I wrote the following
<asp:UpdatePanel ID="Download" runat="server">
<ContentTemplate>
<asp:Label ID="lblMessage" runat="server"
Text="Click the link to download the Report:"></asp:Label>
<asp:LinkButton ID="lbtnDownload" runat="server"
OnClick="lbtnDownload_Click" Text="Download Excel Sheet"></asp:LinkButton>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="lbtnDownload"/>
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress ID="download1" runat="server" AssociatedUpdatePanelID="Download">
<ProgressTemplate>
<asp:Image ID="Image1" runat="server" ImageUrl"indicator.gif" " />
</ProgressTemplate>
</asp:UpdateProgress>
But the progress bar image is not showing can any one tell why
Remove the following: <asp:PostBackTrigger ControlID="lbtnDownload"/>
Ok, first thing to check is that you are definitely posting back successfully, also add a delay interval:
<asp:UpdateProgress DisplayAfter="0" ID="download1" runat="server"
AssociatedUpdatePanelID="Download">
Related
I've added a CalendarExtender to reset the dates of a datasource for a grid view.
Code -
<asp:UpdatePanel ID="UPTabs" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger controlid="tbMoveInDate" eventname="TextChanged" />
</Triggers>
<ContentTemplate>
<asp:TextBox ID="tbMoveInDate" Width="70px" AutoPostBack="true" runat="server"/>
<asp:CalendarExtender ID="tbMoveInDateCalendarExtender" runat="server" Format="MM/yyyy"
TargetControlID="tbMoveInDate" OnClientHidden="onCalendarHidden" OnClientShown="onCalendarShown" />
<asp:GridView ID="gvMoveins" runat="server" .../>
</ContentTemplate>
</asp:UpdatePanel>
with the intention of forcing the update panel to update when the date is changed.
What am I missing?
Need to use
<asp:PostBackTrigger />
to get the effect I needed.
I want to show an UpdateProgress on the Page, when the Button is clicked and while the Gridiew is loading. However, I want to show the loading image next to the Button and not instead of the Gridview.
When the button is clicked, it doesn't show the UpdateProgress. What is missing from my code?
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Button ID="OKButton" runat="server" Text="OK" Width="48px" onclick="OKButton_Click" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="OKButton" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress id="UpdateProgress1" runat="server" DisplayAfter="0" AssociatedUpdatePanelID="UpdatePanel">
<ProgressTemplate><img scr="../images/wait.gif" /></ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel runat="server" id="UpdatePanel2" updatemode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger controlid="OKButton" eventname="Click" />
</Triggers>
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server".....>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
Thanks for reply...I was trying to upload the image, however, I was unable to do so..
just to give an idea:
From Date _.................| Gridview
To Date __ ...................|
OK Button Image..........|
I know its not great. But I hope it gives an idea on how i'd like to place the button on the left side and GridView on the right side on the screen. The "Image" shows, where i'd like the image of UpdateProgress to be placed, while the GridvView is loading its content.
I have a ASP.NET gridview that shows some entries from the database. The entries need to be updated very frequently (if a modification occurs on the database, it should be reflected in the asp.net website within at most 3seconds).
The solution I am thinking about is to put the gridview inside an update panel and refresh the page every 3 seconds. Is there a better alternative?
By using Timer in the update panel u can perform that update operation.For example ..
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<div>
<asp:Timer ID="Timer1" OnTick="Timer1_Tick" runat="server" Interval="10000">
</asp:Timer>
</div>
<asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<ContentTemplate>
<asp:Label ID="Label1" runat="server" Text="UpdatePanel1 not refreshed yet."></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<ContentTemplate>
<asp:Label ID="Label2" runat="server" Text="UpdatePanel2 not refreshed yet."></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
</form>
instead of label control u can use gridview.
I have a ASP timer control which is supposed to run every three minutes. Although I kept the Timer control in an update panel, it is refreshing the whole page every time it runs.
Is there any it only refresh the particular section of the page, not the whole page?
<div>
<asp:UpdatePanel ID="UpdatePanel4" runat="server">
<ContentTemplate>
<asp:Timer ID="Timer1" runat="server" ontick="Timer1_Tick" Interval="300000" >
</asp:Timer>
</ContentTemplate>
</asp:UpdatePanel>
</div>
<asp:Timer runat="server" id="UpdateTimer" interval="200" ontick="function" />
<asp:UpdatePanel runat="server" id="TimedPanel" updatemode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger controlid="UpdateTimer" eventname="Tick" />
</Triggers>
<ContentTemplate>
<asp:Label runat="server" id="label1" />
<asp:TextBox ID="textbox1" runat="server"></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanel4" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<ContentTemplate>
<asp:Timer ID="Timer1" runat="server" ontick="Timer1_Tick" Interval="300000">
</asp:Timer>
</ContentTemplate>
</asp:UpdatePanel>
you need to use UpdatePanel Triggers. Conditional Update Panels with triggers, and msdn source. Updatepanel with Triggers
<asp:UpdatePanel ID="UpdatePanel4" runat="server">
<ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
</Triggers>
<asp:Timer ID="Timer1" runat="server" ontick="Timer1_Tick" Interval="300000"> </asp:Timer>
</ContentTemplate>
</asp:UpdatePanel>
Use update panel and add all the control's inside update panel which you don't want to be refreshed or postback by any event
Im trying tp upload more than one image, and when each one I upload I will show it in a repeater, but in the code behind the FileUpload1.HasFile is always False , this is a piece of my code :
<asp:UpdatePanel ID="UpdatePanel1" runat="server" ChildrenAsTriggers="true" UpdateMode="Conditional" >
<ContentTemplate>
<asp:Repeater ID="rpUploadedImages" runat="server">
<ItemTemplate>
<img src='../Images/<%# DataBinder.Eval(Container.DataItem, "ImagePath")%>'/><br />
</ItemTemplate>
</asp:Repeater>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnupload" EventName="click" />
</Triggers>
</asp:UpdatePanel>
<asp:FileUpload ID="FileUpload1" runat="server" /><br />
<asp:Button ID="btnupload" runat="server" Text="Upload" onclick="btnupload_Click" />
The FileUpload control does not work with UpdatePanel, you will need to do a full post back to get the file on the server... Now there are a lot of tricks to make it ajaxy...
http://geekswithblogs.net/ranganh/archive/2008/04/01/file-upload-in-updatepanel-asp.net-ajax.aspx
Another tricky way is to create iframe with fileupload + submit button(or some trigger) inside your main form. iframe will postback with no effect to main page.