UserControl's RenderControl is asking for a form tag in (C# .NET)
.net, c#, html, user-controls
Solution
Alternatively you could disable the ServerForm/Event-validation on the page that is rendering the control to a string.
The following example illustrates how to do this.
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string rawHtml = RenderUserControlToString();
}
private string RenderUserControlToString()
{
UserControl myControl = (UserControl)LoadControl("WebUserControl1.ascx");
using (TextWriter myTextWriter = new StringWriter())
using (HtmlTextWriter myWriter = new HtmlTextWriter(myTextWriter))
{
myControl.RenderControl(myWriter);
return myTextWriter.ToString();
}
}
public override void VerifyRenderingInServerForm(Control control)
{ /* Do nothing */ }
public override bool EnableEventValidation
{
get { return false; }
set { /* Do nothing */}
}
}
Problem
I asked how to render a UserControl's HTML and got the code working for a dynamically generated UserControl. Now I'm trying to use LoadControl to load a previously generated Control and spit out its HTML, but it's giving me this: Control of type 'TextBox' must be placed inside a form tag with runat=server. I'm not actually adding the control to the page, I'm simply trying to grab its HTML. Any ideas? Here's some code I'm playing with: ``` TextWriter myTextWriter = new StringWriter(); HtmlTextWriter myWriter = new HtmlTextWriter(myTextWriter); UserControl myControl = (UserControl)LoadControl("newUserControl.ascx"); myControl.RenderControl(myWriter); return myTextWriter.ToString(); ```