Re: a Composite control with design-time support

Allen Chen – MSFT — Mon, 06 Jul 2009 08:20:31 GMT

Hi,

From your description you want to use an editor to edit a property of your custom composite control, right? If so you can either use the built-in Editor, like below, or write your own editor (if you want to do so please use reflector to view the source code of existing editor to see how to write it)

aspx:

        <cc1:MyControl ID="MyControl1" runat="server">
            <asp:ListItem>1</asp:ListItem>
            <asp:ListItem>2</asp:ListItem>
            <asp:ListItem>3</asp:ListItem>
        </cc1:MyControl>

aspx.cs:

[ParseChildren(true, "Items")]
    public class MyControl : CompositeControl
    {
        public MyControl() {
            this.PreRender += new EventHandler(MyControl_PreRender);
        }

        void MyControl_PreRender(object sender, EventArgs e)
        {
            foreach (ListItem li in this.items)
            {
                TextBox tb = new TextBox() { Text = li.Text };
                this.Controls.Add(tb);
            }

}

private ListItemCollection items;

        [DefaultValue((string)null),
        PersistenceMode(PersistenceMode.InnerDefaultProperty),
        Editor("System.Web.UI.Design.WebControls.ListItemsCollectionEditor,System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a",
            typeof(UITypeEditor)), MergableProperty(false)]
        public virtual ListItemCollection Items
        {
            get
            {
                if (this.items == null)
                {
                    this.items = new ListItemCollection();

                }
                return this.items;
            }
        }

}

a Composite control with design-time support

BaloonTiger — Thu, 02 Jul 2009 12:47:32 GMT

Do you know any good examples of a collection Editor in a composite control ?

Custom Server Controls

Re: a Composite control with design-time support

a Composite control with design-time support