TableRowCollection.Item[Int32] Propiedad
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Obtiene un TableRow objeto de en el TableRowCollection índice especificado.
public:
property System::Web::UI::WebControls::TableRow ^ default[int] { System::Web::UI::WebControls::TableRow ^ get(int index); };public System.Web.UI.WebControls.TableRow this[int index] { get; }member this.Item(int) : System.Web.UI.WebControls.TableRowDefault Public ReadOnly Property Item(index As Integer) As TableRowParámetros
- index
- Int32
Valor de índice ordinal que especifica qué TableRow objeto se va a devolver. Este índice está basado en cero.
Valor de propiedad
que TableRow representa un elemento de .TableRowCollection
Ejemplos
En el ejemplo siguiente se muestra cómo usar el indexador para obtener un TableRow elemento de .TableRowCollection Tenga en cuenta que, en el ejemplo, la Rows propiedad de Table es una instancia de la TableRowCollection clase .
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load(Object sender, EventArgs e)
{
int numRows = 5;
int numCells = 6;
int counter = 1;
// Create a table.
for (int rowNum = 0; rowNum < numRows; rowNum++)
{
TableRow rw = new TableRow();
for (int cellNum = 0; cellNum < numCells; cellNum++)
{
TableCell cel = new TableCell();
cel.Text = counter.ToString();
if (cellNum == List2.SelectedIndex)
cel.BackColor = System.Drawing.Color.Chartreuse;
else if (rowNum == List1.SelectedIndex)
cel.BackColor = System.Drawing.Color.CadetBlue;
else
cel.BackColor = System.Drawing.Color.White;
rw.Cells.Add(cel);
counter++;
}
Table1.Rows.Add(rw);
}
if (!IsPostBack)
{
// Fill a DropDownList with row numbers
for (int rowNum = 0; rowNum < numRows; rowNum++)
{
List1.Items.Add(rowNum.ToString());
}
// Fill a DropDownList with column numbers
for (int cellNum = 0; cellNum < numCells; cellNum++)
{
List2.Items.Add(cellNum.ToString());
}
}
}
void Button_Click(object sender, EventArgs e)
{
int rowNum = List1.SelectedIndex;
TableRow rw = Table1.Rows[rowNum];
Label1.Text = "The row index of the selected cell is " +
Table1.Rows.GetRowIndex(rw).ToString();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>TableCellCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>TableCellCollection Example</h3>
<asp:Table id="Table1" runat="server" />
<br /> <br />
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" />
</div>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim numRows As Integer = 5
Dim numCells As Integer = 6
Dim cellNum As Integer
Dim counter As Integer = 1
' Create a table.
Dim rowNum As Integer
For rowNum = 0 To numRows - 1
Dim rw As New TableRow()
For cellNum = 0 To numCells - 1
Dim cel As New TableCell()
cel.Text = counter.ToString()
If cellNum = List2.SelectedIndex Then
cel.BackColor = System.Drawing.Color.Chartreuse
ElseIf rowNum = List1.SelectedIndex Then
cel.BackColor = System.Drawing.Color.CadetBlue
Else
cel.BackColor = System.Drawing.Color.White
End If
rw.Cells.Add(cel)
counter += 1
Next cellNum
Table1.Rows.Add(rw)
Next rowNum
If Not IsPostBack Then
' Fill a DropDownList with row numbers
For rowNum = 0 To numRows - 1
List1.Items.Add(rowNum.ToString())
Next rowNum
' Fill a DropDownList with column numbers
For cellNum = 0 To numCells - 1
List2.Items.Add(cellNum.ToString())
Next cellNum
End If
End Sub
Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim rowNum As Integer = List1.SelectedIndex
Dim rw As TableRow = Table1.Rows(rowNum)
Label1.Text = "The row index of the selected cell is " & _
Table1.Rows.GetRowIndex(rw).ToString()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>TableCellCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>TableCellCollection Example</h3>
<asp:Table id="Table1" runat="server" />
<br /> <br />
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" />
</div>
</form>
</body>
</html>
Comentarios
Use este indexador para obtener un individuo TableRow de en el TableRowCollection índice especificado mediante la notación de matriz simple.
