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RadMultiColumnComboBoxOnDropDownOpening Method
Raises the DropDownOpening event.

Namespace: Telerik.WinControls.UI
Assembly: Telerik.WinControls.GridView (in Telerik.WinControls.GridView.dll) Version: 2018.3.911.40 (2018.3.911.40)
Syntax
[EditorBrowsableAttribute(EditorBrowsableState.Advanced)]
protected virtual void OnDropDownOpening(
	CancelEventArgs e
)

Parameters

e
Type: System.ComponentModelCancelEventArgs
An instance of the CancelEventArgs which contains information about the event.
See Also