Gone2TheDogs
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Gone2TheDogs
asked on 18 Mar 2019, 03:59 PM
I've looked at other posts, but I didn't see where I went wrong.
(review attached screenshot for a better understanding)
In my situation, I add background color to row cells where this is an "A" value in the cell. This stands for an aisle in a warehouse.
If you scroll slowly, then the background color stays within the rows with an "A", but if you scroll too fast, the display shows green in various cells. Also, if I clear the grid and rebuild it with new data, the background color is not reset. The previous rows that were green are still green.
What am I missing?
01.Private Sub dgvMain_CellFormatting(sender As Object, e As CellFormattingEventArgs) Handles dgvMain.CellFormatting02. If _LeftOrRightConveyor = "LEFT" And e.CellElement.ColumnIndex = AisleColumnLeft_Idx Then03. e.CellElement.BackColor = System.Drawing.Color.LightGreen04. ElseIf _LeftOrRightConveyor = "RIGHT" And e.CellElement.ColumnIndex = AisleColumnRight_Idx Then05. e.CellElement.BackColor = System.Drawing.Color.LightGreen06. End If07. 08. If e.CellElement.Value = "A" Then09. e.CellElement.BackColor = System.Drawing.Color.Lime10. End If11.End Sub3 Answers, 1 is accepted
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Hi,
The RadGridView control is virtualized and the cell elements are being reused to show different data items. Detailed information on the UI virtualization is available here:
Due to the virtualization, it is required to provide an Else clause in the formatting events so that the styles set on a cell element are reset when this element gets synchronized with a different data item. You can consider resetting the back color similarly as demonstrated here: https://docs.telerik.com/devtools/winforms/controls/gridview/cells/formatting-cells.
I hope this will help. Let me know if you need further assistance.
Regards,
Hristo
Progress Telerik
The RadGridView control is virtualized and the cell elements are being reused to show different data items. Detailed information on the UI virtualization is available here:
- https://docs.telerik.com/devtools/winforms/controls/gridview/fundamentals/ui-virtualization
- https://docs.telerik.com/devtools/winforms/controls/gridview/fundamentals/logical-vs.-visual-grid-structure
Due to the virtualization, it is required to provide an Else clause in the formatting events so that the styles set on a cell element are reset when this element gets synchronized with a different data item. You can consider resetting the back color similarly as demonstrated here: https://docs.telerik.com/devtools/winforms/controls/gridview/cells/formatting-cells.
I hope this will help. Let me know if you need further assistance.
Regards,
Hristo
Progress Telerik
Get quickly onboarded and successful with your Telerik and/or Kendo UI products with the Virtual Classroom free technical training, available to all active customers. Learn More.
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Gone2TheDogs
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answered on 19 Mar 2019, 10:23 AM
Right there in the documentation in plain view. I appreciate your bringing it to my attention.
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Hello Bob,
I am glad that I managed to help. Let me know if you need further assistance.
Regards,
Hristo
Progress Telerik
I am glad that I managed to help. Let me know if you need further assistance.
Regards,
Hristo
Progress Telerik
Get quickly onboarded and successful with your Telerik and/or Kendo UI products with the Virtual Classroom free technical training, available to all active customers. Learn More.