asp.net dynamically loads user-defined controls and translates them into HTML code _ practical Tips

If the page simply use JS to create, to write a large number of code, and not intuitive.
In asp.net, we can actually create user-defined controls that return user-defined HTML code through AJAX requests.

Copy Code code as follows:

public static string Rangeruscontrol (String controlname)
{
StringBuilder build = new StringBuilder ();
HtmlTextWriter htmlwriter = new HtmlTextWriter (new StringWriter (build));
UserControl UC = new UserControl ();
Control Ctrl=uc. LoadControl (controlname+ ". ascx");/load user-defined control TextBox TxtBox1 = Ctrl. FindControl ("TextBox1") as textbox;//get control with id "TextBox1"
Txtbox1.text = "Test"; Initializes string result to the control;
Try
{
Ctrl. RenderControl (HTMLWriter);
}
Catch {}
Finally
{
Htmlwriter.flush ();
Result=build. ToString ();
}
Return result;//The HTML code of the control
}
Htmlwriter.flush ();