HtmlTableRowCollection.Clear Método
Definição
Importante
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Remove todos os objetos HtmlTableRow da coleção HtmlTableRowCollection.
public:
void Clear();public void Clear ();member this.Clear : unit -> unitPublic Sub Clear ()Exemplos
O exemplo de código a seguir demonstra como usar o Clear método para remover todos os itens da HtmlTableRowCollection coleção. Em seguida, novas entradas são adicionadas à coleção e exibidas no HtmlTable controle.
<%@ Page Language="C#" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Button_Click(Object sender, EventArgs e)
{
// Clear the rows from the table.
Table1.Rows.Clear();
// Create a new table.
// Iterate through the rows.
for (int j = 0; j < 5; j++)
{
// Create a new row and add it to the Rows collection.
HtmlTableRow row = new HtmlTableRow();
// Provide a different background color for alternating rows.
if (j % 2 == 1)
row.BgColor = "Gray";
// Iterate through the cells of a row.
for (int i = 0; i < 5; i++)
{
// Create a new cell and add it to the Cells collection.
HtmlTableCell cell = new HtmlTableCell();
cell.Controls.Add(new LiteralControl("row " +
j.ToString() +
", cell " +
i.ToString()));
row.Cells.Add(cell);
}
Table1.Rows.Add(row);
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>HtmlTableRowCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>HtmlTableRowCollection Example</h3>
<table id="Table1" runat="server"
style="border-width: 1; border-color: Black">
<tr>
<td>
Cell 1
</td>
<td>
Cell 2
</td>
</tr>
<tr>
<td>
Cell 3
</td>
<td>
Cell 4
</td>
</tr>
</table>
<br /><br />
<input type="button"
value="Create New Table"
onserverclick="Button_Click"
runat="server"/>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim i As Integer
Dim j As Integer
Dim row As HtmlTableRow
Dim cell As HtmlTableCell
' Clear the rows from the table.
Table1.Rows.Clear()
' Create a new table.
' Iterate through the rows.
For j = 0 To 4
' Create a new row and add it to the Rows collection.
row = New HtmlTableRow()
' Provide a different background color for alternating rows.
If (j Mod 2) = 1 Then
row.BgColor = "Gray"
End If
' Iterate through the cells of a row.
For i = 0 To 4
' Create a new cell and add it to the Cells collection.
cell = New HtmlTableCell()
cell.Controls.Add(New LiteralControl("row " & _
j.ToString() & _
", cell " & _
i.ToString()))
row.Cells.Add(cell)
Next i
Table1.Rows.Add(row)
Next j
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>HtmlTableRowCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>HtmlTableRowCollection Example</h3>
<table id="Table1" runat="server"
style="border-width: 1; border-color: Black">
<tr>
<td>
Cell 1
</td>
<td>
Cell 2
</td>
</tr>
<tr>
<td>
Cell 3
</td>
<td>
Cell 4
</td>
</tr>
</table>
<br /><br />
<input type="button"
value="Create New Table"
onserverclick="Button_Click"
runat="server"/>
</form>
</body>
</html>
Comentários
Use este método para remover todos os HtmlTableRow objetos da HtmlTableRowCollection coleção e redefinir a Count propriedade para 0.