Hi, how do I make sure that user select only the options available in a ComboBox. In other words, I do not want want them to key into the ComboBox themselves. Thanks Shelby ...more >>

Hi, we have a big problem with re-using a user control as component inside another user control. The Visual Studio designer often generates code for the *inner* user control in InitializeComponent of the *outer* user control. But this code was already generated in the InitializeComponent metho...more >>

Hello all, I am new to this so I may not explain myself very well. 1. I have an inherited TreeView control that I would like to have a partner control set at design time using the properties window; like the ControlToValidate property in some web controls. When a node is clicked in my Tr...more >>

Does anyone know if it is possible to add verbs in the designer to controls that are NOT created by me? For instance, whenever the user has an instance of one of my manager components on their form and selects a control (such as a Button, Label, or any other control not created by me), I would l...more >>

Can someone help me out with datagrids in vb.net that can expand and collapse, show and hide rows? Can i code it by myself or should i use another downloaded component? And by the way, how can i put a combobox control (and others) into a datagrid, besides textboxes and checkboxes? Point me ...more >>

Hi, Whenever I add images to imagelist and running my application I encounter this error: ------- An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll Additional information: Exception has been thrown by the target of an invocation. Then i...more >>

i have a generic form with alot of controls on it, when i inherit a new form, i can not see the design of my new form on the visual studio and get an error on designtime. Error is: The designer could not be shown for this file because none of the classes within it can be designed. The des...more >>

Is there any way to copy a whole solution ? I want to copy everything so that in the new solution all the internal references are redirected too so the new solution is still self-contained. And this should not affect the original solution - it should still work on it's own. Currently I'm ta...more >>

Hello all, I've searched around and can't seem to find a solution to this. I have a component that builds a tree of controls / components that are placed on a form. The walking the controls was easy and is working great. The problem is the components in the ComponentTray. I've added mu...more >>

I have one class, say AcmeWidget that contains a complex property call = it legend defined like so: public class AcmeWidget : Control { ... = [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)= ] public Legend Legend { get { return m_legend; } } } [...more >>

I am using the .NET licensing pattern to license some custom WindowsForms controls. Everything is working fine except when I cut/copy and paste the control. The problem is that LicenseManager.GetLicense has a parameter of type LicenseContext. This type contains a property called UsageMode that...more >>

Could someone please explain how I overload the Show() method of a form? Suppose I select a record from a datagrid on Form1, then I want to show the details of the selected record by opening Form2 using say the CustomerID as an 'argument' to the Show method. So, in Form1 I would have code su...more >>

I have a property which is a basic type and I have a custom editor on the property. The value of the property shows up as editable with the "..." button to launch the custom editor. However I want to PREVENT the user from editing the value by simply typing it in. I want to force the user to launc...more >>

I have created a custom control and I wish to extend the properties of any control that is placed within my custom control I have also created an IExtenderProvider class that works except that I do not know how to restrict CanExtend based on extendee.parent since the parent is null at that point...more >>

Hi, I have a component witch have to execute some tasks when the form is loading but i can't tell my component to do this because i don't know how to eventhandler the load event form. Can you help me ? Regards Nelson FANECO France ...more >>

I have a property in a component that is a collection (array). The base type of the item in the array contains a type which has another array. I edit the the first array (default collection editor invoked from property grid) from which I can edit the "next level" array. I have a custom editor (...more >>

I have created a UserControl and would like to change the toolbox category that it appears under in Visual Studio? As in it currently appears in "My User Controls", how can I do this? Also does the ToolboxBitmap attribute work with UserControls, I have tried: [ToolboxBitmap(typeof(CronSchedul...more >>

Let's say there is a component (component A) with a collection for a property. This collection is a collection of components (component B) with DesignTimeVisible = False, so they don't show up in the component tray. When adding to the collection, there is a variable declared for each component...more >>

Hello, I've written a component that has public properties of type System.UInt32. When the component is added to a project (component tray) the following is produced in the code (Form for which the component was dropped): // TODO: Code generation for 'this.bridgelCtrl1.TimeoutConstant' faile...more >>

Anyone tell me how to get the ControlDesigner for any control? I need to check the selection rules, and other things. A samle would be great, or a website... Thanks, Schneider ...more >>

I have developed a set of routines to compute certain statistics. Because some of these computations are rather involved, I have designed the relevant properties so that a statistic is computed the first time it is encountered, that value is saved, and the previously saved value is retrieved the...more >>

The problem is that DesignMode property only returns True, if the control can be directly modified. If the control is on a user control, and that user control is on a form - the design mode property of the original control is now False. This isn't useful, because what I need to know is if th...more >>

Hi, How can we trigger key press event of a child from from Mdi Form Please Suggst. Thanks & REgards CV ...more >>

Why a derived form copy in its resx file all the icons from an ImageList component (visibility protected) placed in a base form? Is this the standard behaviour? I have an ImageList component and a toolbar in a base form and a lot of derived forms. If I change an icon in the base form, I have ...more >>

Hi, everyone, What I'm looking for is some addin that will show me this: Form1 + Panel1 - Panel2 + Button1 + Panel3 - TabControl1 - TabPage1 + Button2 + Label1 + TabPage2 etc, etc. I think this would save me a lot of annoyance, especially if I coul...more >>

Hi, I would like close & restart the same application automatically. How can I achieve this. Please suggest Thanks & Regards CV ...more >>

Hello, can i assign a label to a textbox? I can do this for example in access on moving a label on a textbox. I try this now in visual studio.net (c#) but it is not possible and there also isn't any property. If it is possible then it is easy so who knows it could help me a bit... ...more >>