OnMouseDown Method (UltraTreeNodeColumnHeaderUIElement)

Called when the mouse down message is received over the element.

Syntax

Visual Basic

'Declaration
 
Protected Overrides Function OnMouseDown( _
   ByVal e As MouseEventArgs, _
   ByVal adjustableArea As Boolean, _
   ByRef captureMouseForElement As Infragistics.Win.UIElement _
) As Boolean

C#

protected override bool OnMouseDown( 
   MouseEventArgs e,
   bool adjustableArea,
   ref Infragistics.Win.UIElement captureMouseForElement
)

Parameters

e

Mouse event arguments

adjustableArea

True if left clicked over adjustable area of element.

captureMouseForElement

If not null on return will capture the mouse and forward all mouse messages to this element.

Return Value

If true then bypass default processing

Example

This sample uses GetDescendant to get a child UIElement of the main control. Then hit-tests it.

Visual Basic

Imports System.Windows.Forms
Imports Infragistics.Win
Imports System.Diagnostics

Private Sub ultraProgressBar1_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Handles MyBase.MouseDown
   
    ' Hit test for ProgressFillTextUIElement
    Dim fillTextUIElement As UIElement
 	fillTextUIElement = Me.ultraProgressBar1.UIElement.GetDescendant( _
		GetType(UltraWinProgressBar.ProgressFillTextUIElement))
    

    If Not fillTextUIElement Is Nothing Then
	  If fillTextUIElement.Contains(new Point(e.X,e.Y))
            Debug.WriteLine("Hit ProgressFillTextUIElement")
      End If
 		End If

End Sub

C#

using System.Windows.Forms;
	usingInfragistics.Win;
	usingSystem.Diagnostics;

private void ultraProgressBar1_MouseDown(object sender, MouseEventArgs e)
{

	// Hit test for ProgressFillTextUIElement

	UIElement fillTextUIElement = this.ultraProgressBar1.UIElement.GetDescendant(typeof(UltraWinProgressBar.ProgressFillTextUIElement));

	if(null != fillTextUIElement)
		if(fillTextUIElement.Contains(new Point(e.X,e.Y))
			Debug.WriteLine("Hit ProgressFillTextUIElement");

}

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