TreeScrollEventHandler Delegate

Delegate for the UltraTree.Scroll event handler

Syntax

Visual Basic

'Declaration
 
Public Delegate Sub TreeScrollEventHandler( _
   ByVal sender As Object, _
   ByVal e As TreeScrollEventArgs _
) 

C#

public delegate void TreeScrollEventHandler( 
   object sender,
   TreeScrollEventArgs e
)

Parameters

sender

e

Example

The following sample code illustrates some of the information available in the Scroll event.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Visual Basic

Imports Infragistics.Win.UltraWinTree

Private Sub ultraTree1_Scroll(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinTree.TreeScrollEventArgs) Handles ultraTree1.Scroll

    Dim sb As New System.Text.StringBuilder()

    sb.Append("The tree has scrolled. ScrollbarType :")
    sb.Append(e.ScrollBarType)
    sb.Append(" ScrollEventType: ")
    sb.Append(e.ScrollEventArgs.Type)
    sb.Append(" new value: ")
    sb.Append(e.ScrollEventArgs.NewValue)

    Debug.WriteLine(sb.ToString())

End Sub

C#

using System.Diagnostics;
using Infragistics.Win.UltraWinTree;

private void ultraTree1_Scroll(object sender, Infragistics.Win.UltraWinTree.TreeScrollEventArgs e)
{

	System.Text.StringBuilder sb = new System.Text.StringBuilder();

	sb.Append("The tree has scrolled. ScrollbarType :");
	sb.Append(e.ScrollBarType);
	sb.Append(" ScrollEventType: ");
	sb.Append(e.ScrollEventArgs.Type);
	sb.Append(" new value: ");
	sb.Append(e.ScrollEventArgs.NewValue);

	Debug.WriteLine( sb.ToString() );
		
}

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