从自定义控件的代码隐藏中检索aspx的html内容

Question

I have 2 files, Test.aspx and MyControl.ascx.

In Test.aspx's html:

<MyControl>
  <MyTemplate>
     <div>sample text, other controls</div>
 </MyTemplate>
</MyControl>

In MyControl.ascx.cs:

[ParseChildren(ChildrenAsProperties=true)]
[PersistChildren(true)]
public class MyControl:Control
{
    [Browsable(true)]
    public ITemplate MyTemplate{ get; set; }
    protected override void OnLoad(EventArgs e)
    {
        //get the template html, but how to get???
        var templateHtml = this.MyTemplate.ToString();
    }
}

I want to get the content of the <MyTemplate> tag ( <div>sample text, other controls</div> ) from codebehind within MyControl.ascx.cs.

Who can help me? Thanks.

Answer 1

You would need to make the div a server side control as so:

<MyControl>
  <MyTemplate>
     <div runat="server" id="divContent">sample text, other controls</div>
 </MyTemplate>

Now, in your code behind, depending on what kind of control is this and how is that div rendered, you should be able to do something like this:

var innerHtml = yourControl.FindControl("divContent").InnerHtml;

Again, this depends on how is the div rendered. If it's inside a row (assuming your control is a list of some kind), then you would need to get a reference to the row and then call FindControl("divContent") on the row.