问题
I have two updatepanel and a progressbar on the page. If I set the AssociatedUpdatePanelID, then progressbar is not working, without setting AssociatedUpdatePanelID progress bar is working but the problem is working for both updatepanel. But I need to work on one updatepanel.
<asp:Button ID="Button1" runat="server" Text="Button1" OnClick="Button1_Click" />
<asp:Button ID="Button2" runat="server" Text="Button2" OnClick="Button2_Click" />
<asp:UpdateProgress runat="server" ID="prg" AssociatedUpdatePanelID="upnl">
<ProgressTemplate>
<img src="Images/progressbar.gif" />
</ProgressTemplate>
</asp:UpdateProgress>
<br />
<asp:UpdatePanel runat="server" ID="upnl" UpdateMode="Conditional">
<ContentTemplate>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
<asp:UpdatePanel runat="server" ID="upnl1" UpdateMode="Conditional">
<ContentTemplate>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button2" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
Code Behind - C#
protected void Button1_Click(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(3000);
}
protected void Button2_Click(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(3000);
}
In this video, he also not set AssociatedUpdatePanelID http://www.asp.net/learn/ajax-videos/video-123.aspx
回答1:
Excellant Article: Explaining every thing in very simple manner..........
http://www.codedigest.com/Articles/ASPNETAJAX/125_Using_UpdateProgress_Control_Effectively.aspx
By Design External triggers for an UpdatePanel do not fire an associated UpdateProgress, since the implementation of enabling the UpdateProgress control searches the control hierarchy for the calling control; an external trigger will not be present in the control hierarchy.
回答2:
AssociatedUpdatePanelID property in the UpdateProgress control will not work if the event that triggered the UpdatePanel is also external.
来源:https://stackoverflow.com/questions/1187953/updateprogessbar-is-not-working-when-setting-associatedupdatepanelid