Hello Matt,
You can achieve your requirement by using a custom content cell for the group rows. You can hide the text of the cell, add and arrange separate elements for each column summary. Below is an example implementation of this custom cell:
public class CustomGroupContentCellElement : GridGroupContentCellElement
{
private LightVisualElement elementHeader;
private LightVisualElement elementSummary1;
private LightVisualElement elementSummary2;
public CustomGroupContentCellElement(GridViewColumn column, GridRowElement row)
: base(column, row)
{
}
public override object Value
{
get { return string.Empty; }
set { base.Value = value; }
}
public override void Initialize(GridViewColumn column, GridRowElement row)
{
base.Initialize(column, row);
GridViewGroupRowInfo rowInfo = (GridViewGroupRowInfo)base.RowInfo;
string headerText = rowInfo.HeaderText;
string summary = rowInfo.GetSummary();
string[] summaries = summary.Split(new char[] { ',' });
this.elementHeader.Text = headerText;
this.elementSummary1.Text = summaries[0];
this.elementSummary2.Text = summaries[1];
}
protected override void CreateChildElements()
{
base.CreateChildElements();
this.elementHeader = new LightVisualElement();
this.elementSummary1 = new LightVisualElement();
this.elementSummary2 = new LightVisualElement();
this.Children.Add(this.elementHeader);
this.Children.Add(this.elementSummary1);
this.Children.Add(this.elementSummary2);
}
protected override SizeF MeasureOverride(SizeF availableSize)
{
base.MeasureOverride(availableSize);
this.elementHeader.Measure(availableSize);
this.elementSummary1.Measure(availableSize);
this.elementSummary2.Measure(availableSize);
return availableSize;
}
protected override SizeF ArrangeOverride(SizeF finalSize)
{
IList<GridViewColumn> renderColumns = base.TableElement.ViewElement.RowLayout.RenderColumns;
int x1 = renderColumns[0].Width + renderColumns[1].Width;
int x2 = x1 + renderColumns[2].Width;
int x3 = x2 + renderColumns[3].Width;
this.Children[0].Arrange(new RectangleF(0, 0, 0, 0));
this.Children[1].Arrange(new RectangleF(x2, 0, 0, 0));
this.Children[2].Arrange(new RectangleF(x3, 0, 0, 0));
return finalSize;
}
}
You can use the
CreateCell event of
RadGridView to replace the
GridGroupContentCellElement with the custom cell:
I have used the following sample data to test this approach:
I hope it helps.
Best regards,
Alexander
the Telerik team