How to show the FilterIcon while Mouse hover in WPF DataGrid (SfDataGrid)?

public class GridDataHeaderCellRendererExt : GridDataHeaderCellRenderer
{
    protected override Syncfusion.UI.Xaml.Grid.GridHeaderCellControl OnCreateEditUIElement()
    {
        return new GridHeaderCellControlExt();
    }
 
    public override void OnUpdateEditBinding(Syncfusion.UI.Xaml.Grid.DataColumnBase dataColumn, Syncfusion.UI.Xaml.Grid.GridHeaderCellControl element, object dataContext)
    {
        base.OnUpdateEditBinding(dataColumn, element, dataContext);
        element.FilterIconVisiblity = System.Windows.Visibility.Collapsed;
    }
}public class GridHeaderCellControlExt:GridHeaderCellControl
{
    public GridHeaderCellControlExt()
        : base()
    {
            
    }
 
    protected override void OnMouseEnter(System.Windows.Input.MouseEventArgs e)
    {
        base.OnMouseEnter(e);
 
        if(this.DataGrid.AllowFiltering && Column.AllowFiltering)
            this.FilterIconVisiblity = System.Windows.Visibility.Visible;
        else if(this.DataGrid.AllowFiltering && !Column.AllowFiltering)
            this.FilterIconVisiblity = System.Windows.Visibility.Collapsed;
        else if(!this.DataGrid.AllowFiltering && Column.AllowFiltering)
            this.FilterIconVisiblity = System.Windows.Visibility.Visible;
        else
            this.FilterIconVisiblity = System.Windows.Visibility.Collapsed;
    }
 
    protected override void OnMouseLeave(System.Windows.Input.MouseEventArgs e)
    {
        base.OnMouseLeave(e);
 
        if(Column.FilterPredicates.Count!=0)
            this.FilterIconVisiblity = System.Windows.Visibility.Visible;
        else
            this.FilterIconVisiblity = System.Windows.Visibility.Collapsed;
    }
}