CheckStateChanging Event

Occurs before the tree node checkbox is checked. Allows to cancel the change.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<C1CategoryAttribute("Behavior")>
<C1DescriptionAttribute("Occurs before the tree node check box is checked. Allows to cancel the change.")>
Public Event CheckStateChanging As C1TreeViewCancelEventHandler

'Usage
 
Dim instance As C1TreeView
Dim handler As C1TreeViewCancelEventHandler
 
AddHandler instance.CheckStateChanging, handler

[C1Category("Behavior")]
[C1Description("Occurs before the tree node check box is checked. Allows to cancel the change.")]
public event C1TreeViewCancelEventHandler CheckStateChanging

[C1Category("Behavior")]
[C1Description("Occurs before the tree node check box is checked. Allows to cancel the change.")]
public:
event C1TreeViewCancelEventHandler^ CheckStateChanging

Event Data

The event handler receives an argument of type C1TreeViewCancelEventArgs containing data related to this event. The following C1TreeViewCancelEventArgs properties provide information specific to this event.

Property	Description
Cancel	(Inherited from System.ComponentModel.CancelEventArgs)
Node	Gets the tree node that has been checked, expanded, collapsed, or selected.

Requirements

Target Platforms: 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

Reference

C1TreeView Class
C1TreeView Members