Webpart references usercontrol

Webpart references usercontrol in two ways:

1. Reference quickpart

2. Develop a webpart to expose a reference address attribute. The Code is as follows:

View code

using System;
using System.Runtime.InteropServices;
using System.Web.UI;
using System.Web.UI.WebControls.WebParts;



namespace WebPartCollection
{
    [Guid("1c7e7f5f-c4d6-4628-8785-3804bc0f5c85")]
public class UserControlWebPart : System.Web.UI.WebControls.WebParts.WebPart
    {
public UserControlWebPart()
        {

        }

private string _ControlPath;
        [Personalizable]
        [WebBrowsable]
        [WebDisplayName("Control File Path")]
public string ControlPath
        {
get { return _ControlPath; }
set { _ControlPath = value; }
        }
protected override void CreateChildControls()
        {

base.CreateChildControls();

        }
protected override void OnInit(EventArgs e)
        {
base.OnInit(e);
if (string.IsNullOrEmpty(_ControlPath))
return ;
try
            {
                Control calendar = Page.LoadControl(_ControlPath);
if (calendar!=null)
                {
this.Controls.Add(calendar);
                }
            }
catch (Exception ex)
            {
this.Controls.Add(new LiteralControl(ex.Message));
            }
        }
    }
}

The controlpath address format is as follows :~ /_ Controltemplates/calendar. ascx. From the above address format, we can see that the calendar. ascx file is placed in the 12 \ template \ controltemplates folder.