通過AJAX訪問URL時出現404錯誤

Question

不知道爲什麼，一切看起來格式正常，但在嘗試訪問我的控制器中的函數時出現HTTP 404錯誤。這裏的ASPX：

function CheckIfPacked() { 
    if ($("#OrderNumber").val() != "") { 
    var url = "/Packing/PackageTracking/CheckIfPacked"; 
    $.ajax({ 
     url: url, 
     cache: false, 
     data: "orderNumber=" + $("#OrderNumber").val() + "&actionyes=GetSalesOrder()", 
     success: function (data) { 
     var domElement = $(data); 
     if (data != "") { 
     $('#MessageDiv').append(domElement); 
     } 
    }); 
    } 
} 

而這裏的控制器：

public Result CheckIfPacked(string orderNumber) { 
    var mesEntity = new MESEntities(); 
    var packh = from packhead in mesEntity.Packing_Transaction_Headers 
       where packhead.Order_No_ == orderNumber 
       select packhead.Completed_by_Packer; 
    if (packh.First() == 0) 
    { 
     return new Result { Success = true, Message = string.Format("You have not finished packing order {0}, are you sure you want to navigate away from this page?", orderNumber) }; 
    } 
    else 
    { 
     return null; 
    } 
} 

我想我只是盯着這太長了。謝謝。

Answer 1

你的方法應該是靜態的，你應該使用WebMethod屬性爲你的函數：

[WebMethod] 
public static Result CheckIfPacked(string orderNumber) { 
    var mesEntity = new MESEntities(); 
    var packh = from packhead in mesEntity.Packing_Transaction_Headers 
       where packhead.Order_No_ == orderNumber 
       select packhead.Completed_by_Packer; 
    if (packh.First() == 0) 
    { 
     return new Result { Success = true, Message = string.Format("You have not finished packing order {0}, are you sure you want to navigate away from this page?", orderNumber) }; 
    } 
    else 
    { 
     return null; 
    } 
}