RemoveRange

[Administrator]

Hello

I noticed that the Rows.Removerange method behave differently in Syncfusion 2.0.5.1 and 3.2.1

Actually when i want to clear my grid i call this method
Rows.Removerange (2,5) [i leave the 2 lines header]
Again as it work on 2.0.5.1 it does not on 3.2.0.1:
System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: rowIndex
at Syncfusion.Collections.SFTable.RemoveRows(Int32 rowIndex, Int32 count)
at Syncfusion.Windows.Forms.Grid.GridData.RemoveRows(Int32 rowIndex, Int32 count)
at Syncfusion.Windows.Forms.Grid.GridModelRowOperations.DataRemoveRange(Int32 removeAt, Int32 count)
at Syncfusion.Windows.Forms.Grid.GridModelRowColOperations.RemoveRange(Int32 from, Int32 last)
catched at Syncfusion.Windows.Forms.Grid.GridModelRowColOperations.RemoveRange(Int32 from, Int32 last) in :line 0

Thanks
John

[Administrator]

Are you using a GridControl, or a GridDataBoundGrid? The code you showed will not work with a GridDataBoundGrid. For that grid, try
using grid.Binder.RemoveRecords.

In a GridControl, if you want to remove all rows except the first 2, you can set grid.RowCount = 2.

[Administrator]

Actually i use an inherited GridControl Control

[Administrator]

I tried RemoveRange in a GridControl 3.2.1.0. The only way I can see that exception is if grid.RowCount is set such that the arguments passed in to RemoveRange are not valid.

So, you might check if your code is being hit twice. The first it works OK, but the second time it fails because the rows are already gone.

[Administrator]

Clay

You are right, i call it twice!

Since i use your first solution, i works fine !
(grid.RowCount = 2).

Thanks
Jonathan

[Administrator]

Actually, it does not work properly:
When i do a Rows.Removerange(3,3)

The row is grahically removed until a window is dragged over then...the line reappears...

[Administrator]

How do I see the problem in this sample?

http://www.syncfusion.com/Support/user/uploads/GC_RemoveRange_75d9b297.zip

Are there any exceptions being shown in your output window as you try this?

Are you trying to do this while there is an open call to grid.BeginUpdate? If so, later when you call grid.EndUpdate, make sure you call grid.Refresh.

[Administrator]

You''re right i call it inside a beginupdate/Endupdate.

But why should i call a refresh then ?

[Administrator]

Clay

This problem occured only in 3.2.1 not in 2.0.5

Do you have any idea if something changed since ?

Thanks
Jonathan

[Administrator]

Clay

This problem occured only in 3.2.1 not in 2.0.5

Do you have any idea if something changed since ?

Thanks
Jonathan

[Administrator]

There are many changes between 2.0 and 3.0. I am not sure what might have affected what you are doing.

As a check, does commenting out the BeginUpdate and EndUpdate make things work for you?

Instead of grid.Refresh, you might also get by just calling grid.ResetVolatileData. (This is one of several things that grid.Refresh does).