Windows Forms provides a Closing event that the form being closed can cancel. It seems clear for modal dialogs but not for modeless forms. The method Close() on the form causes the event to occur but doesn't return a value. How can the element doing the closing know the form didn't want t...more >>

Hi, ..Net documentation says that the datatype of picture box width and height are Int32 then why can't we assign Int32.MaxValue (2,147,483,647) to width and height of the picture box. Similarly, When we create a bitmap having the following dimension Bitmap bmp = new Bitmap(Int32.MaxV...more >>

I am developing a UI that will be mainly keyboard driven. I have a datagrid that needs to return a value when the user hits the 'Return' button. I have tried the keypress, keydown, and keyup events at the datagrid as well as at form level, but have not succeeded in being able to return t...more >>

How to add ListBox or TextBox to ToolBar...more >>

Jazzyfoot (jazzyfoot@hotmail.com) posted this message at 2003-02-11 15:40:00 PST: "The problem occurs when my application creates multiple modeless forms. What happens is that when these forms are closed focus changes from the parent application to the last application which had focus (e.g. Vis...more >>

Hi, does anyone know how to intercept the SHIFT key while opening a vb.net or C# windowsforms application? I would like to do something like MS Access when excluding autoexec macros. thanks Alberto ...more >>

When I launch a form from a c# dll (part of the c# project), after I do a show the launched form freezes. If the dll host launches the same form from an exposed public method in the c# dll project then no problems. Is there anyway I can launch the windows form that is part of my c# project with...more >>

Hi, I am using managed C++ and want to programmatically set the forms BackColor from either four values (A,R,G, B) or one value ARGB. I tried putting this is the form's load method: Color clr; clr.FromArgb(ARGB); this->BackColor = clr; It compiles and runs but the color doesn't change....more >>

Hey group! first of all, happy new year to everyone. I have a small problem that I haven't worked out yet and it's driving me a little crazy. I have two forms with a listbox control on each one. the child form passes the selecteditem to the parent form. but I want to pass the whole item (V...more >>

The grid happily shows any public properties that has the Browsable attribute set, but if I inherit public properties from some base class and base my property grid on the new class, the property grid shows base class properties but displays "Object reference not set to an instance of an object"...more >>

Hi All, New here to .NET and am having difficulty conceptually understanding how one would use Datasets and have an empty form open up ready for data input. It seems like all of the examples I've found are related to showing how to display existing data in a grid (lots of examples here), or set ...more >>

Hi, I have 2 label within a xpander control. (or another container for that matter) The contents of the labels are set dynamically (label.Text = ...). I want to use a fixed width (the width of the container), but the label has to span its text across multiple lines. (so the height is variab...more >>

hi, i'm working with an mdi application in which i have several mdi children open. as i minimize these children they are visible in the lower left hand corner of the screen on top of the mdi parent form. however, each of these mdi children have been minimized to the point that they're about th...more >>

Hi all. I've seen examples on how to measure average character width with StringFormat.GenericTypographic and how to set the SelectionTab array, but the problem is, even with fixed size font (Courier New in my case), the tab width is off by 1 or 2 pixels, depending on font size. Seems to me i...more >>

If I base a PropertyGrid control on a class, I have a certain amount of control on which public properties exposed by the class appear in the control via the [Browsable(true)] attribute of the property. I need to have a finer degree of control since (based upon a number of factors) I may either ...more >>

Greetings, How can I disable the blinking cursor (called a caret?) in a richTextBox control in C++ .NET? I found a command for MFC called HideCaret, but I'd like to do this in Windows Forms. Any help would be greatly appreciated! Thanks, Kevin ...more >>

I have included a snippet below which illustrates the problem with adding and removing controls in a repeating fashion. At least on my computer (Windows XP) the program crashes after several thousand iterations. Is there a way to correct this simple program so it doesn't crash or is ther...more >>

How to add ListBox or TextBox to MenuBar?...more >>