Spread for ASP.NET 8.0 Product Documentation > Developer's Guide > Customizing the Appearance > Customizing the Appearance of the Sheet > Displaying a Footer for Columns or Groups |
You can show a column footer or a group footer or both for the sheet and put information in the footer such as formulas or text. The column footer is an area at the bottom of the sheet. The group footer is an extra row of footer cells under each group when grouping, if you are using the grouping feature.
For details on the API, refer to the ColumnFooter property of the SheetView class and the various members of the ColumnFooter class.
In order to calculate the column footer or group footer result with a formula, set the AggregationType property of the Column object to the correct formula type for that column. The Aggregate event is raised after setting this property and can be used to add information to column and group footers. The following figure displays a column footer with a formula in the first column:
The group footer is an extra row that is displayed below the group after grouping by a column header. The following figure shows the result of a sum formula in column A for each row below a group. The rows are grouped by the data in column A.
The Grouped or Grouping events can be used to set style information in the group footer after a user has created the group.
For more information on column appearance, refer to Customizing the Appearance of Rows and Columns.
For more information on grouping, refer to Customizing Grouping of Rows of User Data.
Set the Visible property of the ColumnFooter for the sheet.
This example code displays a column footer with a span, puts text in a cell, and sets the text color.
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FpSpread1.Sheets[0].RowCount = 10; FpSpread1.Sheets[0].ColumnCount = 15; // Show the column footer. FpSpread1.ActiveSheetView.ColumnFooter.Visible = true; FpSpread1.ActiveSheetView.ColumnFooter.RowCount = 2; FpSpread1.ActiveSheetView.ColumnFooter.DefaultStyle.ForeColor = Color.Purple; FpSpread1.ActiveSheetView.ColumnFooter.DefaultStyle.Border.BorderStyle = BorderStyle.Double; FpSpread1.ActiveSheetView.ColumnFooter.Columns[12].HorizontalAlign = HorizontalAlign.Left; FpSpread1.ActiveSheetView.ColumnFooter.Cells[0, 12].RowSpan = 2; FpSpread1.ActiveSheetView.ColumnFooter.Cells[0, 0].Value = "test"; |
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FpSpread1.Sheets(0).RowCount = 10 FpSpread1.Sheets(0).ColumnCount = 15 ' Show the footer. FpSpread1.ActiveSheetView.ColumnFooter.Visible = true FpSpread1.ActiveSheetView.ColumnFooter.RowCount = 2 FpSpread1.ActiveSheetView.ColumnFooter.DefaultStyle.ForeColor = Color.Purple FpSpread1.ActiveSheetView.ColumnFooter.DefaultStyle.Border.BorderStyle = BorderStyle.Double FpSpread1.ActiveSheetView.ColumnFooter.Columns(12).HorizontalAlign = HorizontalAlign.Left FpSpread1.ActiveSheetView.ColumnFooter.Cells(0, 12).RowSpan = 2 FpSpread1.ActiveSheetView.ColumnFooter.Cells(0, 0).Value = "test |
Set the AggregationType property for the column.
This example sums the values in the first column and displays them in the column and group footers.
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FpSpread1.Sheets[0].RowCount=8; FpSpread1.Sheets[0].ColumnCount = 15; this.FpSpread1.ActiveSheetView.GroupBarVisible = true; this.FpSpread1.ActiveSheetView.AllowGroup = true; this.FpSpread1.ActiveSheetView.GroupFooterVisible = true; this.FpSpread1.ActiveSheetView.ColumnFooter.Visible = true; this.FpSpread1.ActiveSheetView.ColumnFooter.RowCount = 2; this.FpSpread1.ActiveSheetView.ColumnFooter.DefaultStyle.Border.BorderStyle = BorderStyle.Double; this.FpSpread1.ActiveSheetView.ColumnFooter.Columns[12].HorizontalAlign = HorizontalAlign.Left; this.FpSpread1.ActiveSheetView.ColumnFooter.Cells[0, 12].RowSpan = 2; //Value for (int r = 0; r < this.FpSpread1.ActiveSheetView.RowCount; r++) { for (int j = 0; j < this.FpSpread1.ActiveSheetView.ColumnCount; j++) { FpSpread1.ActiveSheetView.DataModel.SetValue(r, j, j + r * FpSpread1.ActiveSheetView.ColumnCount); } } int i = 0; this.FpSpread1.ActiveSheetView.Columns[i].AggregationType = FarPoint.Web.Spread.Model.AggregationType.Sum; this.FpSpread1.ActiveSheetView.ColumnFooter.Cells[0, i].Value = "Sum"; this.FpSpread1.ActiveSheetView.ColumnFooter.Cells[1, i].Value = "Sum:[{0}]"; //Use the Grouped event to set style information protected void FpSpread1_Grouped(object sender, EventArgs e) { FarPoint.Web.Spread.Model.GroupFooter gf = default(FarPoint.Web.Spread.Model.GroupFooter); FarPoint.Web.Spread.GroupInfo gi = default(FarPoint.Web.Spread.GroupInfo); gf = ((FarPoint.Web.Spread.Model.GroupDataModel )FpSpread1.ActiveSheetView.DataModel).GetGroupFooter(2); gi = FpSpread1.ActiveSheetView.GetGroupFooterInfo(gf); gi.Font.Name = "Verdana"; gi.Font.Size = 8; gi.ForeColor = System.Drawing.Color.Red; } |
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FpSpread1.Sheets(0).RowCount = 8 FpSpread1.Sheets(0).ColumnCount = 15 FpSpread1.ActiveSheetView.GroupBarVisible = True FpSpread1.ActiveSheetView.AllowGroup = True FpSpread1.ActiveSheetView.GroupFooterVisible = True FpSpread1.ActiveSheetView.ColumnFooter.Visible = True FpSpread1.ActiveSheetView.ColumnFooter.RowCount = 2 FpSpread1.ActiveSheetView.ColumnFooter.DefaultStyle.Border.BorderStyle = BorderStyle.Double 'Value Dim r As Integer Dim j As Integer For r = 0 To FpSpread1.Sheets(0).RowCount For j = 0 To FpSpread1.Sheets(0).ColumnCount FpSpread1.ActiveSheetView.DataModel.SetValue(r, j, j + r * FpSpread1.ActiveSheetView.ColumnCount) Next j Next r Dim i As Integer i = 0 FpSpread1.ActiveSheetView.Columns(0).AggregationType = FarPoint.Web.Spread.Model.AggregationType.Sum FpSpread1.ActiveSheetView.ColumnFooter.Cells(0, i).Value = "Sum" FpSpread1.ActiveSheetView.ColumnFooter.Cells(1, i).Value = "Sum:[{0}]" 'Use the Grouped event to set style information Protected Sub FpSpread1_Grouped(ByVal sender As Object, ByVal e As System.EventArgs) Handles FpSpread1.Grouped Dim gf As FarPoint.Web.Spread.Model.GroupFooter Dim gi As FarPoint.Web.Spread.GroupInfo gf = CType(FpSpread1.ActiveSheetView.DataModel, FarPoint.Web.Spread.Model.GroupDataModel).GetGroupFooter(2) gi = FpSpread1.ActiveSheetView.GetGroupFooterInfo(gf) gi.Font.Name = "Verdana" gi.Font.Size = 8 gi.ForeColor = System.Drawing.Color.Red End Sub |