Hello Dominik,
Here is a custom filter cell class that adds a button to the right:
class MyFilterCellElement : GridFilterCellElement
{
public MyFilterCellElement(GridViewDataColumn column, GridRowElement row) : base(column, row)
{
}
protected override Type ThemeEffectiveType
{
get
{
return typeof(GridFilterCellElement);
}
}
RadButtonElement button = new RadButtonElement();
protected override void CreateChildElements()
{
base.CreateChildElements();
this.FilterButton.Margin = new Padding(-5, 0, 15, 0);
button.ZIndex = 100;
button.Text = "C";
button.Click += Button_Click;
this.Children.Add(button);
}
private void Button_Click(object sender, EventArgs e)
{
foreach (FilterDescriptor item in this.GridControl.FilterDescriptors.ToList())
{
if (item.PropertyName == this.ColumnInfo.FieldName)
{
this.GridControl.FilterDescriptors.Remove(item);
}
}
}
protected override SizeF ArrangeOverride(SizeF finalSize)
{
var res = base.ArrangeOverride(finalSize);
var rect = new RectangleF(res.Width - button.DesiredSize.Width, (res.Height - button.DesiredSize.Height) / 2, button.DesiredSize.Width, button.DesiredSize.Height);
button.Arrange(rect);
return res;
}
}
To change the cell you need to use the
CreateCell event:
I hope this will be useful.
Regards,
Dimitar
Telerik by Progress