[已解决]来自服务器端的Javascript警报 [英] [Solved] Javascript alert from server side

问题描述

存储数据时，我必须显示一个消息框.
我已使用此代码...

当我在演示网站上对其进行测试时，它运行良好.但是，当我将其应用到Web应用程序中时，它没有显示任何错误，但消息框没有弹出.

Hi,

I have to show a message-box when the data gets stored.
I have used this code...

It worked fine when i tested it with demo website...But when i applied it in my web-application, it showed me no error but also the message-box didn''t popup.

protected void btnok_Click(object sender, EventArgs e)
      {
          try
          {
              string _status = "Pending";
              //bool _result = _objVreg.insertdata(_strTablename, txtname.Text.ToString(), txtmobileno.Text.ToString(), txtcompany.Text.ToString(), txtpurpose.Text.ToString(), ddldepartment.SelectedItem.ToString(), ddlcontacperson.SelectedItem.ToString(), txtcity.Text.ToString(), System.DateTime.Now, Session["UserName"].ToString(), "", _status);
              bool _result = _objVreg.insertdata(_strTablename, txtname.Text.ToString(), txtmobileno.Text.ToString(), txtcompany.Text.ToString(), txtpurpose.Text.ToString(), ddlbranch.SelectedValue.ToString(), ddldepartment.SelectedValue.ToString(), ddlcontacperson.SelectedValue.ToString(), txtcity.Text.ToString(), System.DateTime.Now, "", "", _status, txtluggage.Text.Trim());
              if (_result == true)
              {
                  Alert.Show("Record Added Successfully");

              }
              else
              {
                  lblMsg.Text = "Record Not Added, Please Try Again";
              }
          }
          catch (Exception ex)
          {
              Response.Write(ex.Message);
          }
      }

我添加了一个名为"Alert.cs"的类，该类显示以字符串形式传递的所有弹出窗口.
班级是

I have added a class named "Alert.cs" which shows any popup passed as string.
The class is

public static class Alert
   {

       /// <summary>
       /// Shows a client-side JavaScript alert in the browser.
       /// </summary>
       /// <param name="message">The message to appear in the alert.</param>
       public static void Show(string message)
       {
           // Cleans the message to allow single quotation marks
           string cleanMessage = message.Replace("'", "\\'");
           string script = "<script type=\"text/javascript\">alert('" + cleanMessage + "');</script>";

           // Gets the executing web page
           Page page = HttpContext.Current.CurrentHandler as Page;

           // Checks if the handler is a Page and that the script isn't already on the Page
           if (page != null && !page.ClientScript.IsClientScriptBlockRegistered("alert"))
           {
               page.ClientScript.RegisterClientScriptBlock(typeof(Alert), "alert", script);
           }
       }

   }

请指导我...

更新:
OP自己解决了该问题，并将其发布为答案之一.

Please guide me...

UPDATE:
OP resolved it by himself and posted it as one of the answer.

推荐答案

http://stackoverflow.com/questions/3831366/display-a-yes-no-alert-box-in-c-code-behind [ ^ ]

http://madskristensen.net/post/JavaScript-AlertShow%28e2809dmessagee2809d% 29-from-ASPNET-code-behind.aspx [ ^ ]

http://stackoverflow.com/questions/3831366/display-a-yes-no-alert-box-in-c-code-behind[^]

http://madskristensen.net/post/JavaScript-AlertShow%28e2809dmessagee2809d%29-from-ASPNET-code-behind.aspx[^]

已解决...我想我遇到了问题，因为页面正在回发..
我只是在保存后重定向页面，然后将querystring值传递给它..并在加载querystring值时对其进行了检查...

然后将弹出式窗口加载到重定向页面上.在这里工作正常...

Its solved...i guess i was getting the problem because the page was getting post back ..
I simply redirected the page after save and passed a querystring value to it..and checked it at load the querystring value...

and put the popup at load of the redirected page..it worked fine there...

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