asp.net中执行到Response.write("xx");这段语句时出现下面的情况，请问如何改正？

在放置了UpdatePanel时，即便是设置了PostBackTrigger 也无法Response.Write();正常情况下，微软推荐我们是这么用的：
                string scripts = "<script>alert('弹出提示框！');</script>";
                ClientScriptManager csm = Page.ClientScript;
                csm.RegisterClientScriptBlock(this.GetType(), "sss", scripts, false);
                //csm.RegisterStartupScript(this.GetType(),"sss",scripts,false);

如果还不行你就用专门针对UpdatePanel控件的：
ScriptManager.RegisterStartupScript(this.UpdatePanel1, this.GetType(), "updateScript", "alert('房间号不存在！');", true); 
你只需将alert('房间号不存在！');改成你输出的脚本即可！

Hi, When you use update panel then you can not call javascript like this .. Try Following Code, string CloseWindow; CloseWindow = "alert('Hello World')"; ScriptManager.RegisterStartupScript(UpdatePanelID,UpdatePanelID.GetType(), "CloseWindow", CloseWindow, true);