Asp.net用JQuery找出哪一个元素引起PostBack

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在Asp.net webform中，如何找出哪一个按钮触发Button PostBack事件。先看ASPX：

   1:  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

   2:  <html xmlns="http://www.w3.org/1999/xhtml">

   3:  <head runat="server">

   4:      <title>Petter Liu demo</title>

5:

   6:      <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.min.js" type="text/javascript"></script>

7:

   8:      <script type="text/javascript">

   9:          $(function() {

  10:              $("input:submit").click(function() {

  11:                  $("#HiddenField1").val($(this).attr("id")

  12:                          + " 引起一个 postback");

  13:              });

  14:          });

  15:          </script>

16:

  17:  </head>

  18:  <body>

  19:      <form id="form1" runat="server">

  20:      <div>

  21:          <asp:Button ID="Button1" runat="server" Text="Button1" />

  22:          <asp:Button ID="Button2" runat="server" Text="Button2" />

  23:          <asp:Button ID="Button3" runat="server" Text="Button3" />

  24:          <asp:HiddenField ID="HiddenField1" runat="server" />

  25:      </div>

  26:      </form>

  27:  </body>

  28:  </html>

然后在Sever端这么写：

   1:    /// <summary>

   2:          /// Handles the Load event of the Page control.

   3:          /// </summary>

   4:          /// <param name="sender">The source of the event.</param>

   5:          /// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>

   6:          /// <remarks>Author Petter Liu http://wintersun.cnblogs.com  </remarks>

   7:          protected void Page_Load(object sender, EventArgs e)

   8:          {

   9:              Response.Write(HiddenField1.Value);

  10:          }

很简单的CODE.

希望这篇POST对您有帮助。

Petter Liu Blog。

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asp.netIE11dopostbackisnullorundefined为空或未定义发布时间：2022-07-10