UpdatePanel中导致双重请求的原因是什么?

时间:2016-03-16 07:16:35

标签: javascript asp.net request updatepanel abort

在所有页面按钮的母版页中:

findButton.Attributes.Add( "onclick", @" $(""#" + findButton.ClientID + @""").val(""Processing..."").attr(""disabled"",""disabled"");" + Page.ClientScript.GetPostBackEventReference( findButton, null ) + ";" );

该页面包含:

<script type="text/javascript">
    function BindEvents() {
        $(document).ready(function () {
           ... prepare jquery ui combo boxes ...
         });
     }
</script>

    <asp:UpdatePanel runat="server" ID="UpdatePanel">
        <Triggers>
            <asp:PostBackTrigger ControlID="btnPrint" />
        </Triggers>

        <ContentTemplate>
            <script type="text/javascript">Sys.Application.add_load(BindEvents);</script>

            <asp:Panel ID="pnlMainButtons" runat="server" Visible="true">
                <table>
                    <tr>
                        <td>
                            <asp:Button ID="btnFind" runat="server" Text="Find" OnClick="btnFind_OnClick" />
                        </td>

                        <td>
                            <asp:Button ID="btnPrint" runat="server" Text="Print" OnClick="btnPrint_OnClick" />
                        </td>
                    </tr>
                </table>
            </asp:Panel>

            ... other user controls ...
        </ContentTemplate>
    </asp:UpdatePanel>

并且没有设置AutoPostBack。查找按钮呈现为:

<input id="ctl00_ctl00_MainPlaceHolder_PlaceHolder_btnFind" type="submit" onclick=" $("#ctl00_ctl00_MainPlaceHolder_PlaceHolder_btnFind").val("Processing...").attr("disabled","disabled");__doPostBack('ctl00$ctl00$MainPlaceHolder$PlaceHolder$btnFind','');" value="Find" name="ctl00$ctl00$MainPlaceHolder$PlaceHolder$btnFind">

Firefox中的Firebug通过单击“查找”按钮显示双重请求发送 - 第二个请求成功,但是什么原因导致第一个请求被发送?

0 个答案:

没有答案