Hi, I am creating a windows forms component with properties that do NOT have default values at design-time. The type of these properties are the primitive types (ie bool, double, int etc). public class MyComponent : Component { public bool EnableSessionState { ... } } At design...more >>

Hello, I'm writing a component (inherited from Control) which is a graphic line optionaly attached to a caption text (Caption property). I would like to assign to the Caption property the name of the control, but, when I have to do this? In the constructor the control does'nt has name yet. ...more >>

I am trying to migrate a VS 2003 custom control to VS 2005. There exists a custom designer for this control in a separate assembly. The designer is attached to the control via the Designer attribute using only strings instead of the types. In order for VS 2003 to find the designer assembly, I ha...more >>

Good morning this is the code I use in a container control designer to prevent that another control (any) is copied directly inside him: Public Overloads Overrides Function CanParent(ByVal aControl As Control) As Boolean Throw New Exception("Adding an item directly to the CommandBar...more >>

I've scanned the threads in this forum and I'm still stumped on a desig time issue. I'm relatively new to .Net Forms development so I may b overlooking something simple. I am trying to create a custom UserControl which contains anothe custom control that is an extension of TextBox. The cust...more >>

I have a custom collection in my c# winform ui control called Items. Items is a built in collection type that does not allow itself to be replace (you can't 'set' the itemscollection in the control). However, the contents of the Items collection is persisted through designtime. Currently th...more >>

Good afternoon I've developed some controls that holds specialized collections of items (a collection of ImageItems for a ImageComboBox, a collection of MenuItems for a Toolbar, etc.). The controls and the embedded collections interacts each other correctly and everything work fine. But I'...more >>

Hi there, I still not understand this behaviour of VS2005 Windows Forms Designer. It is a normal practice that we create a base form and then master form and then final form. I mean let say I create BaseForm.cs which is my base form (just derived form System.Windows.Forms) then I create Mas...more >>

Seems that DesignSurface has a memory leak. Where should I report it? This can be observed by running the program bellow and push several times the <ShowDialog> and <CallGC> buttons and observe that the heap memory increase each time <ShowDialog> button is pushed. The leak can be also observed...more >>

Hi all I declare a toolbox bitmap with the attribute (ToolboxBitmapAttribute), but the image does not appears in the toolbox. I tried using typeof(Form) or a path to an icon or bitmap (16x16) but the toolbox allways displays the default icon (the gears). It was working well with the beta ...more >>

Hi All, I created a designer class (inherits from ControlDesigner). In the response of one of the verbs, the designer opens a dialog box to configure the user control. I would like in this dialog box, show to the user a list of all the form contained in the project to make some association...more >>

I have created a component that implements several properties as an Extender Provider. I store each controls location and dimensions for portrait and landscape screen orientations (for a Tablet PC app). Everything works great except that when the calls to add the extender provider properties a...more >>