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Syncfusion Feedback

InsertRange poor performance

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76948 Sep 30,2008 04:45 PM UTC Oct 16,2008 08:33 PM UTC WinForms 2
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Tags: GridControl
Tim Mostad
Asked On September 30, 2008 04:45 PM UTC

The following line in a custom grid control derived from GridControl is consuming 73% of the time in a critical section of code:

Me.Rows.InsertRange(CInt(RowLocation), 1)

InsertColumn is also very slow. Is there some way to improve performance?




Administrator [Syncfusion]
Replied On October 1, 2008 07:34 PM UTC

Is the InsertRange call being done repeatedly? If so, you might try bracketing your calls with BeginUpdate/EndUpdate to see that makes things faster.

Me.BeginUpdate()

'do all your inserts...
Me.Rows.InsertRange(CInt(RowLocation), 1)
'...
Me.Rows.InsertRange(CInt(RowLocation), 1)
'...

Me.EndUpdate()
Me.Refresh()


Another thing you might try is to set:

OptimizeInsertRemoveCells = True



Tim Mostad
Replied On October 16, 2008 08:33 PM UTC

Both of these made a huge difference in the performance of my app. Thanks!


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