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Table.CreateControlCollection Method

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Creates a new ControlCollection object to hold the TableRow controls of the current Table control.

protected override System.Web.UI.ControlCollection CreateControlCollection();

Returns

ControlCollection

A ControlCollection object to contain the TableRow controls of the current Table control.

Examples

The following code example demonstrates how to override the CreateControlCollection method in a custom server control so that it always returns a new instance of the EmptyControlCollection class for the Table.

<%@ Register TagPrefix="aspSample" 
    Namespace="Samples.AspNet.CS.Controls" %>
<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head2" runat="server">
    <title>Custom Table - CreateControlCollection - C# Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <h3>Custom Table - CreateControlCollection - C# Example</h3>

    <aspSample:CustomTableCreateControlCollection runat="server"
      id="Table1" GridLines="Both" CellPadding="4">
      <asp:TableRow>
        <asp:TableCell>Row 0, Col 0</asp:TableCell>
        <asp:TableCell>Row 0, Col 1</asp:TableCell>
      </asp:TableRow>
      <asp:TableRow>
        <asp:TableCell>Row 1, Col 0</asp:TableCell>
        <asp:TableCell>Row 1, Col 1</asp:TableCell>
      </asp:TableRow>
    </aspSample:CustomTableCreateControlCollection>

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

using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
    [AspNetHostingPermission(SecurityAction.Demand, 
        Level = AspNetHostingPermissionLevel.Minimal)]
    public sealed class CustomTableCreateControlCollection : Table
    {
        protected override ControlCollection CreateControlCollection()
        {
            // Return a new ControlCollection
            return new ControlCollection(this);
        }
    }
}

Remarks

This method is used primarily by control developers when deriving a custom class from a Table control.

This method overrides the CreateControlCollection implementation for the base Control class. For a Table control, the CreateControlCollection always returns a ControlCollection that can only contain TableRow controls of the current Table control.

Applies to

Product Versions
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1

See also