阿賈克斯不能調用Web窗體在asp.net的WebMethod和C＃

Question

這裏是我的Ajax功能：

function createSalesInvoice() { 
    var SalesInvoice = {}; 
    SalesInvoice.PaidAmount = $("#textbox1").val(); 
    SalesInvoice.RemainingAmount = $("#textbox2").val();  
    $.ajax({ 
     type: "POST", 
     contentType: "application/json; charset=utf-8", 
     url: "/AjaxRequestToServer.aspx/createSalesInvoice", //URI 
     data: '{SalesInvoice: ' + JSON.stringify(SalesInvoice) + '}', 
     dataType: "json", 
     success: function (data) { 

      bootbox.alert("Item Added Successfully", function (e) { }); 

      GetSalesInvoiceItemsList(); 
      $("#hdfFlag").val("false"); 
     }, 
     error: function (xhr) { 
     } 
    }); 
} 

我不敢說我​​的[webmethod]。文本框中的所有值都返回正確。我想在表格中插入這些值。

[WebMethod] 
     public static int createSalesInvoice(SalesInvoiceEntity SalesInvoice) 
     { 
      int i = SalesInvoiceManager1.createSalesInvoice(SalesInvoice); 
      return i; 
     } 

Answer 1

需要檢查在數據

SalesInvoice.FinalAmount = $("#txtGrandTotal").val(); 
SalesInvoice.PaidAmount = $("#txtTotalPaid").val(); 
SalesInvoice.RemainingAmount = $("#txtTotalRemAmt").val(); 

傳遞如果上述參數是在整數作爲在的webmethod參數的參數 - （SalesInvoiceEntity SalesInvoice）然後應

SalesInvoice.FinalAmount = parseInt($("#txtGrandTotal").val()); 

被轉換爲INT並且值也不能爲空而是0.

希望它有效。

Answer 2

data: '{SalesInvoice: ' + JSON.stringify(SalesInvoice) + '}', 

這應該是

data: JSON.stringify({'SalesInvoice':SalesInvoice }), 

你的JavaScript函數應該像下面，只有一條線被改變。 而且，爲了便於區別，javscript對象名稱更改爲「SalesInvoiceJS」。

function createSalesInvoice() { 
    var SalesInvoiceJS = {}; 

    SalesInvoiceJS.FinalAmount = $("#txtGrandTotal").val(); 
    SalesInvoiceJS.PaidAmount = $("#txtTotalPaid").val(); 
    SalesInvoiceJS.RemainingAmount = $("#txtTotalRemAmt").val(); 
    // alert(SalesInvoiceJS.TotalInvoiceValue); ----------------This alert is working fine and return all above values correct. 
    $.ajax({ 
     type: "POST", 
     contentType: "application/json; charset=utf-8", 
     url: "/AjaxRequestToServer.aspx/createSalesInvoice", //URI 
     data: JSON.stringify({'SalesInvoice':SalesInvoiceJS }), 
     dataType: "json", 
     success: function (data) { 

      bootbox.alert("Item Added Successfully", function (e) { }); 

      GetSalesInvoiceItemsList(); 
      $("#hdfFlag").val("false"); 
     }, 
     error: function (xhr) { 
     } 
    }); 
} 

參考：From this place。