Hi guy, just wanted to know if there is any way to change the BackColor of the toolbar control? Thanks...more >>

I am obviously missing something fundamental with regard to making a copy of a form. When I try it, sometimes it works and sometimes it doesn't. If I am trying to copy a form that is not complicated, like a dialog it seems to go ok but I have an form in a VB application that is the main form to...more >>

I am having a strange problem associated with appending to a textBox using C# .NET. I am running another program (using the 'Process' class) and the standard output from the other program is being redirected somewhere else using threads so I can display it in the Multiline textBox control. I ...more >>

Thank you for your help in Advance. I have have string " hellow world " In this this i need to have different font for "hellow" and different font for "world" . Leater i would assing this string to a textbox. Any tricks and tips would appriciated. -Thanks Xalmen....more >>

Hiya all, I'm not exactly sure where to be posting this question, but here goes & hopefully someone can answer it or re-direct me. I'm building a windows form application in C#. I am using MSDE I've imported my Access.mdb & set up the Identity, Identity Seed, & Identity Increment. I want to...more >>

how to make floating menu?...more >>

Hi, for our application, we want to keep track on whether the user is currently in a text box or not. So I simply retrieved the handle of the focus window and tried System.Window.Forms.Control.FromHandle to get the control that is responsible for this handle. Now, this works fine. The next...more >>

I have written a custom Windows control from scratch, deriving from the = Windows.Forms.Control class.=20 =20 My control has a text input area, capable of receiving focus. It has a = KeyDown event handler, which handles Keys.Left, Keys.Right, Keys.Home, = Keys.End. =20 When focus is ...more >>

I wish to create a routine that can handle removing event handlers. What type of variable can I pass into the routine (into EventName) to handle this? Function HandlerAddRemove(ByVal ctl As Control, ByVal EventName As ??????) RemoveHandler cboCriteria001.RowSelected, AddressOf EventName E...more >>

Hi, What is the difference between Object.Equals and "==" operator ? When we use CollectionBase.List.Remove(object), which methods is used to compare objects ? Thanks ...more >>

I have been developing web sites for the past year now in vb.net and I now have to tackle windows form. The problem I am having seems to be a simple one but the solution has eluded me. I have several forms that collect information and populate a global employee class. The problem that I am ha...more >>

Hi, I noticed that there are some special piece of comments in the source-code generated by Visual Studio.NET when we create a new C# projects. These comments comes with tags like /// <summary> /// Clean up any resources being used. /// </summary> What is the purpose of tags <summary> ? ...more >>

I have a listbox and a textbox. When I choose the value from the listbox, I would like to see the value placed in the textbox. When I click a row in the listbox, the SelectedIndexChanged event fires fine and places the value in the textbox. The problem is that this event fires when I fill the li...more >>

Hi all, I have developed a windows form user-control that I plan to use in a web-page (with the <object> tag). I works well and I can get/set standard properties (e.g. 'Text') and custom properties of the control in javascript from the web-page client side, but I can't figure how to expose a ...more >>

I want to implement a collection property inside another (in a control derived class) but I have some persistence problems. There is an example of my ColumnItem class <TypeConverter(GetType(ColumnItemConverter))> _ Public Class ColumnItem Private m_strText As String Private m_intWidt...more >>

Hello, I have a text box in which I want that a user can only write a number or the character 'x' but I can't do that could any one help me please thank you ...more >>

Yes ...more >>

I know some problems with the folderbrowser were already mentioned but i'm having a different problem...no matter what I do, I can't make the "New Folder" button go away...even if I explicitly turn it off before calling ShowDialog() as follows: folderBrowserDialog.ShowNewFolderButton = false ;...more >>

Hi all I' developing a C# windows applicaion i need to use barcode reader in my application. Plz tell me how can i read barcodes and how can i generate barcodes using C# and ..NET framework 1.1. in windows applications....more >>

Hi I have a usercontrol with a tabcontrol on it and on the tabpages there are some textboxes. I would like to have Ctrl+Tab change tabpage change one tabpage forward and Ctrl+Shift+Tab change one tabpage back, just like Word has it. The Usercontrols Keydown event doesn't get fired, so I have t...more >>

Hi all, I'm an accomplished web software engineer of 6 yrs. with pretty tight knowledge of asp.net, however I'm entirely ignorant when it comes to windows development and windows forms. There are a few basic questions which I'm sure could easily be answered by any win forms developer...more >>

Hi, I have a problem with form showing form event handle. I'm calling event handle (which should show ChatForm form) in FormMain form thread in another class. The thread checks if there is any data available from network if so it calles event handle which add some info to text box placed on a ...more >>

I have a text like this <a href=aaaa>something </a><a href=aaaa>something </a><a href=aaaa>something </a><a href=aaaa>something </a><a href=aaaa>something </a> i have to extract each "<a href=aaaa>something </a> "out i did something like this <A[^>]*>.*</A> but it returns the whole string ra...more >>

Is there anyway to UnMerge one Menu from another? Example: you merge Menu2 and Menu3 into Menu1. I want to UnMerge Menu 3 and sometime later UnMerge Menu 2. Thanks for any insight on this. Best regards, Gene McCrory ...more >>

if i have a button the programatically toggles the topmost property and ShowInTaskbar of a form (topmost=true, ShowInTaskbar=false OR topmost=false, ShowInTaskbar=true), the mouseenter and mouseleave events stop firing on my picturebox controls on my form. It's the ShowTaskBar that's the proble...more >>

Hi to All, Is the TextBox automaticaly readonly when the binded underlying DataView ..AllowEdit is false? Generally: How can I make read only forms? ( Note: I dont want to disable the textboxes, so disabling their container ( panel, groupbox, form etc) is not a solution ) thx for answe...more >>

Hi! I need to creat a project, using C#, to open images. Then, i want to select a part of the image (circle, rectangle, ...) and save the bitmap selected to display and use it when i want to. At the moment i can display the image in the form but i can't do nothing more... Please, if you c...more >>

Greetings! I am trying to close a form programmatically and I am having trouble. The program is a windows form, however, I also want to be able to run the program in an unattended mode and then close down when it is down. I collect the arguments from the command line and then I want t...more >>

I need in C# please. ...more >>

How can I acces statusbar properties in a MDI application (from a child form) ? Also how can I write in status bar for a menu item ? ...more >>

Hi all, is there a chance to append the text of the new selected item to the text in the textbox portion of the control? Example: textbox: "hello " new selected item: "world" new textbox text: "hello world" TIA Peter ...more >>

Hello there, I have the code to start a process, but what I don't understand is how to spawn a process and NOT have the main window hang where it was called from. In other words, have it call a process and continue on and then let me know when it's finished. I also need to direct the stand...more >>

I have a property that uses my own editor. It brings up a modal dialog. When I hit ok on the dialog, the PropertyGrid does not send out a PropertyValueChanged notification. Is there anything special I have to do to make this happen? public __gc class CPictureEditor : public System::Drawing::D...more >>

Greetings, I have a form with many controls on it. At run time I like to be able to get the control from the form using its name. For example GetControl(SomeControlName) as control is there a way to do this without going trough all the controls and checking their name one by one. Shah...more >>

Hi, I've been searching for a code generator that can take a table in SQL Server and generate a WinForm for that table. This form will be used to gather data from the user in order to add and update all the fields in the table. I have over 100 tables so a code generator would sure be helpful. ...more >>

Is it possible to hide the last row or "insert row" line of a datagrid? Setting it to read only will not work. I want the users to only be able to edit existing rows. Thanks, Hex ...more >>

I've got some problems printing to a dot matrix printer. After correctly setting all the charecteristics of my papersize in the BeginPrint()... private void pdLabelDoc_BeginPrint(object sender, System.Drawing.Printing.PrintEventArgs e) { pdLabelDoc.PrinterSettings.PrinterName = "Epson LX-30...more >>

This bug makes wrappable toolbars with separators in them pretty useless and it would be nice to have it fixed, or maybe there is a workaround (besides removing the separators)? Symptom: When a toolbar with a separator wraps it looks like an empty row is added to it, if there are more than one...more >>

I'm making a custom control. It draws a bitmap in OnPaint, then draws text over it. This worked fine until I started embellishing the application which uses the control. At times the image is shown with inverted colors. Typically it happens when some other form is involved. For example, when I ...more >>

Here's the deal. I've got a class which is the root of an object hierarchy. Within this class I create a private member variable of type Form. In the form class, I have created a public LoadFile method that reads a text file (960 KB), creates an array of ListViewItems(~33,000) based on the f...more >>

Hi, Does anybody know how to remove the last raw on a dataGrid control on a Windows form? This raw is empty with a star sign on the first column. When I click it some data become null. Thanks for any help, CT ...more >>

I have discovered a leak when using the webbrowser control on a form displayed as a modal dialog. Navigate has to be called to see the leak. While viewing Task Manager's Processes tab, it appears to leak a 'USER Object', 'Handle' and 'Virtual Memory'. While using Spy++, I can see that it lea...more >>

My question concerns the documentation for Control.BeginInvoke(). At one point is says: "Executes the specified delegate asynchronously with the specified arguments, on the thread that the control's underlying handle was created on." later in that same documentation page it says... "Note...more >>

Hi, I am currently trying to understand how to use resource files in a VB.NET windows application. I understand the general concept, but it think there is a detail I am missing. BTW, the resource file is not used for Globalization here. I have a simple form with a button and a textbox....more >>

We have various user controls and forms that will be loaded and unloaded during a program run. I want to be sure we are not going to leak memory. In the InitializeComponent method a lot of events are being added via += calls. Do I need to clean any of these up? We create basic fonts as mem...more >>

Hello, I have a form which opens a window when I click a button on it. However, this window will open as many times as I click the button. How can I prevent this user-controllable memory excess- usage danger? Thanks, Manuel ...more >>

I'm trying to allow the user to select a row in a datagrid by right clicking on it (so that I can select the row and then a context menu is displayed). In the DataGrid MouseDown event handler, I call HitTest on the DataGrid (supplying the mouse X and Y positions). If a row is selected (i.e. th...more >>

I'm trying to override the Font property of some controls. For a Label this works as expected, but the TextBox ignores the value returned from the subclass. This small example shows this effect. I set the Font ot the form to 6pt Sans Serif so normally all controls would be using this font. N...more >>

Hi! How to create floating dockable window or toolbar? MSDN says that "The Form class can be used to create standard, tool, borderless, and _floating_ windows". It's all information about floating windows that M$ can open for community from it's great proprietary portfolio?!?? Or more detai...more >>

I want to write class that effectively caches object state between instances of a WindowsForms application running. The obvious device to use is the [BinaryFormatter] within the Runtime.Serialization namespace. However, I would also like the class to be operable within a No-Touch-De...more >>