Updateprogress not working with PostBackTrigger-ASP.NET
hi I'm having a problem with "Updateprogress" in ASP.NET . If i set the PostBackTrigger the progress loading image is not displayed but if i exclude the PostBackTrigger it's working. The code is as follows :
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp:PostBackTrigger ControlID="Submit" />
</Triggers>
<ContentTemplate>
<asp:FileUpload runat="server" ID="Up"></asp:FileUpload>
<asp:Button runat="server" Text="Upload" ID="Submit" OnClick="Submit_Click" CausesValidation="false" />
<asp:UpdateProgress ID="upd" runat="server">
<ProgressTemplate>
<img alt="Checking Status" sr开发者_开发技巧c="ajax-loader(2).gif" />
<%--<asp:Image runat="server" ImageUrl="~/ajax-loader(2).gif" ID="img" />--%>
</ProgressTemplate>
</asp:UpdateProgress>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
加载中,请稍侯......
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