如何从Ajax命令中获取WebMethod [英] How do I get a WebMethod to be enacted from an Ajax Command

问题描述

如何从Ajax命令中获取WebMethod？



当我点击Button1时，我收到警告上的错误代码说：

How do I get a WebMethod to be enacted from an Ajax Command?

When I click Button1 I get the Error Code on the Alert saying:

"Error Code: [object Object]"

代码：

Code:

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script type="text/javascript">
        function GetDateTime() {
            $.ajax
            ({
                type: "POST",
                url: "Default.aspx/GetServerDateTime",
                data: {'one':'1'},
                contentType: "application/json;charset=utf-8",
                dataType: "json",
                success: function (result) {
                    alert(result.d);
                },
                error: function (err) {
                    alert("Error Code: " + err);
                }
            });
        }
    </script>

protected void Button1_Click(object sender, EventArgs e)
{
    ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "scr", "Javascript:GetDateTime();", true);
}
[WebMethod]
public static string GetServerDateTime()
{
    string date = DateTime.Now.ToString();
    return date;
}

推荐答案

.ajax
（{
type： POST，
url： Default.aspx / GetServerDateTime，
data：{' one'：' 1'}，
contentType：< span class =code-string> application / json; charset = utf-8，
dataType： json，
成功： function （结果）{
alert（result.d）;
}，
错误： function （错误）{
alert（ 错误代码： + err）;
}
}）;
}
< / 脚本 >

.ajax ({ type: "POST", url: "Default.aspx/GetServerDateTime", data: {'one':'1'}, contentType: "application/json;charset=utf-8", dataType: "json", success: function (result) { alert(result.d); }, error: function (err) { alert("Error Code: " + err); } }); } </script>

protected void Button1_Click(object sender, EventArgs e)
{
    ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "scr", "Javascript:GetDateTime();", true);
}
[WebMethod]
public static string GetServerDateTime()
{
    string date = DateTime.Now.ToString();
    return date;
}

您好，



尝试更改错误处理部分如下，你可以看到实际的错误信息;

Hi,

Try changing your error handling section as below and you can see the actual error message;

error: function (xhr, status, ex) {
                   alert("error: " + status + ex);

               }

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