Problem with the Docking Manager

Question

Hi,

I have a problem with the docking manager in that 
it displays the error message 

System.ArgumentOutOfRangeException

Index out of range Must be non negative and less that the size of the collection

I have enclosed a small example to show the issue.

The line that fails is 

this.dockingManager.DockControl(this.tabConfig, this, 
				Syncfusion.Windows.Forms.Tools.DockingStyle.Left, 150);

but I dont know why.

TIA

WindowsApplication10_9159.zip

Vijayanand S · Answer

Hi Steven,
              
        This is not created by the Docking Manager. Please change the coding "this.groupBar1.SelectedItem = 3;" into "this.groupBar1.SelectedItem = 0;" in the TabConfiguratorUserControl.cs file.  Since GroupBar has only one GroupBarItem in that control, the ArgumentOutOfRange exception occurs.
 
        Please take a look at the modified sample  and let me know if it helps. 
 
        Thanks for your patience.
 
Best Regards
Vijay