Clear Method (DefaultSheetDataModel)

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

Syntax

Visual Basic
C#

'Declaration
 
Public Sub Clear( _
   ByVal row As Integer, _
   ByVal column As Integer, _
   ByVal rowCount As Integer, _
   ByVal columnCount As Integer _
)

'Usage
 
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)

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.

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 Basic

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

Reference

DefaultSheetDataModel Class
DefaultSheetDataModel Members
ClearData Method
Copy Method
RemoveColumn Method
RemoveColumns Method
RemoveRow Method
RemoveRows Method
Swap Method
Move Method