重载警告窗口,使控件获得焦点

[c#]代码库

/**//// <summary>
/// 服务器端弹出alert对话框，并使控件获得焦点
/// </summary>
/// <param name="str_Ctl_Name">获得焦点控件Id值,比如：txt_Name</param>
/// <param name="str_Message">提示信息,例子："请输入您姓名!"</param>
/// <param name="page">Page类</param>
public void Alert ( string str_Ctl_Name,string str_Message,Page page )
{
	page.RegisterStartupScript ( "","<script>alert('"+str_Message+"');document.forms(0)."+str_Ctl_Name+".focus(); document.forms(0)."+str_Ctl_Name +".select();</script>" );
}