Hello, I want to simulate a combobox by having a textbox and a Listbox. The only problem is that list box, when shown, cannot extend beyond it's owner form boundaries (like a combobox does). I have to achieve this by creating a new form for list box etc. which creates other focusing problems. ...more >>

I have a question about form data validation and error providers: typically, I add some controls and an error provider to my form, then I handle the Validating event of each control which requires validation and perform the data check. In this handler I use the error provider SetError and set e....more >>

Dear All, Is it possible to have ShortCut keys on tab pages f.e.x. If I have two tab pages <tabPerson> and <tabMachine> I would like to assign hot keys to them like <tab&Person> and <tab&Machine>...I tried doing this but failed...is there some other workaround... Please help TALIA Man...more >>

Hello Is there anyway that a parent form can be informed if a control on it has focus? I could just inform the parent form on the controls "GotFocus" event but this is not the ideal solution for me. It would mean adding code for every control that I add to the form. And I want to create a base...more >>

Hi, I have a UserControl (MyUserControl) which has a DataGrid (MyDataGrid). I made a new UserControl that Inherits of my first UserControl: I named it MyInheritedUserControl. For some reason I don't 'see' the Methods/Events etc of the Controls I putted on MyUserControl in the two ComboBoxes...more >>

Hi everyone, I am inheriting the DataGridColumnStyle class that hosts a DateTimePicker control and that's ok. The problem I'm going through is that the right and left arrow keys don't work like they do in an isolated instance of a DateTimePicker control, ie, the focus go to the next grid cell...more >>

I am having an issue with a windows form where the form (most of the time) will not close when mouse clicking the close X on the upper right. Debugging it shows that the closing event is called, but it never makes it to the closed event. Any suggestions? Any help on how I might debug what is ha...more >>

Hello How can i control the serialize result? I dont need <?xml version="1.0" encoding="utf-8" ?> and "xmlns:xsd=http://www.w3.org/2001/XMLSchema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" in the following example: <?xml version="1.0" encoding="utf-8" ?> <Message xmlns:xs...more >>

Very Random Problem. Unable to reproduce. Sometimes when I bind a dataset to a datagrid I get the following exception: ************** Exception Text ************** System.ArgumentException: '0' is not a valid value for 'value'. 'value' should be between 'minimum' and 'maximum'. at System.Wind...more >>

Very Random. Can't seem to reproduce. But sometimes when I bind my dataset to my datagrid I get the following exception: ************** Exception Text ************** System.ArgumentException: '0' is not a valid value for 'value'. 'value' should be between 'minimum' and 'maximum'. at System....more >>

I'm a seasoned C# developer, but new to custom controls. I'm writing a control that has its own toolbar, and I'd like the toolbar buttons to be editable in the collection editor at design time (just like normal toolbar button setup). To accomplish this I exposed the internal toolbar via a pulblic pr...more >>

What VB.Net controls exists that give me full RTf/Word processing with multi-language support ? I really want to run Word Pad or MS word within my VB.Net Application ? What are my options....more >>

I've got an application that consists of lots of controls with custom painting. Most of these inherit from UserControl but there are also others (Control, Button, 3rd party grids). Now, in several of the controls I experience a really strange problem with drawing lines in the paint overrides. It ju...more >>

I have a singleton application that is meant to manage multiple top-level windows. I use remoting to send the arguments of the extra application instances the user might start back to the first one. The method I call on my remoting object is not executed on the same thread as the forms so I can'...more >>