Moving columns

[Administrator]

Hi,

I'm having an issue trying to find which code deals with the moving of columns ...

I'm having a weird issue that if I move any column before column 3 and then try to move it somewhere else I get the following error:

============================================
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at Syncfusion.Windows.Forms.Grid.Grouping.GroupDragHeaderMouseControllerBase.UpdateRedArrowIndicator()
at Syncfusion.Windows.Forms.Grid.Grouping.GridTableControlDragHeaderMouseController.MouseMove(MouseEventArgs e)
at Syncfusion.Windows.Forms.MouseControllerDispatcher.ProcessMouseMove(MouseEventArgs e)
at Syncfusion.Windows.Forms.Grid.Grouping.GridNestedTableControlCellRenderer.OnMouseMove(Int32 rowIndex, Int32 colIndex, MouseEventArgs e)
at Syncfusion.Windows.Forms.Grid.GridCellRendererBase.RaiseMouseMove(Int32 rowIndex, Int32 colIndex, MouseEventArgs e)
at Syncfusion.Windows.Forms.Grid.GridSelectCellsMouseController.MouseMove(MouseEventArgs e)
at Syncfusion.Windows.Forms.MouseControllerDispatcher.ProcessMouseMove(MouseEventArgs e)
at Syncfusion.Windows.Forms.ScrollControllMouseControllerDispatcher.ScrollControlMouseMoveHandled(Object sender, MouseEventArgs e)
at Syncfusion.Windows.Forms.ScrollControl.OnScrollControlHandledMouseMove(MouseEventArgs e)
at Syncfusion.Windows.Forms.ScrollControl.OnMouseMove(MouseEventArgs e)
at Syncfusion.Windows.Forms.Grid.GridControlBase.OnMouseMove(MouseEventArgs e)
at Syncfusion.Windows.Forms.Grid.Grouping.GridTableControl.OnMouseMove(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseMove(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at Syncfusion.Windows.Forms.ScrollControl.WndProc(Message& msg)
at Syncfusion.Windows.Forms.Grid.GridControlBase.WndProc(Message& msg)
at Syncfusion.Windows.Forms.Grid.Grouping.GridTableControl.WndProc(Message& msg)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
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Note: strangely if I move the original column 3 somewhere else and then move any column before the 'what now becomes the new' column 3 I don't get the issue.


Also somewhere in the code it has been fixed so that columns 1 and 2 can't be moved.

Note: I'm taking over someone else's code hence the question.

Thanks
Ian S.

[Sri Rajan]

Hi Ian,

Thank you for your interest in Syncfusion products.

Here is the code and minimal sample to move the columns of the GridGroupingControl programatically.

 this.gridGroupingControl1.TableDescriptor.VisibleColumns[1].Name = "Col4";
 this.gridGroupingControl1.TableDescriptor.VisibleColumns[4].Name = "Col1";
 this.gridGroupingControl1.TableDescriptor.VisibleColumns[2].Name = "Col0";
 this.gridGroupingControl1.TableDescriptor.VisibleColumns[0].Name = "Col2";

Sample:
http://websamples.syncfusion.com/samples/grid.windows/F74753/main.htm

Please try this and let me know if you are again having the same problem.

Best Regards,
Srirajan

[Administrator]

Hi there,

I found that this was due to a corrupt grid XML file.

Could you recommend an XML editor that can be used to manually edit the grid generated XML file?

Thanks
Ian S.

[Sri Rajan]

Hi Ian,

Thank you for your continued interest in Syncfusion products.

You can use notepad to edit XML files.

Please let me know if you have any further questions.

Best Regards,
Srirajan.