TableCellCollection.Clear Méthode

  • Référence

Définition

Espace de noms:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Supprime tous les objets TableCell de TableCellCollection.

public:
 virtual void Clear();
public void Clear ();
abstract member Clear : unit -> unit
override this.Clear : unit -> unit
Public Sub Clear ()

Implémente

Clear()

Exemples

L’exemple suivant montre comment utiliser la Clear méthode pour supprimer tous les TableCell objets de la ligne centrale de la table et les remplacer par de nouveaux TableCell objets.

<%@ 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;
 
    private 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);
        }
    }

    private void Button_Click(Object sender, EventArgs e)
    {
        Table1.Rows[2].Cells.Clear();
        for (int cellNum = 0; cellNum < numcells; cellNum++) 
        {
            TableCell cel = new TableCell();
            cel.Text="***";
            Table1.Rows[2].Cells.Add(cel); 
        }
    }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>TableCellCollection Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <h3>TableCellCollection Example</h3>
    <asp:Table id="Table1" runat="server" />
 
    <asp:Button id="Button1"
         Text="Replace Row 3 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(sender As Object, 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)
        Next
    End Sub         

    Sub Button_Click(sender As Object, e As EventArgs)
        Table1.Rows(2).Cells.Clear()
        Dim cellNum As Integer
        For cellNum = 0 To numcells - 1
            Dim cel As New TableCell()
            cel.Text = "***"
            Table1.Rows(2).Cells.Add(cel)
        Next
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>TableCellCollection Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <h3>TableCellCollection Example</h3>
    <asp:Table id="Table1" runat="server" />
    <p>&nbsp;</p>
    <asp:Button id="Button1"
         Text="Replace Row 3 With ***"
         OnClick="Button_Click"
         runat="server" />

    </div>
    </form>
</body>
</html>

Remarques

Utilisez cette méthode pour supprimer tous les TableCell objets du TableCellCollection et définir la Count propriété sur 0.

Notes

Cette méthode supprime les TableCell objets du TableCellCollection, mais elle ne supprime pas le TableRow du Table contrôle . Veillez également à supprimer le TableRow si vous souhaitez supprimer complètement une ligne de la table.

S’applique à

Voir aussi