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TableRowCollection.GetRowIndex Method

Returns a value that represents the index of the specified TableRow from the TableRowCollection.

[Visual Basic]
Public Function GetRowIndex( _
   ByVal row As TableRow _
) As Integer
[C#]
public int GetRowIndex(
 TableRow row
);
[C++]
public: int GetRowIndex(
 TableRow* row
);
[JScript]
public function GetRowIndex(
   row : TableRow
) : int;

Parameters

row
The TableRow to search for in the TableRowCollection.

Return Value

The ordinal index position of the specified TableRow within the collection. The default is -1, which indicates that the specified TableRow has not been found.

Remarks

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

Example

[Visual Basic, C#] The following example demonstrates how to use the GetRowIndex property to display the row 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 tbl_row As TableRow = Table1.Rows(row)
            
            Label1.Text = "The row index of the selected cell is " & _
                Table1.Rows.GetRowIndex(tbl_row).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;
       TableRow tbl_row = Table1.Rows[row];
       
       Label1.Text = "The row index of the selected cell is " +
                     Table1.Rows.GetRowIndex(tbl_row).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

TableRowCollection Class | TableRowCollection Members | System.Web.UI.WebControls Namespace | TableRow

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