TableRowCollection.Clear 方法
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
將所有 TableRow 控制項從 TableRowCollection 移除。
public:
virtual void Clear();public void Clear ();abstract member Clear : unit -> unit
override this.Clear : unit -> unitPublic Sub Clear ()實作
範例
下列範例示範如何使用 Clear 方法，從TableRowCollection數據表的 中移除所有TableRow物件，並將其取代為新的 TableRow 物件。
<%@ 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">
int numrows = 5;
int numcells = 6;
int counter = 1;
void Page_Load(Object sender, EventArgs e)
{
// 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();
counter++;
rw.Cells.Add(cel);
}
Table1.Rows.Add(rw);
}
Table1.GridLines = GridLines.Both;
Table1.CellPadding = 4;
Table1.CellSpacing = 0;
}
void Button_Click(Object sender, EventArgs e)
{
// Clear the table.
Table1.Rows.Clear();
// Create new rows and cells.
for (int rowNum = 0; rowNum < numrows; rowNum++)
{
TableRow rw = new TableRow();
for (int cellNum = 0; cellNum < numcells; cellNum++)
{
TableCell cel = new TableCell();
cel.Text = "***";
rw.Cells.Add(cel);
}
Table1.Rows.Add(rw);
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Programmatic Table</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>Programmatic Table Example</h3>
<asp:Table id="Table1" runat="server"/>
<asp:Button id="Button1"
Text="Replace All Rows With ***"
OnClick="Button_Click"
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">
Dim numrows As Integer = 5
Dim numcells As Integer = 6
Dim counter As Integer = 1
Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
' Create a table.
Dim rowNum As Integer
For rowNum = 0 To numrows - 1
Dim rw As New TableRow()
Dim cellNum As Integer
For cellNum = 0 To numcells - 1
Dim cel As New TableCell()
cel.Text = counter.ToString()
counter += 1
rw.Cells.Add(cel)
Next
Table1.Rows.Add(rw)
Table1.GridLines = GridLines.Both
Table1.CellPadding = 4
Table1.CellSpacing = 0
Next
End Sub
Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)
' Clear the table.
Table1.Rows.Clear()
' Create new rows and cells.
Dim rowNum As Integer
For rowNum = 0 To numrows - 1
Dim rw As New TableRow()
Dim cellNum As Integer
For cellNum = 0 To numcells - 1
Dim cel As New TableCell()
cel.Text = "***"
rw.Cells.Add(cel)
Next
Table1.Rows.Add(rw)
Next
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Programmatic Table</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>Programmatic Table Example</h3>
<asp:Table id="Table1" runat="server"/>
<asp:Button id="Button1"
Text="Replace All Rows With ***"
OnClick="Button_Click"
runat="server"/>
</div>
</form>
</body>
</html>
備註
使用這個方法可從 中移除所有 TableRow 物件 TableRowCollection ，並將 屬性設定 Count 為 0。
