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Syncfusion Feedback

Custom Renderer

Thread ID:





25456 Feb 27,2005 04:57 PM UTC Mar 23,2018 03:14 AM UTC WinForms 1
Tags: GridControl
Stefan Tsalapatis
Asked On February 27, 2005 04:57 PM UTC

Hi, May be you can help me. I use a Custom Renderer based on GridCellRendererBase. The Control which takes the focus has overriden then ProcessCmdKey method When it is placed standalone on a Form it works fine. When it is activated from Renderer if I press the Keys.Back (this is my problem) and I leave it to base.ProcessCmdKey (under certain circumstances) then I receive an ArgumentException from system.windows.forms.dll. ''-1'' is not a valid value for ''start''. The GridSelectionMode is set to .One. but it does not influense. Do you have any good advice ? Thanks Stefan

Administrator [Syncfusion]
Replied On February 27, 2005 05:30 PM UTC

To avoid the problem, try this. If TextBox.SelectionStart == 0 and TextBox.SelectionLength == 0, just set e.Handled = true and do not call the baseclass.


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