AJAX :: UpdatePanel Won't Append Data From Web Service To A Label Control
Apr 1, 2010
I have an UpdatePanel with a button and a label. Inside the button click event I call a web service which returns a string. I then want to append that to the label. Simple! Except that it doesn't work. I can change the label to a value I set inside the click event but when I try to add the web service string it doesn't work.
I have been trying to override the PreRender event, to use a ViewState, to set EnableViewState on the Label to be false. Nothing. Works. At All. If I set a break point inside the OnPreRender override I can see that lbl1.Text is being set to the value that I want (i.e. the value from the web service) but it doesn't appear on the browser.
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Dec 15, 2010
i got a problem with the update panel it doesn't work
here's the code:
[Code]....
here's the codebehind:
[Code]....
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Aug 18, 2010
I have 2 UpdatePanel. And there are asp.net datalist controls inside them. And there are Labels inside datalists.
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Sep 2, 2010
I either don't understand or I'm not using AJAX right. I'm running a long report. I'd like to have a label to show the user that the "Report Running", then, that the report has finished. But, when the user runs another report, I'd like to have the label that shows "Report Finished!" to clear so that you don't have "Report Running!" and "Report Finished!" on the screen at the same time. But, the label will not clear???? I get both lables showing. What am I doing wrong?
Here is a sample:
<asp:UpdatePanel ID="UpdatePanel2" runat="server" >
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" /> [code]...
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Feb 19, 2010
I have a simple updatepanel and I want to change the text of a Label inside of the Updatepanel when the UpdatePanel is updated.
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Jul 2, 2010
I have a user control embedded in an UpdatePanel. I'm trying to display a message on the parent page which contains the UpdatePanel when I complete some work in the code-behind of the usercontrol. It appears that due to the partial postback the event delegates that the original developer used to update the labels with messages don't get updated from calls within the user control. The call to the event delegate is executing and I can trace the execution including assigning the text to the label, but when the page is updated the message is not displayed.
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Mar 11, 2010
I am currently using a asp.net 2.0 with visual studio 2005.
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Mar 9, 2010
I have some code that I am working on that uses an UpdatePanel and some dynamically created buttons to perform functions. The problem is that the dynamically created buttons aren't working the same as my test static button, which is behaving exactly as it should be.
So I was wondering if someone would be willing to simply post an example (in VB.NET or C# please) of the following:
An UpdatePanel has a Label and a Placeholder inside of it
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Feb 7, 2011
well i am new to Grid View , so i am taking a simple scenario. well i have a visual webpartin sharepoint ; i have added a grid view with first column is of CheckBox Type & it has a Button & aLabel
i populate the grid view from an array of cities & i want that when button is clicked all the checked cities are appended in to the label.
code is below.
[code]....
while working i found that when button is clicked the page_load function build the grid view again & there fore all check boxes are initialised .
complete my code !!!!!
i do not want to do the same by using Javascript. i want to do this by C# only
& if possible tell me the way how can i put a checkbox near "Show" button that is used to check all the check boxes.
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Mar 17, 2010
I am using JavaScript to call a web service. The JS is correctly receiving and passing the web service information.
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[Code]....
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[Code]....
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Jan 7, 2010
What scriptmanager control and
updatepanel control role if we add this control to web page
and when we use triggers with update panel control.
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Jan 19, 2010
I get following error when I click on the button.I am Using IE 7.0 and Updatepanel control for AJAX in the aspx page (Not in master Page).This error goes After I clear cache.
"Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near ' <!DOCTYPE html PUB'."
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Jan 24, 2010
what is the uses f Triggers in UpdatePanel control
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Apr 23, 2010
I cannot determine why this is happening, but I have narrowed it down to the javascript in one of the controls in an updatepanel.
ASP.NET 2.0 aspx structure:
A formview contains a large updatepanel. The updatepanel contains all the controls on the page. Only three controls are autopostback=true: two dropdowns and a checkbox.
The last three controls in the updatepanel are textboxes. Their autopostback=false. Each textbox has an anchor whose javascript launches a pop-up calendar window. The pop-up calendar selection populates the corresponding textbox. No problems there.
The bug happens whenever I fill in all three dates at once (I launch the calendar three times and select a date each time), and then I click Save. The form's save action fails because the code can no longer get to the controls in the formview. The formview.controls.count is zero.
It works if I fill in any two of the three dates *or* I fill in all three dates by typing the values into the textboxes (bypassing the pop-up calendar). I can fill them in random order, and any one or two are fine, but all three at once triggers the error.
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Jan 30, 2010
I have an UpdatePanel with PlaceHolder inside.
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[Code]....
ASPX-code:
[Code]....
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Mar 5, 2011
On my MasterPage I use UpdatePanel to update whole ContentPlaceHolder. Example of code you can find below. All content pages work fine with this MasterPage except one. This page is very complex. I noticed that when I disable UpdatePanel in my MasterPage this problematic page works fine. Question: is it possible to exclude something from UpdatePanel - in my example whole page but only this one?
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ID="UpdatePanel2"
runat="server">
<ContentTemplate>
<asp:ContentPlaceHolder
id="MainContent"
runat="server">
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Mar 25, 2010
My popup panel is disappearing everytime the timer ticks in an updatepanel.How can i solve this problem please friends.
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Apr 14, 2010
This sounds weird, but I would like to NOT update a control that's within an update panel. Is this possible? basically the way facebook works, facebook controls are rendered on a "get" command. but I have controls within the same update panel that cause AJAX postbacks. When the postback's happen, I lose my facebook server-side controls. I am wondering if I can "unregister" a control from an update panel? Or do I just have to redesign that page.
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Sep 14, 2010
I have a custom control created to autofill the box as typed in. Its working great. But if I put the control inside an Update Panel, it works for the full postback but if partial postback happens (because of the update panel), it does not work.
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May 28, 2010
I started a new project using VS2010. I have a menu control connected with an XML datasource inside UpdatePanel, Menu control works fine, problem is the styling. using a StaticHoverStyle Css works only after the page reloads, when I click a menu entry, the entry is selected but StaticHoverStyle does not reflects the menu items anymore (of course when I hover the items) Same behave with both Net versions 3.5 and 4. When I remove the UpdatePanel the StaticHoverStyle comes back to life ( post back occurs ).
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Aug 5, 2010
I should probably say I love these forums, I've been viewing for some time and have found loads of valuable information. I'm having a problem with my project, I have an updatepanel containing several items (Two Daypilot Schedulers and a Literal Control). I have set it to conditional and have it update whenever bookings are added/modified in the schedulers. This all works perfectly! I then have a literal control which contains div items with onmouseover= parameters. The control basically contains a list of pending booking requests. On Page_Load I call a method which populates the list...which works fine.
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Dec 22, 2010
I'm new in developing and i'm in trouble with update a UpdatePanel inside a User Control from a Repeater inside another User Control.
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Jan 17, 2011
I want to change the visibility of two asp.net image controls (runat="server") at the beginning and the end of the method call duration. I mean, I want the first image displayed and second one remains hidden until the last line of my method, which in turn, the second image becomes visible and the first one hides. I've put the area of the triggering control in updatepanel and have declared triggers of the updatepanel; But when I press the control (which is a button), the image at the end of the process is displayed correctly and on time but the one which should be displayed in the first line of the method is not displayed. I've configured my updatepanel to use conditional update mode and have used these lines for my intention:
imgLoading.Visible = true;
..
rest of the process
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if (true)
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I am using a modal popup control which contains an UpdatePanel. There are one combo and few text boxes and Calendar control in it. When I select any item in combobox, then it's selection change event is fired and there iI set the values of other controls and finally I call update method of update panel. Functionality wise it works properly but it takes a time to update the panel.Here combobox contains around five thousands of items. But when it contains 100s of items it works good.
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