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How to achieve expand and collapse behaviors with WinForms GroupBar?

Platform: WinForms |
Control: GroupBar |
Published Date: January 21, 2015 |
Last Revised Date: January 2, 2020

Expand and collapse

You can achieve expand and collapse behaviors of GroupBar like in Outlook2013 by handling the StateChanged event in GroupBar and the SplitterDistance property in SplitContainerAdv. You can refer to the following code example.

C#

private void groupBar1_StateChanged(object sender, EventArgs e)
{
    if (groupBar1.Size.Width > this.groupBar1.CollapsedWidth)
    {
        this.splitContainer1.SplitterDistance = this.groupBar1.Width;
    }
    else
    {
        this.splitContainer1.SplitterDistance = groupBar1.Width;
    }
}

 

VB

Private Sub groupBar1_StateChanged(ByVal sender As Object, ByVal e As EventArgs) Handles groupBar1.StateChanged
     If groupBar1.Size.Width > Me.groupBar1.CollapsedWidth Then
        Me.splitContainer1.SplitterDistance = Me.groupBar1.Width
     Else
        Me.splitContainer1.SplitterDistance = groupBar1.Width
     End If
End Sub 

You can refer to the following link for samples that illustrates the above code example.

Sample: http://www.syncfusion.com/uploads/user/directTrac/General/133562956378786.zip

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