javascript 在asp.net中通过javascript警报显示异常消息
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/6450235/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Display exception message through javascript alert in asp.net
提问by rdp
I am trying to show exception message through javascript alert box.
我正在尝试通过 javascript 警报框显示异常消息。
Here is the sample code.
这是示例代码。
public static void HandleException(Page page, Exception ex)
{
string message = ex.Message.ToString();
ScriptManager.RegisterClientScriptBlock(page, page.GetType(), "", "alert('"+message+"');", true);
}
It runs if i give literal values for the string variable. e.g.
如果我为字符串变量提供文字值，它就会运行。例如
string message = "Hello World";
But it fails if I give message = ex.Message;
但是如果我给 message = ex.Message; 就会失败。
Any Idea?
任何的想法？
回答by Darin Dimitrov
You need to encode it, for example using JavaScriptSerializerbecause if the message contains some escape characters like 'or "this will definitely break your javascript:
您需要对其进行编码，例如使用JavaScriptSerializer因为如果消息包含一些转义字符，例如'或者"这肯定会破坏您的javascript：
var message = new JavaScriptSerializer().Serialize(ex.Message.ToString());
var script = string.Format("alert({0});", message);
ScriptManager.RegisterClientScriptBlock(page, page.GetType(), "", script, true);
回答by Bibhu
try
{
//do some thing
}
catch (Exception ex)
{
Response.Write("<script language='javascript'>alert('" +
Server.HtmlEncode(ex.Message) + "')</script>");
}
回答by Paul McLean
Does your ex.Messagehave any ' characters in it? They may need escaping.
你ex.Message有任何 ' 字符吗？他们可能需要逃跑。
