Spread ASP.NET 6.0 Product Documentation
Clear Method
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FarPoint.Web.Spread Assembly > FarPoint.Web.Spread.Model Namespace > DefaultSheetDataModel Class : Clear Method


row
Row index of start of range to clear
column
Column index of start of range to clear
rowCount
Number of rows to clear
columnCount
Number of columns to clear

Glossary Item Box

Removes all the data and formulas from the specified range of cells.

Syntax

Visual Basic (Declaration) 
Public Sub Clear( _
   ByVal row As Integer, _
   ByVal column As Integer, _
   ByVal rowCount As Integer, _
   ByVal columnCount As Integer _
)
Visual Basic (Usage)Copy Code
Dim instance As DefaultSheetDataModel
Dim row As Integer
Dim column As Integer
Dim rowCount As Integer
Dim columnCount As Integer
 
instance.Clear(row, column, rowCount, columnCount)
C# 
public void Clear( 
   int row,
   int column,
   int rowCount,
   int columnCount
)

Parameters

row
Row index of start of range to clear
column
Column index of start of range to clear
rowCount
Number of rows to clear
columnCount
Number of columns to clear

Remarks

As an example, suppose you wanted to clear data for the range of cells from B2 to E4. You would set the column and row parameters to 2, the rowCount parameter to 2, and the columnCount parameter to 3.

Clearing data in the data model clears the data, including the formula, the cell note, and the cell tag. Formatting is not handled by the data model, so calling the Clear method in the data model does not clear formatting, including things such as colors.

To clear just the data, and not the formula, cell note, or cell tag, if present, use the ClearData method.

Example

This example adds data to the first three columns. In the click event of a button the data is cleared from the first two columns.
C#Copy Code
private void Page_Load(object sender, System.EventArgs e)
{
    if (this.IsPostBack) return;

    FpSpread1.ActiveSheetView.RowCount = 10;
    for (int i = 0; i<10; i++)
    {
        FpSpread1.ActiveSheetView.SetValue(i, 0, i);
        FpSpread1.ActiveSheetView.SetValue(i, 1, i);
        FpSpread1.ActiveSheetView.SetValue(i, 2, i);
    }
}

private void Button1_Click(object sender, System.EventArgs e)
{
    FarPoint.Web.Spread.Model.DefaultSheetDataModel dm = (FarPoint.Web.Spread.Model.DefaultSheetDataModel)FpSpread1.ActiveSheetView.DataModel;
    dm.Clear(0, 0, 10, 2);
}
Visual BasicCopy Code
 Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

   If (Me.IsPostBack) Then Return

   FpSpread1.ActiveSheetView.RowCount = 10
   Dim i As Integer
   For i = 0 To 9
     FpSpread1.ActiveSheetView.SetValue(i, 0, i)
     FpSpread1.ActiveSheetView.SetValue(i, 1, i)
     FpSpread1.ActiveSheetView.SetValue(i, 2, i)
   Next

 End Sub


 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
   Dim dm As FarPoint.Web.Spread.Model.DefaultSheetDataModel = CType(FpSpread1.ActiveSheetView.DataModel, FarPoint.Web.Spread.Model.DefaultSheetDataModel)
   dm.Clear(0, 0, 10, 2)
 End Sub

Requirements

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

See Also

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