使用RegisterStartupScript的ASP.net警报框，产生javascript代码但出现错误

Question

我的课堂上有以下C＃代码：

private static void error_message(Sybase.Data.AseClient.AseException salah)
    {
        Page executingPage = HttpContext.Current.Handler as Page;
        Type cstype = HttpContext.Current.GetType();

        // Get a ClientScriptManager reference from the Page class.
        ClientScriptManager cs = executingPage.ClientScript;

        // Check to see if the startup script is already registered.
        if (!cs.IsStartupScriptRegistered(cstype, "PopupScript"))
        {
            String cstext = "alert('" + salah.Message + "');";
            cs.RegisterStartupScript(cstype, "PopupScript", cstext, true);
        }
    }

产生此代码

 <script type="text/javascript">
 //<![CDATA[
alert('ua_services not found. Specify owner.objectname or use sp_help to check whether the object exists (sp_help may produce lots of output).
');//]]>
</script>

但是没有显示警告框，Chrome浏览器记录错误“ Uncaught SyntaxError：Unexpected token ILLEGAL”

我的代码有什么问题？

Answer 1

您的salah.Message包含CRLF。 修剪或逃脱它。

或将RegisterStartupScript包装在执行此操作的方法中。