (C# .NET 2003). I have multiple radio buttons placed in it. When I press UP Arrow key, The focus in the screen moves one radio button DOWN. ofcourse if I press DOWN Arrow key the focus in the screen will move one radio button UP. I guess this is because of the way the radio button controls are arranged in the panel control collection. Could anyone suggest a way to override this behaviour in a way that when pressing UP Arrow key the focus in the screen will move one radio button UP and so on... TIA Kuchuk Tag: RTL Treeview Control Problem Tag: 104995
  - 5
    - Scollable property in Listview class breaks column headers When setting the Scrollable property of a listview and resizeing it the headers will be painted wrongly. This defect is documented in MSDN as: In versions of the .NET Framework prior to version 2.0, the column headers were not painted correctly when setting this property to false and resizing the control to make it larger. To work around this issue, set this property to true in a ResizeBegin event handler and set it back to false in a ResizeEnd event handler. I honestly don't understand this workaround mentioned. The ResizeBegin and ResizeEnd event are available only on .NET framework 2.0 according to MSDN. Does this mean the provided workaround is valid only in versions of .NET framework where it is not needed? Does anyone have a .NET framework 1.1 workaround around? Tag: RTL Treeview Control Problem Tag: 104994
  - 6
    - Override OnPaint vs Handle Paint event I am creating a set of User Controls with a lot of custom painting. Is there a performance hit in doing the painting by handling the Paint event versus putting the painting code in an overridden OnPaint method? I will be creating a a few thousand instances of the custom control. Tag: RTL Treeview Control Problem Tag: 104993
  - 7
    - Resizing Controls that are contained in a docked Control I'm surprised that I'm only know discovering this problem, but I suppose I've never needed to change the dimension that is opposite to the docking of the control. That is, when I've docked a control to Top, I've never needed to change its height and vice-versa. But, now I would like to do this and I'm not sure what the "right way" is to perform this. Should I just add an extra container (panel, usercontrol, etc) around the control whose dimension I want to change. For example, if I have a UserControl whose width I would like to set manually and which happens to be set to Dock to Top. Should I just house it in another UserControl/Panel/Etc and then not Dock it in that container? Thanks, Novice PS If my problem is not abundantly clear - create a windows application, Add a Panel to your Form, then in the Contructor - put this: for (int i = 0;i < 50; i++) { Label label = new Label(); label.Dock = DockStyle.Top; label.Text = "MyTextMyTextMyTextMyTextMyTextMyTextMyText" + i; label.Width = 1000; label.Height = 1000; //label.Size = new Size(1000,300); panel1.Controls.Add(label); } for (int i = 0;i < panel1.Controls.Count;i++) { Console.Out.WriteLine("control width: "+panel1.Controls[i].Width+" control height: "+panel1.Controls[i].Height); } Then notice how the controls all get set to a height and width of 1000. Then try changing the panel1 to be docked - either to Fill or just one side and you'll see how the dimension changes you try to make will be suppressed. Tag: RTL Treeview Control Problem Tag: 104983
  - 8
    - q; DirectoryInfo.Exists DirectoryInfo.Exists(myDir) gives an exception if I run the exe though a mapped drive, what might the problem be? Tag: RTL Treeview Control Problem Tag: 104981
  - 9
    - 1.1 datagrid Column Styles I am trying to change the column styles i na datagrid, ive been over exampel after example and cannot seem to figure it out. I am however quite close the following code works but the datagrid onyl displays one column in the datagrid and its the last one that had a column style applied to it 'make table style for the datagrid Dim tst As New DataGridTableStyle tst.MappingName = dsInspections.Tables(3).TableName tst.BackColor = Color.OldLace tst.AlternatingBackColor = Color.OldLace tst.HeaderBackColor = Color.Wheat tst.HeaderForeColor = Color.SaddleBrown 'add column styles for each column Dim col1 As DataGridColumnStyle = New DataGridTextBoxColumn col1.MappingName = "ID" col1.Width = 50 tst.GridColumnStyles.Add(col1) Dim col2 As DataGridColumnStyle = New DataGridTextBoxColumn col1.MappingName = "Item" col1.Width = 100 tst.GridColumnStyles.Add(col2) Dim col3 As DataGridColumnStyle = New DataGridTextBoxColumn col1.MappingName = "Description" col1.Width = 220 tst.GridColumnStyles.Add(col3) Dim col4 As DataGridColumnStyle = New DataGridTextBoxColumn col1.MappingName = "Quantity" col1.HeaderText = "QTY" col1.Width = 220 tst.GridColumnStyles.Add(col4) 'add table style to the datagrid dgMods.TableStyles.Add(tst) dgMods.Refresh() Tag: RTL Treeview Control Problem Tag: 104979
  - 10
    - How to create a TreeView node with no image? Hi, I have a TreeView with an associted imagelist. I want some nodes to have no icon. How do I do this? How can I create an "empty icon"? -- Thanks in advance, Juan Dent, M.Sc. Tag: RTL Treeview Control Problem Tag: 104978
  - 11
    - .NET 2.0 Webbrowser control I am using a Webbrowser control in a Windows form application. I need to be able to read the server variables values. This is very simple in web apps (request.servervariables()) but i am unable to do so using the webbrowser control. Am i missing something or is it not possible with the Webbrowser control. I would very much appreciate any help in this matter Thanks MB Tag: RTL Treeview Control Problem Tag: 104977
  - 12
    - HWND - What can I do with it? I am working on extending an NSIS installer and I want to use .NET windows forms controls within it, can I create a .NET control on the NSIS parent form with just the HWND of the parent form? For example, I want to create a .NET listview on a form in NSIS, is this possible? I am pretty ignorant as to the capabilities of the Windows API for things like this and would appreciate any comments or help you could offer. Thanks! Tag: RTL Treeview Control Problem Tag: 104973
  - 13
    - custom gridviw column Please help, easily reproduced: 1. Create a class inheriting from System.Windows.Forms.DataGridViewTextBoxColumn . 2. Add a simple property to that class (see below for the code I used). 3. Add a column of that type to a DataGridView. 4. Try to set the property you just created using the "Edit Columns" dialog at design time. 5. Close and reopen the dialog. The value is gone! Am i doing something wrong? Setting the value in code works. Thanks for any help. Here's the class i used: Public Class MyColumn Inherits System.Windows.Forms.DataGridViewTextBoxColumn Private _MyProperty As String <System.ComponentModel.Category("MyProperties")> _ Public Property MyProperty() As String Get Return _MyProperty End Get Set(ByVal value As String) _MyProperty = value End Set End Property End Class Tag: RTL Treeview Control Problem Tag: 104969
  - 14
    - BackgroundWorkerProcess and GUI updates (progress windows) Hi, I'm writing a little application that scans a large number of media files for processing. The main application currently uses a backgroundworkerprocess to perform the scan. Each media file has meta data extracted and is added to one of a range of lists (pseudo-queues) for later processing. This is all fine. But, I want to provide more feedback to the end user as to progress as the process takes a considerable time. To do so I have implemented a new modal dialog which outputs counts on queues, and the current location in the filesystem that the scanning has reached. However, I have problems with this. Firstly, I tried creating the new progress window in the main form class, that then failed as when I tried to update the labels and controls on the progress window I could not as the window was created in another thread. Then, I tried to create the progress window within the method that the backgroundworkerprocess thread runs. This did not allow me to create a modal dialog as I could not pass "this" into the constructor, because the variable was not created in the same process. I don't really want to move the logic into the progress window, because I need to deal with the queues when populated. This is just all seeming to be too much of a mess. Updating a progress window is such a COMMON thing that applications do all the time. There /must/ be a tried and tested pattern for doing so, I can't beleive that .NET doesn't have a nice simple way to do this. However, I've failed to find it so far. I'm new to .NET and winforms. I've done some limited GUI programming in Delphi and a tiny bit in VB6, I'm primarily an enterprise web application developer. i.e. I can code well in the web paradigm, but my thick client gui stuff is almost completely non-extant. Any pointers to RTFM greatly accepted. (Oh, .NET 2.0 in C# Express 2005) Cheers, Mike Tag: RTL Treeview Control Problem Tag: 104968
  - 15
    - PAE at WindowsXP64edition. Dear all I think Windows64edition has a limitation of 2G memory for each software. WindowsXP has 4G memory limitation problem and 2G limitation of each software. I have 2 WindowsXP 64edition computers. One has 8G memory. Another one has 12G memory. Even if I am using such big memory machine, "memory Out" shows me on a screen. I have used boot .ini file on WindowsXP, and get PAE. Is there anyone who knows how to expand the 2G memory for each software??? Akihiko Japan Tag: RTL Treeview Control Problem Tag: 104964
  - 16
    - Font size based on the client rectangle of the control. Hi, I have a control that render text. This is done in OnPaint() override by drawing the text. When the control is resized, the text inside it should also be resized according to the size of the control. Either height of the text or width of the text or both need to be resized. So I need to determine the font size based on the current client rectangle. How do I do this? Is there any other way of resizing the text? I am using .Net 2.0. Your help is highly appreciated. Thanks in Advance. Regards Kiran Tag: RTL Treeview Control Problem Tag: 104962
  - 17
    - Howto create semi-modal popup form in MDI application I'm creating an MDI application in C# 2.0. I need to show a popup form (similar to a dialog) on an MDI child form, such that the popup form is modal to the MDI child form, but without blocking other MDI child forms and obviously without blocking the main application. I know that I can't use Form.ShowDialog() as it disables all windows on the thread, but I'm hoping there's a way to simulate the desired behavior. The popup form has to be associated or parented to the MDI child form so that the user can switch between the open child forms. More than one MDI child form can show a popup form at the same time. Hope someone out the has a suggestion... Regards Henrik Rasmussen Tag: RTL Treeview Control Problem Tag: 104950
  - 18
    - Windows Forms Disabled Text Hi, I'm trying to modify the tabCrontrol so I can enable/disable tabs. I've got it all working except it doesn't look like I want it to. When a tab is disabled I want the text to look like a disabled button's text (indented grey?). Is there a simple way to do this (is there a "disabled" font??) or do I have to overlay the grey text over the top of the white?? Thanks Gareth Tag: RTL Treeview Control Problem Tag: 104949
  - 19
    - Minimized Forms won't restore Hi, I have a Windows Forms App, written in c# in VS2005 Professional. The application requires the user to log on, and after a period of inactivity they are automatically logged off. The Logon is done on a seperate form, which then shows the main form. The application requires 1024 x 768 resolution (due to graphics), and so if the screen resolution is set to that it runs with no borders / title bars etc. Otherwise it runs normally in a window. I have a problem, in that if the user minimizes the main form, then when they are logged out due to inactivity, the logon form becomes shown minimized. The problem comes when the user then wants to display that form in order to log back on. If the app is running full screen (no title bar etc.) then it will not restore and remains firmly fixed to the task bar. Has anyone seen this problem before and is there a solution? Thanks. Paul Tag: RTL Treeview Control Problem Tag: 104948
  - 20
    - Adding a UserControl to the Component Tray I have a base UserControl class - DataModule - to which I have added a SqlConnection and a DataSet. The idea is that users will build on this base class, adding their own SqlCommands as needed, but always using the same connection/dataset (i.e. a simple API). The reason for using a UserControl, is to allow users to drag-and-drop SqlCommands etc. from the Toolbox directly onto the design area; they can then select those objects from the Component Tray and edit their properties. These subclasses of DataModule will then be placed onto another UserControl containing a DataGridView, and the user will connect the DataModule's DataSet to the grid's DataSource. So far, I've got the above working great. However, when I drop a DataModule subclass onto a UserControl, the DataModule is placed on that UserControl's canvas. Because DataModule itself isn't meant to be used as a visual component, it makes more sense for it to appear in the Component Tray instead; however, I can't seem to get this to work. (I've tried the DesignTimeVisible attribute, as well as others.) >From what I've read, it seems that any component that's a subclass of Control cannot be displayed in the Component Tray. Is this correct, and if so, is there any way to work around this? Also, if you think this implementation is incorrect, please tell me! (I am using .NET 2.0 with Visual Studio 2005 Professional.) TIA. Tag: RTL Treeview Control Problem Tag: 104946
  - 21
    - How can I control positioning of child windows in an MDI form? Hello I have a question about CHILD forms in an MDI form. How can I have a neat positioning of child windows in an MDI form? When I open a new child window in my MDI form it is opened in a new cascading position but when I opens a lot of forms, it goes out of the borders of the MDI form and a scroll bar appears in the MDI form. Is there a neat positioning of child windows in an MDI form? Any help (or link) is appreciated. Hamed Tag: RTL Treeview Control Problem Tag: 104942
  - 22
    - MDI Form Position Hello Two questions about positioning: When I run my MDI application developed by VS.NET 2003, the MDI window is opened in a new place and after some run again and again, it opens in a position that some borders of MDI form goes out of the desktop. The WindowState of MDI form is in Normal state. Q1: How can I open my form in a position that the form is not gone out of desktop Q2: How can I position in the same position as previously opened in the last run. Thanks in advance. Hamed Tag: RTL Treeview Control Problem Tag: 104941
  - 23
    - How to suppress new-data row in datagrid with parent-child data Hi All, I have a form set up with a data source which has a parent-child relationship. The parent table is bound to a combo box, and the child to a datagrid. I want the datagrid to show the child records for the parent selected in the combo. I know how to do this, and it all works fine. But I cannot suppress the datagrid row with the * against it, where a new row can be entered. >From what I have read, the way to do this is to make the data source for the datagrid a DataView, with the AllowAddNew property set False. That's fine, but as soon as I do that I lose the parent-child behaviour - catch 22! Is there a way to suppress the new-data row in the grid, AND preserve the parent-child behaviour I need? It sure as hell isn't intuitive! Tag: RTL Treeview Control Problem Tag: 104940
  - 24
    - FileDialog (SaveFileDialog & OpenFileDialog) does not add extension I use FileDialog's quite often, but this one thing really bothers me: The FileDialog.AddExtension property is supposed to control whether the extension of the selected filter is automatically appended to the filename or not, also depending on the CheckFileExists property (according to http://msdn2.microsoft.com/en-us/library/system.windows.forms.filedialog.addextension.aspx). However, with FileDialog.AddExtension set to true and regardless of the state of FileDialog.CheckFileExists propetry, the extension is NOT appended to the filename. Can someone please help me why this is? (For information, I used the filter "C-Sharp Files|*.cs|Text Files|*.txt|All Files|*.*" and DefaultExtension "cs" if it makes any difference) Tag: RTL Treeview Control Problem Tag: 104932
  - 25
    - .NET Framework 3 Can Framework 3 be used with VB Express? Tag: RTL Treeview Control Problem Tag: 104929
- Next
  - 1
    - Form.TopMost behaviour I'm a bit confused regarding the behaviour when setting the Form.TopMost property. If setting the property to 'true', does it make the form top-most of all windows in all applications, or only the form's application ? Searching google, I've found people claiming it's enough to set TopMost in order for the form to be top-most of all windows in the system, and other say that a call to Win API's SetWindowPos (with HWND_TOPMOST as a parameter) is needed. So, which is correct? Tag: RTL Treeview Control Problem Tag: 104928
  - 2
    - how to show a form or process command line args Hello. I would like to write a console application and windows form application all in one. If there are command line arguments, then I would treat it as a console app. Otherwise, I would display a form. I'm having trouble doing this. Any ideas?? Here's what I did so far: 1) Create a new console application 2) In the Main, i use this code, but it only briefly displays the form, then it goes away. The code looks like this: Sub Main(ByVal args() As String) If args.Length = 0 Then Dim frm As New frmMain frm.Show() frm.Focus() Else '.... End If End Sub Thank you in advance for your response! Steve Tag: RTL Treeview Control Problem Tag: 104925
  - 3
    - Consuming JavaScript events fired in AxWebBrowser control I have an AxWebBrowser control in a C# app. I'd like to have my C# app capture, say, an OnClick event of an HTML element in the AxWebBrowser document. Is this possible? TIA Jared Tag: RTL Treeview Control Problem Tag: 104923
  - 4
    - Changing default header/footer when printing from AxWebBrowser I've wrapped the web browser control in a user control, and I'm able to print using the execCommand("Print") method. However, this puts "Page X of Y" in the header, and "about:blank" and the date in the footer. How can I override the default header and footers? TIA Jared Tag: RTL Treeview Control Problem Tag: 104922
  - 5
    - Validating a DataGridViewComboBoxCell on focus lost Hi, i would like to make a DataGridViewComboBoxCell (which often is the last-edited one) validate in such a way that when the datagrid lost the focus the ComboBox cell Text property is setted to the combobox Value property. I've already written all the code needed to change the ComboBox view from a only-pushbutton style to a combobox style (with the text box editable i mean) and to add the Text value to the ComboBox Items and then setting the Value property of the ComboBox to the original Text value. But all works correctly only if i change the focus from the ComboBox cell to another cell. Instead if i click a button outside the DataGridView the cell is not validated and so the Value is not setted and remains null. Is there a way to cause the validation of the DataGridView (and of the ComboBox cell as well) when the DataGridView lost focus? thanks Tag: RTL Treeview Control Problem Tag: 104921
  - 6
    - BeginInvoke and user-interaction I have a datagrid whose datasource is being updated by a function started by BeginInvoke. If the user (as the datagrid is being populated) drags the scrollbar (or even clicks it and doesn't release the mouse-button) the datagrid-population is being stopped. When the user release the mouse-button the datagrid-population is continued. I would like the population of the datagrid to continue while the user drags the scrollbar. Is it possible and how can I achive this? Thanks Tag: RTL Treeview Control Problem Tag: 104915
  - 7
    - What causes exception in ComboBox When selecting last item in combobox I receive the following exception in VS: System.ArgumentOutOfRangeException was unhandled Message="InvalidArgument=Value of '31' is not valid for 'index'. Parameter name: index" ParamName="index" Source="System.Windows.Forms" StackTrace: at System.Windows.Forms.ComboBox.ObjectCollection.get_Item(Int32 index) at System.Windows.Forms.ComboBox.UpdateText() at System.Windows.Forms.ComboBox.WmReflectCommand(Message& m) at System.Windows.Forms.ComboBox.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.SendMessage(HandleRef hWnd, Int32 msg, IntPtr wParam, IntPtr lParam) at System.Windows.Forms.Control.SendMessage(Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.Control.ReflectMessageInternal(IntPtr hWnd, Message& m) at System.Windows.Forms.Control.WmCommand(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam) at System.Windows.Forms.NativeWindow.DefWndProc(Message& m) at System.Windows.Forms.Control.DefWndProc(Message& m) at System.Windows.Forms.Control.WmCommand(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ComboBox.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(Form mainForm) at FAST.AppMain.Main(String[] args) in C:\Dev\client_dev_shared_FAST2\FAST_UCM\FAST\client\FASTGUI\FAST Application\Main.vb:line 25 at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() I dont have any event handlers for the combobox and I'm not catching any exceptions with the VS debugger. What gives, another bug? Tag: RTL Treeview Control Problem Tag: 104914
  - 8
    - Windows Forms Stylesheets? Is there anything equivalent to CSS for use in windows forms? Iâ??d like to be able to have the colors and fonts determined by some kind of configuration file (ala Cascading Style Sheets) so that individual application users can customize the user interface to there taste. Is there any simple way to accomplish this? If not, does anyone have any suggestions for methods or strategies to accomplish this? Oh... by the way, I'm using Visual Studio 2003 & VB.NET but would happily use Visual Studio 2005 if this functionality was built in. Thanks, Jonathan Tag: RTL Treeview Control Problem Tag: 104910
  - 9
    - datetime I have a date value in a database and I want to show it's value on a form. It is bound to the data and shown with a datetimepicker. When the value in the database is null, an incorect value is shown on the form. is there a way to get null to show when it is null? Tag: RTL Treeview Control Problem Tag: 104901
  - 10
    - Display ToolTip on TextBox (Created on VS2003 using C#) I have derived the TextBox control to create my own control that does a lot of filtering and autocorrection of user input. I want to be able to give feedback to the user when there's a problem the input he's trying to do. A good example is in Windows XP if you go to windows explorer and in the folders view try to rename a directory with "\", this will result in a arrow tooltip to display saying that certain characters are forbidden. I was thinking of adding a ToolTop control to my TextBox control (yes I know it's wasteful, but I could work something so they all use the same tooltip, that I will work on later). Now in 2003 there's no .Show(...) method for the ToolTip control, and I don't think my company is gonig to migrate to 2005 before this week, when I have to release the software. Has anyone beem able to show the tooltip programatically without waiting for the user to do a hover? Thanks Tag: RTL Treeview Control Problem Tag: 104900
  - 11
    - Detect if Workstation is locked Hi, I want to detect in my C# app (can use iterop) if the workstation is locked. I've seen on the web people saying it's impossible except by looking if the Screensaver process is running. There must be a clean way of doing it because MSN detects it and can change your status based on this. Does someone have a solution to this please? thanks ThunderMusic Tag: RTL Treeview Control Problem Tag: 104884
  - 12
    - Form - mouse selected I'm trying to enable my disabled menu options (cut, copy & paste). The requirement is to determine what on my form has been selected with the mouse. How can I determine this? Tag: RTL Treeview Control Problem Tag: 104877
  - 13
    - Forcing DataGridView to repaint a row/disabling a row I have a datagridview that is bound to a datasource. The under lying data is not from a database, but biz objects. The first colume (InUse) is a check box to determine if the rest of the row is enabled. When the row is not in use, it is grayed out in the CellFormatting event. After the user checks the InUse colume, the rest of the row does not get repainted. Is there a better way to control editablity of individual rows? If not, how do I go about making the whole row get updated correctly? As I click on the different cells and leave them, they change to the correct color. Tag: RTL Treeview Control Problem Tag: 104876
  - 14
    - outlook 2003 left panel look in c# Hi I'm wondering how can i make a control that looks like the left panel of outlook 2003 , i'm talking about the low part where you see mail, calendar, contacts. this panel you can set the height and the number of 'button' will change there is also a configure button to it. how can i build a control that will look like that using C# 2.0 control, I know that some 3rd party sell those but i don't want to buy those. thanks Tag: RTL Treeview Control Problem Tag: 104874
  - 15
    - ComboBox Binding Problem I am binding a Collection Business Object to a ComboBox in Visual Basic 2005 in a Windows Form Application. The SelectedValue is then bound to another Business Object. When I create a new instance of the object I can use the Combo to look up values but display member is being cleared on losing focus. DisplayMember, Value Member, etc is set as per documentation and per other similar threads in newsgroups. Some are reset after component initialised to be doubly sure they are set. On Editing existing records combo does not display any value, even though when tested the selected value is correct. I tested code in same form with Janus Combo and it worked perfectly using properties displaymember, valuemember and SelectedValue (Using DataSourceUpdateMode.OnPropertyChanged ). This would lead me to view I am doing everything correctly but the MS Combo is not behaving correctly. Can anyone shed any light on this, is there a bug with the control? Regards Tag: RTL Treeview Control Problem Tag: 104873
  - 16
    - TypeDescriptor get Conveter attached to a property I have class that has a property wich has a custom typeconverter: class A { private string _property; [TypeConverter(typeof(MyTypeConverter))] public string Property { get { return _property; } } } How can I get an instance of this typeconverter? When I do A a = new A(); TypeDescriptor.GetConverter(a); I get an instance of the default Typeconverter attached to the class A (as expected). When I do TypeDescriptor.GetConverter(TypeDescriptor.GetProperties(a)[0].GetValue(a)); I get an instance of the default Typeconverter of the class string (as expected). How would I retieve the instance of MyTypeConverter attached to Property ? Tag: RTL Treeview Control Problem Tag: 104872
  - 17
    - outlook 2003 left panel in c# Hi I'm wondering how can i make a control that looks like the left panel of outlook 2003 , i'm talking about the low part where you see mail, calendar, contacts. this panel you can set the height and the number of 'button' will change there is also a configure button to it. how can i build a control that will look like that using C# 2.0 control, I know that some 3rd party sell those but i don't want to buy those. thanks Tag: RTL Treeview Control Problem Tag: 104869
  - 18
    - Custom Control with Transparent Background /* How can I give my custom System.Windows.Forms.Control a transparent background? In the small application below, I expect to see two partially overlapping circles, a blue one and a red one, but only the blue circle appears. When the background of the controls iis transparent, both circles will show. If this feature is not available or only through some kind of hack, what is the reason that Microsoft does not support controls with transparent background? */ using System.Drawing; using System.Windows.Forms; //class ColorCircleControl class ColorCircleControl:Control { //data member brush Brush brush; //data members x,y int x; int y; //constructor public ColorCircleControl(Brush a,int b,int c) { brush=a; x=b; y=c; SetStyle(ControlStyles.SupportsTransparentBackColor,true); BackColor=Color.Transparent; Dock=DockStyle.Fill; Paint+=OnPaint; } //OnPaint void OnPaint(object a,PaintEventArgs b) { b.Graphics.FillEllipse(brush,x,y,55,55); } } //class MyForm class MyForm:Form { //constructor public MyForm() { Controls.Add(new ColorCircleControl(Brushes.Blue,34,55)); Controls.Add(new ColorCircleControl(Brushes.Red,55,55)); ClientSize=new System.Drawing.Size(233,144); } //Main [System.STAThread] static void Main() { System.Windows.Forms.Application.Run(new MyForm()); } } Tag: RTL Treeview Control Problem Tag: 104868
  - 19
    - GDI objects count Hello all, Can somebody help me out regarding how to maintain the GDI objects count in my application it keeps on incrementing and once reaches to 10000 the application dies. Can somebody point to me some sample application which could help me to understand how exactly manage the object disposal I have been reading the articles for memory management and GC but things are getting more and more confused to me. Needed help urgently Thanks in advance Tag: RTL Treeview Control Problem Tag: 104866
  - 20
    - The good old Cross-thread operation not valid Hi, Does anyone know if there is a better solution for the good old "Cross-thread operation not valid" than dealing with delegates and Invokes? (This happens when you access GUI from a thread that did not create it) I realize that the problem is based on the old Windows requirement (only thread that created the window shalt process its messages) but it is 21 century and the new VS 2005 was supposed to be all about productivity, concentrate on your buisness logic and do not write plumbing code etc... If poluting your code with delegates and Invokes just to do (txtBox1.Text = "Blah") is not plumbing I am not sure what is.... Anyway, does anyone know if a better, more straightforward solution exist? I guess the anonimous methods help a bit but it is still pretty ugly. I also read about the BackgroudWorker component but that one is not very intuitive either... Ivan Tag: RTL Treeview Control Problem Tag: 104858
  - 21
    - Performance of form controls refreshing on Resize Hi, I'm a little new to forms programming with C#, so I'd appreciate some pointers on how I can improve the (perceived) performance of my form when it's resized. My form contains a TabControl, which has a couple panels, about 15 text boxes + labels, and two comboboxes, all bound to a custom object. When I resize the form, the controls on the form seem to resize/repaint very slowly. I had thought there's a way to hide this repainting of each control, to make the overall operation appear faster, but I'm not sure where to handle that. Thanks for any pointers, Michael Tag: RTL Treeview Control Problem Tag: 104856
  - 22
    - Tracing not allowed in installed winforms application I have tracing set up in my application to write out to a log file. Now If I install the application from my setup project and try to run it, I am getting an exception that says something along the lines of: "UnauthorizedAccessException: ... Access to the path ...\myAppLogFile.log is denied" I checked the permissions of the directory inside of program files and sure enough, only administrators were allowed to Modify the files in the directory. I was logged in as a non-administrator when I was testing. When logged in as adminstrator, no problems arise. Does anyone know of a good approach to this? Perhaps I should modify the directory permissions on install? Thanks, Jonathan Tag: RTL Treeview Control Problem Tag: 104850
  - 23
    - Crystal Reports 'Logon failed' error I have read all the postings in this forum for this dreaded unpopular error, but I haven't found a resolution to my problem yet and I really need to get this bug resolved. I have a winforms app written in VS 2002 which contains a number of Crystal Reports, all of which were working fine. I had to change the data source of 1 report from Stored Procedure A to Stored Procedure B in my SQL Server 2000 db. Connections are made through ODBC, not integrated security. I was able to do this without difficulty by resetting the Location of the report source, but when I try to open the report at run-time, the following occurs: - prompt appears asking for db password. server name, db name, and username are prefilled. - when correct password entered, 'Logon Failed' message appears - when correct password entered a second time, login box disappears and report displays I am logging on in code every time I load any Crystal Report, and none of the others give me this prompt. All reports are loaded into the same report viewer on the same page; I just have a long select case statement which indicates which report to load. I would really appreciate any help you could offer. Here is the complete code: Sub PrintReport(ByVal strRpt As String, ByVal strSp As String, ByVal ParamArray paramValues() As Object) 'Prints selected Crystal Report 'Params: 1. Name of report to print '2. Stored Procedure to run '3. Array of Paramater names & values Dim objRpt As Object Dim crTable As CrystalDecisions.CrystalReports.Engine.Table Dim crLogonInfo As New CrystalDecisions.Shared.TableLogOnInfo() Dim objData As New BusinessRules.CDataAccess() Try '1. Create selected report object Select Case strRpt Case "rptcarrierform" objRpt = New rptcarrierform() Case "rptInvoice" objRpt = New rptInvoice() Case "rptInvoiceCharges" objRpt = New rptInvoiceCharges() Case "rptCreatedInvoices" objRpt = New rptCreatedInvoices() If Not IsNothing(objFrm) Then objFrm.Close() End If Case "rptNoInvoice" objRpt = New rptNoInvoice() Case "rptWSIB" objRpt = New rptWSIB() Case "rptManifest" objRpt = New rptManifest() Case "rptRunningOrder" objRpt = New rptRunningOrder() Case "rptBrokerage" objRpt = New rptBrokerage() Case "rptBrokerage2" objRpt = New rptBrokerage2() Case "rptMedical" objRpt = New rptMedical() Case "rptLicense" objRpt = New rptLicense() Case "rptAccruals" objRpt = New rptAccruals() Case "rptCancelled" objRpt = New rptCancelled() Case "rptInvoice2" objRpt = New rptInvoice2() End Select '2. Connect to db rptViewer.LogOnInfo = New CrystalDecisions.Shared.TableLogOnInfos () crLogonInfo.TableName = strSp & ";1" objData.ReportLogin() With crLogonInfo.ConnectionInfo .ServerName = objData.ServerName .DatabaseName = objData.DatabaseName .UserID = objData.UserID .Password = objData.Password End With rptViewer.LogOnInfo.Add(crLogonInfo) '3. Add Report Parameters SetParameters(paramValues) '4. Bind data and display report rptViewer.ReportSource = objRpt rptViewer.Show() Catch objError As Exception CException.LogError(objError) End Try Me.Cursor.Current = Cursors.Default End Sub Private Sub SetParameters(ByVal ParamArray parameterValues() As Object) Dim ParameterFields As CrystalDecisions.Shared.ParameterFields Dim ParameterField As CrystalDecisions.Shared.ParameterField Dim spValue As CrystalDecisions.Shared.ParameterDiscreteValue Dim p As SqlParameter Try If Not parameterValues Is Nothing AndAlso parameterValues.Length > 0 Then ParameterFields = New CrystalDecisions.Shared.ParameterFields () For Each p In parameterValues If (Not p Is Nothing) Then ParameterField = New CrystalDecisions.Shared. ParameterField() spValue = New CrystalDecisions.Shared. ParameterDiscreteValue() ' Check for derived output value with no value assigned If (p.Direction = ParameterDirection.InputOutput OrElse p.Direction = ParameterDirection.Input) AndAlso p.Value Is Nothing Then spValue.Value = "NULL" 'DBNull.Value End If 'Set parameter name & value ParameterField.ParameterFieldName = p.ParameterName spValue.Value = p.Value 'Add to parameter collection ParameterField.CurrentValues.Add(spValue) ParameterFields.Add(ParameterField) End If Next p 'Add parameter collection to Report Viewer rptViewer.ParameterFieldInfo = ParameterFields End If Catch objError As Exception CException.LogError(objError) End Try End Sub -- Message posted via http://www.dotnetmonster.com Tag: RTL Treeview Control Problem Tag: 104847
  - 24
    - return value I had this working and now it's not. I call one form from another then I return a value to the first. I had a public sub in the parent form that the child would call and set the variable. The value in the parent form always ends up 0 now. Even though it appears the value the child is sending is correct. As soon as the child form closes the value resets to zero. I'm not sure why it was working before and now is not. Can anyone explain my error? Tag: RTL Treeview Control Problem Tag: 104846
  - 25
    - get form Hi I have a windows application. This application opens some forms. I wold like to get the first form (the one includes main) from the other forms and call some functions in that form. How do I do this? I know Thanks Julia Tag: RTL Treeview Control Problem Tag: 104845

Hi, i'm having a problem with RTL Treeview to enable Mapping Trees with Left
and Right TreeView. On the right-hand side is a Right-To-Left TreeControl
showing up some nodes. Between the left tree and the right tree there are
some connection lines.

And now comes my problem:
everything is working fine on the natural box. But if i'm switching to
remote desktop the connection lines on the RTL Trees are incorrect painted by
Graphics.DrawLine(). Realy curious. (wrong direction!)

Ideas, suggestion,.. are welcome.

Greetings, Ralf

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