C# 将用户控件添加到asp.net页面

我使用如下事件创建一个用户控件：

public partial class Person : System.Web.UI.UserControl
{
    public delegate void EditPersonHandler(object sender, EditPersonEventArgs e);
    public event EditPersonHandler EditPerson;
    protected void Page_Load(object sender, EventArgs e)
    {

    }
}

这是我的编辑文塔格：

 public  class EditPersonEventArgs:EventArgs
{
    private int id;

    public int ID
    {
        get { return id; }
        set { id = value; }
    }
    public EditPersonEventArgs(int ID)
    {
        id = ID;
    }

}

现在，我想将此用户控件添加到我的页面，并执行以下操作：

<%@ Register TagPrefix="UControl" TagName="UControlPerson" Src="~/SimpleUC/Person.ascx" %>

<div>
    <UControl:UControlPerson ID="UControlPerson" runat="server"
                             OnEditPerson="UControlPerson_EditPerson" />
</div>

我构建了解决方案。 但是，当我呈现页面时，会出现以下错误：

Description: An error occurred during the compilation of a resource required to service this
request. Please review the following specific error details and modify your source code 
appropriately. 


Compiler Error Message: CS0426: The type name 'SimpleUC' does not exist in the type 
'System.Web.UI.UserControl'

这是我的名字空间：

---

namespace UserControl.SimpleUC

如果出现名称空间冲突，则用户控件名称空间

UserControl的
UserControl.SimpleUC
部分将解析为名称空间
System.Web.UI.UserControl

解决此问题的最简单方法是为控件选择另一个命名空间。可能类似于
UserControls.SimpleUC

Description: An error occurred during the compilation of a resource required to service this
request. Please review the following specific error details and modify your source code 
appropriately. 


Compiler Error Message: CS0426: The type name 'SimpleUC' does not exist in the type 
'System.Web.UI.UserControl'