TableCellCollection.CopyTo(Array, Int32) Metoda

  • Odwołanie

Definicja

Przestrzeń nazw:
System.Web.UI.WebControls
Zestaw:
System.Web.dll

Kopiuje elementy z TableCellCollection elementu do określonego Array, począwszy od określonego indeksu w obiekcie Array.

public:
 virtual void CopyTo(Array ^ array, int index);
public void CopyTo (Array array, int index);
abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unit
Public Sub CopyTo (array As Array, index As Integer)

Parametry

array
Array

Oparty na Array zerze, który odbiera skopiowane elementy z obiektu TableCellCollection.

index
Int32

Pierwszy indeks w określonym Array celu odebrania elementów.

Implementuje

CopyTo(Array, Int32)

Przykłady

W poniższym przykładzie pokazano, jak za pomocą CopyTo metody skopiować elementy z TableCellCollection określonej tablicy.

<%@ 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;
        ArrayList a_row = new ArrayList();

        // 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();
                rw.Cells.Add(cel);
                counter++;
            }
            Table1.Rows.Add(rw);
        }

        if (!IsPostBack) 
        {
            // Create a DropDownList for the number of rows.
            for (int rowNum = 0; rowNum < numrows; rowNum++) 
            {
                a_row.Add(rowNum.ToString());
            }

            List1.DataSource = a_row; 
            List1.DataBind();
        }
    }

    void Button_Click(object sender, EventArgs e) 
    {
        int row = List1.SelectedIndex;
        TableCell[] myCellArray = new TableCell[6];
 
        // Copy the collection to an array.
        Table1.Rows[row].Cells.CopyTo(myCellArray, 0);      
 
        Label1.Text = "The copied items from the selected row are: ";

        // Iterate through the array and display its contents.
        foreach (TableCell cel in myCellArray) 
        {
            Label1.Text = Label1.Text + " " + cel.Text;
        }
    }
 
</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" 
        GridLines="Both" 
        HorizontalAlign="Center" 
        Font-Names="Verdana" 
        Font-Size="8pt" 
        CellPadding="15" 
        CellSpacing="0" 
        runat="server" />

        <p style="text-align:center">Select a row:
            <br />&nbsp;<br />
            Row: <asp:DropDownList id="List1" 
            runat="server" />
 
            <br /><br />
            <asp:Button id="Button1"
                Text="Copy Row to Array"
                OnClick="Button_Click"
                runat="server" />
            <br /><br />
            <asp:Label id="Label1"
                runat="server" />
       </p>
 
    </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(sender As Object, e As EventArgs)
        Dim numrows As Integer = 5
        Dim numcells As Integer = 6
        Dim counter As Integer = 1
        Dim a_row As New ArrayList()
            
        ' 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()
                rw.Cells.Add(cel)
                counter += 1
            Next
            Table1.Rows.Add(rw)
        Next

        If Not IsPostBack Then
            ' Create a DropDownList for the number of rows.
            For rowNum = 0 To numrows - 1
                a_row.Add(rowNum.ToString())
            Next

            List1.DataSource = a_row
            List1.DataBind()
        End If 
    End Sub

    Sub Button_Click(sender As Object, e As EventArgs)
        Dim row As Integer = List1.SelectedIndex
        Dim myCellArray(6) As TableCell

        ' Copy the collection to an array.
        Table1.Rows(row).Cells.CopyTo(myCellArray, 0)

        Label1.Text = "The copied items from the selected row are: "

        ' Iterate through the array and display its contents.
        Dim cel As TableCell
        For Each cel In  myCellArray
            Label1.Text = Label1.Text & " " & cel.Text
                
        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" 
        GridLines="Both" 
        HorizontalAlign="Center" 
        Font-Names="Verdana" 
        Font-Size="8pt" 
        CellPadding="15" 
        CellSpacing="0" 
        runat="server" />

        <p style="text-align:center">Select a row:
            <br />&nbsp;<br />
            Row: <asp:DropDownList id="List1" 
            runat="server" />
 
            <br /><br />
            <asp:Button id="Button1"
                Text="Copy Row to Array"
                OnClick="Button_Click"
                runat="server" />
            <br /><br />
            <asp:Label id="Label1"
                runat="server" />
       </p>
 
    </div>
    </form>
</body>
</html>

Uwagi

Użyj tej metody, aby skopiować zawartość obiektu TableCellCollection do określonego System.Array indeksu rozpoczynającego się od określonego indeksu.

Uwaga

Parametr array musi być oparty na zerowym parametrze System.Array.

Dotyczy

Zobacz też