BeginUpdate Method (UltraControlBase)

Sets the IsUpdating flag to true which prevents painting.

Syntax

Visual Basic

'Declaration
 
Public Overridable Sub BeginUpdate() 

C#

public virtual void BeginUpdate()

Remarks

This is used to optimize performanance while setting a number of properties or adding a number of items (e.g. nodes in a tree control) so that all paint messages are ignored until EndUpdate is called.

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2