Custom Control

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I am creating a custom control, following is the code of class file:-

using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Text;
using System;

namespace WebControls
{
    [ParseChildren(true)]
    [PersistChildren(true )]
    public class ECBDiv : WebControl
    {
        public ECBDiv()
        {
        }

        private ITemplate div = null;

        DivContainer containerDiv = new DivContainer();

        [TemplateContainer(typeof(DivContainer))]
        [PersistenceMode(PersistenceMode.InnerProperty)]
        [TemplateInstance(TemplateInstance.Single)]
        public ITemplate Div
        {
            get
            {
                return div;
            }
            set
            {
                div = value;
                div.InstantiateIn(containerDiv);


            }
        }
        public class DivContainer : Control, INamingContainer
        {
            internal DivContainer()
            {
            }
        }
        protected override void Render(HtmlTextWriter writer)
        {
            writer.Indent++;
            writer.WriteBeginTag("div");
            writer.WriteAttribute("id", "Box");
            writer.WriteAttribute("class", "right");
            writer.WriteAttribute("runat", "server");
            writer.Write((HtmlTextWriter.TagRightChar));
            containerDiv.RenderControl(writer);
            writer.WriteLine("");
            writer.WriteEndTag("div");
        }
    }

}

///////////End of code- ECBDiv/////////////

Now I am using this control on my aspx page. I am putting a textbox and a command button inside the DIV Template on the aspx page. But i am not getting the button click event on the code behind. I am getting textbox and it s properties but the button click event is not getting fired. I have also tried button.Click+= new EventHandler(BtnClicked); But this also is not working.

Anyone can guide me??

Posted 2-Jun-10 23:35pm

Mani1981

Updated 2-Jun-10 23:46pm

PSK_

v2

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**PSK_** · Accepted Answer · 2010-06-03T01:31:00

Change your existing code for the Div property as following.

public ITemplate Div
       {
           get
           {
               return div;
           }
           set
           {
              div = value;
              Controls.Clear();
              div.InstantiateIn(containerDiv);
              base.Controls.Add(containerDiv);

           }
       }

You have missed adding the container to the base class.

base.Controls.Add(containerDiv);

And your HTML within the Div will look like.

<cc1:ECBDiv ID="ECBDiv1" runat="server">
            <Div>
                <asp:button id="BtnTest" text="Test" runat="server" onclick="BtnTestClick" xmlns:asp="#unknown" />
            </Div>
        </cc1:ECBDiv>

And finally your event

protected void BtnTestClick(object sender, EventArgs e)
        {

            Response.Write("Test");
        }