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TableCellCollection.GetCellIndex Method

Returns a value that represents the index of the specified TableCell from the TableCellCollection.

[Visual Basic]
Public Function GetCellIndex( _
   ByVal cell As TableCell _
) As Integer
[C#]
public int GetCellIndex(
 TableCell cell
);
[C++]
public: int GetCellIndex(
 TableCell* cell
);
[JScript]
public function GetCellIndex(
   cell : TableCell
) : int;

Parameters

cell
The TableCell to get the index of in the TableCellCollection.

Return Value

The index of the specified TableCell within the TableCellCollection. The default is -1, which indicates that a match has not been found.

Remarks

Use this method to determine the index of the specified TableCell in the TableCellCollection. If the specified TableCell is not found, an index of -1 is returned.

Example

[Visual Basic, C#] The following example demonstrates how to use the GetCellIndex property to display the column index of the selected cell.

[Visual Basic] 
<%@ Page Language="VB" AutoEventWireup="True" %>

<html>
 <head>
 
    <script runat="server">
 
        Sub Page_Load(sender As Object, e As EventArgs)
            
            Dim numrows As Integer = 5
            Dim numcells As Integer = 6
            Dim counter As Integer = 1
            Dim a_row As New ArrayList()
            Dim a_column As New ArrayList()
            
            ' Create a table.
            Dim j As Integer
            For j = 0 To numrows - 1
                Dim r As New TableRow()
                Dim i As Integer
                For i = 0 To numcells - 1
                    Dim c As New TableCell()
                    c.Text = counter.ToString()
                    r.Cells.Add(c)
                    counter += 1
                Next i
                Table1.Rows.Add(r)
            Next j
            
            If Not IsPostBack Then
                
                ' Create a DropDownList for the number of rows.
                Dim k As Integer
                For k = 0 To numrows - 1
                    a_row.Add(k.ToString())
                Next k
                
                ' Create a DropDownList for the number of columns.
                Dim l As Integer
                For l = 0 To numcells - 1
                    a_column.Add(l.ToString())
                Next l
                
                List1.DataSource = a_row
                List2.DataSource = a_column
                List1.DataBind()
                List2.DataBind()
            End If
        End Sub

        Sub Button_Click(sender As Object, e As EventArgs)
            Dim row As Integer = List1.SelectedIndex
            Dim column As Integer = List2.SelectedIndex
            Dim cell As TableCell = Table1.Rows(row).Cells(column)
            
            Label1.Text = "The column index of the selected cell is " & _
                Table1.Rows(row).Cells.GetCellIndex(cell).ToString()
        End Sub
 
    </script>
 
 </head>
 
 <body>
 
    <h3>TableCellCollection Example</h3>
    <form runat=server>
       <asp:Table id="Table1" 
            runat="server"/>
       <br><br>
       <center>
          Select a cell:
          <br><br>
          Row:
          <asp:DropDownList id="List1" 
               runat="server"/>
          Column:
          <asp:DropDownList id="List2"
               runat="server"/>
          <br><br>
          <asp:Button id="Button1"
               Text="Get Index"
               OnClick="Button_Click"
               runat="server"/>
          <br><br>
          <asp:Label id="Label1"
               runat="server"/>
 
       </center>
 
    </form>
 
 </body>
 </html>
    

[C#] 
<%@ Page Language="C#" AutoEventWireup="True" %>

<html>
 <head>
 
    <script runat="server">
 
       void Page_Load(Object sender, EventArgs e) 
       {
          
          int numrows = 5;
          int numcells = 6;
          int counter = 1;
          ArrayList a_row = new ArrayList();
          ArrayList a_column = new ArrayList();
          
          // Create a table.
          for (int j=0; j<numrows; j++) 
          {          
             TableRow r = new TableRow();
             for (int i=0; i<numcells; i++) 
             {
                TableCell c = new TableCell();
                c.Text = counter.ToString();
                r.Cells.Add(c);
                counter++;
             }
             Table1.Rows.Add(r);
          }
         
          if (!IsPostBack) 
          {
 
             // Create a DropDownList for the number of rows.
             for (int k=0; k<numrows; k++) 
             {
                a_row.Add(k.ToString());
             }
          
             // Create a DropDownList for the number of columns.
             for (int l=0; l<numcells; l++) 
             {
                a_column.Add(l.ToString());
             }
         
             List1.DataSource=a_row;
             List2.DataSource=a_column;  
             List1.DataBind();
             List2.DataBind();  
          }
       }
 
    void Button_Click(object sender, EventArgs e) 
    {
       int row = List1.SelectedIndex;
       int column = List2.SelectedIndex;
       TableCell cell = Table1.Rows[row].Cells[column];
       
       Label1.Text = "The column index of the selected cell is " +
                     Table1.Rows[row].Cells.GetCellIndex(cell).ToString();
             
    }
 
    </script>
 
 </head>
 
 <body>
 
    <h3>TableCellCollection Example</h3>
    <form runat=server>
       <asp:Table id="Table1" 
            runat="server"/>
       <br><br>
       <center>
          Select a cell:
          <br><br>
          Row:
          <asp:DropDownList id="List1" 
               runat="server"/>
          Column:
          <asp:DropDownList id="List2"
               runat="server"/>
          <br><br>
          <asp:Button id="Button1"
               Text="Get Index"
               OnClick="Button_Click"
               runat="server"/>
          <br><br>
          <asp:Label id="Label1"
               runat="server"/>
 
       </center>
 
    </form>
 
 </body>
 </html>
    

[C++, JScript] No example is available for C++ or JScript. To view a Visual Basic or C# example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 2000, Windows XP Professional, Windows Server 2003 family

See Also

TableCellCollection Class | TableCellCollection Members | System.Web.UI.WebControls Namespace | TableCell

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