[英]calling a c# function from javascript dosent work
我用c#在asp.net中構建了一個WebApplication,我有一個問題就是從JS調用ac#函數。
我的代碼是這樣的:
在js中:
Function doStuff()
{
var service = new seatService.Service1();
service.DoWork(id, onSuccess, null, null);
}
並在服務頁面中:
[ServiceContract(Namespace = "seatService")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class Service1
{
[OperationContract]
public static void DoWork(string id)
{
//here there is a function that calls the DB
}
}
奇怪的是它實際工作20次之一(使用相同的代碼),但大部分時間它失敗了,我收到了消息:
未捕獲的referenceEror - 未定義seatService。
狀態代碼為500 Internal Server Error.
因為它有時工作,有時不工作 - 我的問題在哪里?
您想要使用PageMethods
。 以下是一些示例代碼:
public partial class ContactUs : System.Web.UI.Page
{
[WebMethod]
public static void SendForm(string name, string email, string message)
{
if (string.IsNullOrEmpty(name))
throw new Exception("You must supply a name.");
if (string.IsNullOrEmpty(email))
throw new Exception("You must supply an email address.");
if (string.IsNullOrEmpty(message))
throw new Exception("Please provide a message to send.");
//call your web service here, or do whatever you wanted to do
}
}
來自JavaScript:
SendForm = function() {
var name = $get("NameTextBox").value;
var email = $get("EmailTextBox").value;
var message = $get("MessageTextBox").value;
PageMethods.SendForm(name, email, message, OnSucceeded, OnFailed);
}
OnSucceeded = function() {
$get("ContactFieldset").innerHTML = "<p>Thank you!</p>";
}
OnFailed = function(error) {
alert(error.get_message());
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.