How to change the size of scrollbars on demand in WinForms GridGroupingControl?

Scrolling

To customize the size of scrollbars in the WinForms GridControl, use the InnerScrollBar.Width and InnerScrollBar.Height properties of ScrollBarWrapper class.

public Form1()
{   
    this.gridGroupingControl1.TableControl.HScroll = true;
    this.gridGroupingControl1.ableControl.VScroll = true;
    if (gridGroupingControl1.TableControl.HScrollBar.InnerScrollBar != null && this.gridGroupingControl1.TableControl.VScrollBar.InnerScrollBar != null)
    {
        this.gridGroupingControl1.TableControl.VScrollBar.InnerScrollBar.Width = 50;
        this.gridGroupingControl1.TableControl.HScrollBar.InnerScrollBar.Height = 50;
    }
}

Public Sub New() 
     Me.gridGroupingControl1.TableControl.HScroll = True
     Me.gridGroupingControl1.TableControl.VScroll = True 
     If gridGroupingControl1.TableControl.HScrollBar.InnerScrollBar IsNot Nothing AndAlso Me.gridGroupingControl1.TableControl.VScrollBar.InnerScrollBar IsNot Nothing Then
        Me.gridGroupingControl1.TableControl.VScrollBar.InnerScrollBar.Width = 50
        Me.gridGroupingControl1.TableControl.HScrollBar.InnerScrollBar.Height = 50
     End If
End Sub

To customize the size of scrollbars at runtime, use the TableControl.ControlAdded event. In that event, the VScollBar and HScrollBar controls can be get by using the e.Control property.

//Event Subscription
this.gridGroupingControl1.TableControl.ControlAdded += TableControl_ControlAdded;
 
//Event customization
private void TableControl_ControlAdded(object sender, ControlEventArgs e)
{
    HScrollBarCustomDraw hscrollBar = e.Control as HScrollBarCustomDraw;
    VScrollBarCustomDraw vScollBar = e.Control as VScrollBarCustomDraw;
    if (hscrollBar != null)
    {
        hscrollBar.Height = 50;
    }

    if (vScollBar != null)
    {
        vScollBar.Width = 50;
    }
}

'Event Subscription
AddHandler Me.gridGroupingControl1.TableControl.ControlAdded, AddressOf TableControl_ControlAdded
 
'Event customization
Private Sub TableControl_ControlAdded(ByVal sender As Object, ByVal e As ControlEventArgs)
    Dim hscrollBar As HScrollBarCustomDraw = TryCast(e.Control, HScrollBarCustomDraw)
    Dim vScollBar As VScrollBarCustomDraw = TryCast(e.Control, VScrollBarCustomDraw)
    If hscrollBar IsNot Nothing Then
      hscrollBar.Height = 50
    End If
    If vScollBar IsNot Nothing Then
      vScollBar.Width = 50
    End If
End Sub