字符串的长度超过了 maxJsonLength 属性上设置的值。在MVC3中

MVC3（.cshtml 文件）

$.getJSON(URL, Data, function (data) {

                    document.getElementById('divDisplayMap').innerHTML = data;

                    if (data != null) {
                        $('#myTablesId').show();
                        tdOnclickEvent();

                    }
                    else {
                        $('#myTablesId').hide();
                    }
                }).error(function (xhr, ajaxOptions, thrownError) { debugger; });

在服务器端

 public JsonResult ZoneType_SelectedState(int x_Id, int y_Id)
    {
    JsonResult result = new JsonResult();
     result.Data = "LongString";//Longstring with the length mention below
    return Json(result.Data,"application/json", JsonRequestBehavior.AllowGet);
    }

从服务器端我传递长度为 1194812 及以上的字符串。 但我收到错误消息

"Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property."

请帮帮我 ASP

您可以编写一个自定义 ActionResult，它允许您指定序列化程序可以处理的最大数据长度：

public class MyJsonResult : ActionResult
{
    private readonly object data;
    public MyJsonResult(object data)
    {
        this.data = data;
    }

    public override void ExecuteResult(ControllerContext context)
    {
        var response = context.RequestContext.HttpContext.Response;
        response.ContentType = "application/json";
        var serializer = new JavaScriptSerializer();
        // You could set the MaxJsonLength to the desired size - 10MB in this example
        serializer.MaxJsonLength = 10 * 1024 * 1024;
        response.Write(serializer.Serialize(this.data));
    }
}

然后使用它：

public ActionResult ZoneType_SelectedState(int x_Id, int y_Id)
{
    string data = "LongString";//Longstring with the length mention below;
    return new MyJsonResult(data);
}