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Dynamically adding combobox to Grid

Thread ID:





10892 Feb 16,2004 08:55 AM UTC Feb 16,2004 10:19 AM UTC WinForms 1
Tags: GridControl
Administrator [Syncfusion]
Asked On February 16, 2004 08:55 AM UTC

Hi , I am populating the Combobox dynamically in the GridDataBoundGrid.I am able to populate the combobox but when i click on this cell it crashes. Please tell me the way out of this problem and possible reasons why it is coming...I am giving you the information i got while running it... Messages: Object reference not set to an instance of an object. Stack Trace: at Syncfusion.Windows.Forms.Grid.GridControlBase.OnPaint(PaintEventArgs pe) at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer, Boolean disposeEventArgs) at System.Windows.Forms.Control.WmPaint(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at Syncfusion.Windows.Forms.ScrollControl.WndProc(Message& msg) at Syncfusion.Windows.Forms.Grid.GridControlBase.WndProc(Message& msg) at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Administrator [Syncfusion]
Replied On February 16, 2004 10:19 AM UTC

Here is a KB link to one way you can dynamically control the contents of one dropdown based on the values set in another using CurretnCellShowingDropDown. http://www.syncfusion.com/Support/article.aspx?id=567 Here is a sample that does it in a slightly different manner using grid.Model,QueryCellInfo. How are you trying to do it? If you cannot use one of the above techniques, can you postt a sample project showing what you are trying to do?


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