AJAX :: Update Panel Doesn't Seem To Be Triggered?
Mar 14, 2011
I have a simple table with 5 text boxes, above that i have a dropdown where you make a selection, if there are any records of associated with the selection, then i display in the fields..
A while back this was working, you could make a selection and the fields were within a update panel and they were populated. But im revisiting the pages to make some updates and changes and noticing that the page no longer populates the fields when a selection is made..
Is there anyway to debug the updatepanel? I put a breakpoint in my selectedindexchanged event and my Db call is returning values and the textboxes .TEXT values are being assigned the right values in the code behind, but the fields never show up..
This page hasnt been touched since it was wworking last, so need to see how i can test / debug the update panel to determine what coudl be causing it..
[Code]....
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Feb 8, 2010
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Mar 27, 2011
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[Code]....
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[code]....
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[Code]....
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[Code]....
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Jun 5, 2010
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Feb 8, 2010
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<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:Timer ID="Timer1" runat="server" Interval="10000" OnTick="Timer1_Tick">
</asp:Timer>
<input type="hidden" runat="server" id="hidCurrentDate" value="" />
<input type="hidden" runat="server" id="hidTripIds" value="" />
<input type="hidden" runat="server" id="hidTripDetails" value="" />
<asp:UpdateProgress ID="uprogTrips" runat="server">
<ProgressTemplate>
<span style="display: block; text-align: center">
<p style="font-family: Verdana; font-size: larger; font-weight: bold;">
<img src="../../Images/ajax-loader.gif" alt="Processing..." /><br />
<br />
Processing...</p>
</span>
</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="upTripsGrid" runat="server" UpdateMode="Always">
<ContentTemplate>
<asp:GridView ID="gvAllTrips" runat="server" OnRowDataBound="gvAllTrips_RowDataBound"
OnPageIndexChanging="gvAllTrips_PageIndexChanging" AllowPaging="true" AutoGenerateColumns="false">
<PagerSettings Mode="NumericFirstLast" PageButtonCount="35" Position="TopAndBottom" />
<PagerStyle CssClass="GridPager" />
</asp:GridView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
<asp:AsyncPostBackTrigger ControlID="ddSortBy" EventName="SelectedIndexChanged" />
<asp:AsyncPostBackTrigger ControlID="ddFilterBy" EventName="SelectedIndexChanged" />
<asp:AsyncPostBackTrigger ControlID="cbPageOptions" EventName="CheckedChanged" />
</Triggers>
</asp:UpdatePanel>
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protected void Timer1_Tick(object sender, EventArgs e)
{
DataTable dtTrips = null;
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{
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{
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dtTrips = WSProxies.Build();
Session["AllTrips"] = dtTrips;
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{
if (cnt==0)
{
hidTripDetails.Value = ("Trip name-" + tripSummaryBO.tripName + " was modified by user " + tripSummaryBO.tripLastEditedBy);
}
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{
hidTripDetails.Value = hidTripDetails.Value + " <br/> " + ("Trip name-" + tripSummaryBO.tripName + " was modified by user " + tripSummaryBO.tripLastEditedBy);
}
BuildGridViewControl(dtTrips);
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}
}
else
{
//upTripsGrid.Triggers.Clear();
PageInit();
}
}
}
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aspx called on image click:
<asp:Panel ID="pnlModalContainer" runat="server">
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[code]...
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I've exempted the irrelevant bits of code. Essentially, I am trying to change the URL of an image control inside of an update panel inside of a custom user control from a function called inside an update panel from my main page. Using UpdatePanel.Update() isn't working: I end up waiting for the next full page POST to occur before all the updates I make to CustomControl from buttons within the main page's update panel are visible. I verified that Update() was being called via the debugger: there are no issues in that department.
Here, you can see Custom Control and the Button declared. The button is in an update panel to avoid giving a full POST and causing the whole page to reload.
<cust:CustomControl runat="server" ID="CustomControl1">
<asp:UpdatePanel runat="server" ID="UpdatePanel1"> <ContentTemplate>
<asp:Button id="Button1" runat="server" OnClick="DoStuff" />
</ContentTemplate> </asp:UpdatePanel>
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[Code]....
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May 17, 2010
i am attempting to use javascript to update the chart, because how i have setup now causes the chart to just disappear. Here is the code i have now: I am calling the chart to page using: on default.aspx
[Code]....
Code on the dataURL_Infrasturcture_Capacity.aspx page:
[Code]....
PROBLEM: So how would i update this using an update panel and timer. Currently when i do it the chart just disappears on update. I believethis is due to the fact that i am calling a dataURL. How would i get this to work javascript?
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i am confused about the fact that if partial update of dropdowns is possible through Update Panel ,then why we should use asp.net ajax Cascading drop down extender ,that has made same task bit complex by making callback to web services ? what is difference between using update panel and cascading drop down extender ?
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