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many QueryCellStyleInfo event raisede on column resize or mouse move

Thread ID:





48732 Sep 4,2006 08:27 AM UTC Sep 4,2006 02:22 PM UTC WinForms 3
Tags: Grouping
Asked On September 4, 2006 08:27 AM UTC

I noticed that the QueryCellStyleInfo event is being raised many times when the ggc is resize or the mouse is mouve over the grid. What gives?

Replied On September 4, 2006 08:54 AM UTC

doing this ...

int count = this.gridGroupingControl.TableDescriptor.VisibleColumns.Count;

before assigning Summary column seem to have fix it...


Administrator [Syncfusion]
Replied On September 4, 2006 09:28 AM UTC

Hi James,

The QueryCellStyleInfo is called whenever the grid needs a cell style for any reason. It should not be called for every cell if only one cell is changed from code. But if you move your mouse over the grid, it will be called as the mouse moves (the grid needs the cell style to do hittesting). Or, if you call Refresh or Invalidate then QueryCellIStylenfo would be hit more.

Let me know if this helps.
Best Regards,

Replied On September 4, 2006 02:22 PM UTC

Clicking the +- button to expand the grid causes it to be raise; should that happen? Are the any best practise for make this optimizable? is just seems to be that this would cause some major perf issue.


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