Public Property DataIndex As Integer

Dim instance As WorksheetLayoutCell
Dim value As Integer
 
instance.DataIndex = value
 
value = instance.DataIndex

public int DataIndex {get; set;}

protected void Page_Load(object sender, System.EventArgs e)
{
if (this.IsPostBack) return;
FpSpread1.ActiveSheetView.LayoutMode = FarPoint.Web.Spread.SheetView.LayoutModeType.RowTemplateLayoutMode;
FarPoint.Web.Spread.WorksheetTemplate template1 = FpSpread1.Sheets[0].WorksheetTemplate;
template1.ColumnCount = 3;
template1.ColumnHeaderTemplate.RowCount = 2;
template1.RowTemplate.RowCount = 2;
template1.LayoutColumns[1].Width = 250;
//Set row template's layout 
template1.RowTemplate.LayoutCells[1, 1].ColumnSpan = 2;
//set column header template's layout
template1.ColumnHeaderTemplate.LayoutCells[0, 0].RowSpan = 2;
template1.ColumnHeaderTemplate.LayoutCells[1, 1].ColumnSpan = 2;

DataTable dt = new DataTable();
dt.Columns.Add("ProductID");
dt.Columns.Add("ProductName");
dt.Columns.Add("Region");
dt.Columns.Add("Date");
dt.Columns.Add("Description");
dt.Rows.Add(new object[] { 21, "Computer", "China", "2010/1/1", "Using newest display adapter" });
dt.Rows.Add(new object[] { 36, "Notebook", "Vietnam", "2010/6/1", "Dell" });
dt.Rows.Add(new object[] { 13, "Hard disk", "Taiwan", "2011/1/1", "Speed is 7200" });
FpSpread1.Sheets[0].DataSource = dt;

template1.LayoutCells[0, 0].DataIndex = 0;
template1.LayoutCells[1, 0].DataIndex = 1;
template1.LayoutCells[0, 1].DataIndex = 2;
template1.LayoutCells[0, 2].DataIndex = 3;
template1.LayoutCells[1, 1].DataIndex = 4;

////Or set RowTemplate's mapping using an older method
//template1.RowTemplate.LayoutCells[0, 0].DataIndex = 0;
//template1.RowTemplate.LayoutCells[1, 0].DataIndex = 1;
//template1.RowTemplate.LayoutCells[0, 1].DataIndex = 2;
//template1.RowTemplate.LayoutCells[0, 2].DataIndex = 3;
//template1.RowTemplate.LayoutCells[1, 1].DataIndex = 4;
////Set ColumnHeaderTemplate's mapping using an older method
//template1.ColumnHeaderTemplate.LayoutCells[0, 0].DataIndex = 0;
//template1.RowTemplate.LayoutCells[1, 0].DataIndex = 1;              //this cell is span in ColumnHeader
//template1.ColumnHeaderTemplate.LayoutCells[0, 1].DataIndex = 2;
//template1.ColumnHeaderTemplate.LayoutCells[0, 2].DataIndex = 3;
//template1.ColumnHeaderTemplate.LayoutCells[1, 1].DataIndex = 4;
}

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If (IsPostBack) Then
    Return
End If
FpSpread1.ActiveSheetView.LayoutMode = FarPoint.Web.Spread.SheetView.LayoutModeType.RowTemplateLayoutMode
Dim template1 As FarPoint.Web.Spread.WorksheetTemplate = FpSpread1.Sheets(0).WorksheetTemplate
template1.ColumnCount = 3
template1.ColumnHeaderTemplate.RowCount = 2
template1.RowTemplate.RowCount = 2
template1.LayoutColumns(1).Width = 250
'Set row template's layout 
template1.RowTemplate.LayoutCells(1, 1).ColumnSpan = 2
'set column header template's layout
template1.ColumnHeaderTemplate.LayoutCells(0, 0).RowSpan = 2
template1.ColumnHeaderTemplate.LayoutCells(1, 1).ColumnSpan = 2

Dim dt As New DataTable()
dt.Columns.Add("ProductID")
dt.Columns.Add("ProductName")
dt.Columns.Add("Region")
dt.Columns.Add("Date")
dt.Columns.Add("Description")
dt.Rows.Add(New Object() {21, "Computer", "China", "2010/1/1", "Using newest display adapter"})
dt.Rows.Add(New Object() {36, "Notebook", "Vietnam", "2010/6/1", "Dell"})
dt.Rows.Add(New Object() {13, "Hard disk", "Taiwan", "2011/1/1", "Speed is 7200"})
FpSpread1.Sheets(0).DataSource = dt

template1.LayoutCells(0, 0).DataIndex = 0
template1.LayoutCells(1, 0).DataIndex = 1
template1.LayoutCells(0, 1).DataIndex = 2
template1.LayoutCells(0, 2).DataIndex = 3
template1.LayoutCells(1, 1).DataIndex = 4

'Set RowTemplate's mapping using an older method
'template1.RowTemplate.LayoutCells(0, 0).DataIndex = 0
'template1.RowTemplate.LayoutCells(1, 0).DataIndex = 1
'template1.RowTemplate.LayoutCells(0, 1).DataIndex = 2
'template1.RowTemplate.LayoutCells(0, 2).DataIndex = 3
'template1.RowTemplate.LayoutCells(1, 1).DataIndex = 4
'Set ColumnHeaderTemplate's mapping using an older method
'template1.ColumnHeaderTemplate.LayoutCells(0, 0).DataIndex = 0
'template1.RowTemplate.LayoutCells(1, 0).DataIndex = 1            'this cell is span in ColumnHeader
'template1.ColumnHeaderTemplate.LayoutCells(0, 1).DataIndex = 2
'template1.ColumnHeaderTemplate.LayoutCells(0, 2).DataIndex = 3
'template1.ColumnHeaderTemplate.LayoutCells(1, 1).DataIndex = 4
End Sub