动态添加用户控件

<%@ Register Src="~/SysManage/RoleManage/RoleUserControl.ascx" TagName="RoleUserControl" TagPrefix="ruc1"  %>

SysManage_RoleManage_RoleUserControl roleUserControl = LoadControl(@"RoleUserControl.ascx") as SysManage_RoleManage_RoleUserControl;

<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
PlaceHolder1.Controls.Add(roleUserControl);