TableRowCollection.Clear Methode

Referenz

Definition

Namespace:: System.Web.UI.WebControls

Assembly:: System.Web.dll

Wichtig

Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.

Entfernt alle TableRow-Steuerelemente aus der TableRowCollection.

public:
 virtual void Clear();

public void Clear ();

abstract member Clear : unit -> unit
override this.Clear : unit -> unit

Public Sub Clear ()

Implementiert

Clear()

Beispiele

Im folgenden Beispiel wird veranschaulicht, wie Sie mithilfe der Clear -Methode alle TableRow Objekte aus der TableRowCollection Tabelle entfernen und durch neue TableRow Objekte ersetzen.

<%@ 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>

Hinweise

Verwenden Sie diese Methode, um alle TableRow Objekte aus dem TableRowCollection zu entfernen und die Count Eigenschaft auf 0 festzulegen.

Gilt für:

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