AJAX :: Communicate To The Controls Outside The Updatepanel From Inside The Panel?
Aug 24, 2010
i have a gridview in updatepannel, i want to display selected row's content in a text box which is outside the pannel. at the time of selection nothing appear in textbox. but if i put gridview outside the pannel then code works fine.
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Dec 10, 2010
I have problem to show method value on asp:Panel.
This is my *.aspx code :
[Code]....
Code Behind :
[Code]....
In this case, I can't show value myMethod at code behind to aspx file where this method is called.
If I use postBackTrigger in upControl updatePanel then the method(myMehod) will show on upShow updatePanel. But the updateProgress doesn't work.
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Aug 22, 2012
I have one repeater control in my web page.
And i want to bind this repeater control from button.
But button is in Update panel in ajax.
And repeater control is outside the updatePanel...
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May 27, 2010
The javascript generated by the asp.net SciptManager control seems to have a bug and cant handle hidden UpdatePanels. A javascript error is thrown when a control within one updated panel tries to make another update panel visible. Is this a bug with ASP.Net ajax? And does anyone have any ideas how to get around this? heres is an example of what im trying to do
<script type="text/C#" runat="server">
protected void LinkButton1_Click(object sender, EventArgs e)
{
Panel1.Visible = true;
}
</script>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkButton1_Click" Text="Show Panel"></asp:LinkButton>
</ContentTemplate>
</asp:UpdatePanel>
<asp:Panel ID="Panel1" runat="server" Visible="false">
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Panel>
this is the javascript error that gets thrown when clicking on the "LinkButton1" link. This error comes from the javascript that is generated by the asp.net ScriptManager control
Error: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'ctl00_ContentPlaceHolder1_UpdatePanel2'
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May 10, 2010
I have a couple of dropdowns inside an Ajax Update Panel. When I try to rebind the controls or set the selected index of the drodowns inside the panel, they don't respond.
For example, I update the database records and need the dropdowns to display updated data. I set the data source for the dropdowns, rebind them and update the UpdatePanel, but it still shows the old data.
[Code]....
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Aug 25, 2010
I had a group of controls. They were programmatically referenced so that I could change the text of the labels. It all worked well. So I just put an update panel in and put the controls [i]inside[/i] the UpdatePanel. Now the code that references these labels inside the update panel are no longer recognized. I imagine it's because they are inside the updatepanel now. But for some reason, the web application still works correctly, but the code is blotched up with errors every time a label inside the updatepanel is referenced. My question is, how do I programmatically reference the labels that are located inside the update panel?
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Feb 26, 2010
I use a tabcontrol with 2 tabs. In the second tabpanel as seen in the code I use a Fileuploadcontrol to upload Images from a users computer.
The problem is that I need to surround the tabcontrol with an updatepanel as I dont want a fullpage postback when switching between these 2 tabpanels. In this code I have the tabcontrol inside an updatepanel but the problem is that the Fileupload controls does not seem to work inside an updatepanel.
How will I solve this problem as I dont want a fullpage postback when switching between the tabs ?
[Code]....
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Sep 24, 2010
I have a gridview inside UpdatePanel.
Inside gridview there is a dropdownlist and a button on each row. On button click I am opening a panel through Modal popup extneder.
Inside that pop up there is again a dropdownlist. I am adding an item into this dropdownlist based on the selection from the dropdown inside gridview.
like ddl.items.insert(0,'xyz');
But first time this inserted item is not getting reflected in the dropdownlist. But after one postback this item is getting reflected.
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Sep 7, 2010
I had been created some dynamic radio buttons in a loop inside a dinamy table which is inside an UpdatePanel , but i can not handle the events my code is below:
public void MetodoCreacion()
{
RadioButton RBtn = null;
Table table = new Table();
TableRow row = null;
TableCell cell = null;
for (int i = 0; i < 5; i++)
{
row = new TableRow();
cell = new TableCell();
RBtn = new RadioButton();
RBtn.ID = "RBGN_" + i.ToString();
RBtn.GroupName = "RBGN1";
RBtn.Text = "Opcion " + i.ToString();
RBtn.CheckedChanged += new EventHandler(RBtn_CheckedChanged);
RBtn.AutoPostBack = true;
cell.Controls.Add(RBtn);
row.Controls.Add(cell);
table.Controls.Add(row);
}
UpdatePanel1_UpdatePanelAnimationExtender.Controls .Add(table);
}
public void RBtn_CheckedChanged (object sender, EventArgs e)
{
Label1.Text = ((RadioButton)sender).ID;
}
and the controls doesent call the event.
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Oct 4, 2010
I'm trying to add and edit an image which is located in a detailsview which is inside an UpdatePanel. After I read relevant topics in the forum I installed the Ajax Control Toolkit. Below is my source code. When I used it only for insert new image it worked great. The problem caused when I tried to implement it on the Edit mode, i.e. when I tried to edit the image and upload a different image. Unfortunately it didn't work as I hoped. Nothing happend and the image hasn't been changed. I also tried to change the IDs (AsyncFileUpload ID) to be the same in both places but it didn't work either.
The source code:
<asp:DetailsView ID="dvMovie" runat="server" Height="50px" Width="695px"
AutoGenerateRows="False" DataSourceID="sdsMovieById"
BorderColor="#E7E7FF" BorderStyle="None" BorderWidth="1px" [code].....
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Apr 14, 2010
I am having trouble wiht my AJAX collapsible Panel Extender. I have the CPE opening a panel that contains the Table of Contents of a document being displayed on the page. A user clicks on the link for a certain part of the document, the event triggers a C# function that gets the file that particular section is contained in an displays the section. Right now you have to, of course, click on the TitlePanel to open and to close the CPE. What I want to do is have it close automatically whenever a link inside the content panel has been clicked. I have tried placing this.cpeTOC.Collapsed=true; in the functiion that gets the files but it does not work. I have also tried the autocollapse property of the CPE and it just collapses whenever someone moves thier mouse from the titlepanel.
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Jan 6, 2014
three div tag having three button i have clicked a button i want to find which button clicked on which tag in asp.net
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Jan 9, 2010
I have a page with three update areas, Create, Edit, and Delete. The controls that do these three functions are inside separate update panels so when I'm doing Create, I only fill controls inside that updatepanel. Problem is I'm using asp validation controls on all the controls in the three areas. Therefore, when I press the "Go" button in the Create UpdatePanel, the validation fails on the empty controls in the other two area. I hope I'm explaining this well. The behavior I would like to see is that only the controls contained in the updating panel would be validate.
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Feb 25, 2010
have update panel that content check box, textbox, 3 DropDownList with CascadingDropDown extender. When I checked the checked box it should do a AsyncPostBackTrigger and it is working ok but the problem that if I select any thing from DropDownLists then check the box it would clear the DropDownLists after doing AsyncPostBackTrigger for the the check box.
any advice how to separate these controls inside update panel for doing AsyncPostBackTrigger??
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Oct 7, 2010
I have two update panels and one javascript control.
When the javascript button is clicked, it forces a partial postback on UpdatePanel2. UpdatePanel2 is populated with dynamically created buttons that have javascript effects (jquery) but when click can also induce a postback. My problem is that, when clicking on these dynamic buttons, the whole page does not do a partial post back but rather UpdatePanel2 itself does a partial postback and everything is gone.
However, what I want to do is be able to tie each of the dynamic buttons in UpdatePanel2 (After being dynamically created) and make them an asychnonous triggers to UpdatePanel1. So that when clicking on these dynamic buttons, ONLY UpdatePanel1 is doing a partial postback refresh. UpdatePanel2 stays put and remains the same.
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May 31, 2010
I am trying something different for me and trying to use controls without a lot of mods but that is going out the window already.Anyway I have an update panel with a dropdown which selects query data for datalist1. (works perfect)
Inside datalist1 I want to link a field to the query in datalist2 which I have but not correct to what I want. (kinda works)
Once selected it should display the datalist2 items which have a link to a file displayed in a new window. (datalist2 works)
The way I have it now the link in datalist1 uses a query string and refreshes the page not just use the update panel and I then lose the display in datalist 1.
Here is the code:
[Code]....
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Feb 22, 2011
i have to use multiple grids in a ajax tabcontainer inside an update panel
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Jan 17, 2010
onPageLoad event , i have Make MyPanel.Visible=false;
when some buttons Clicked the UpdatePanle is Updated and then Mypanel.Visible=true;
but the MyPanel still not visible , what i can do to make it visible?
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Oct 5, 2010
I have one update panel which is having tPlaceholder which is loading dynalically.
[Code]....
in the CS file on page load, adding Placeholder dynalically
[Code]....
And in Topics.aspx file, I have added one more updatepanel
[Code]....
onclick of Add Topics button, both the update panels are getting updated. I want only the inner update panel should update.
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Aug 16, 2010
I have an UpdatePanel with a GridView. This GridView has a template column that is a DropDownList. The problem is that the SelectedIndexChanged event does not fire for the DropDownList. Here is the code:
[Code]....
The codebehind:
[Code]....
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Jul 2, 2010
I am using a third party control that upload images. It works fine when i place it on aspx page (Outside DetailView) but I want to place that functionality inside EditItemTemplate but it just never work .
[Code]....
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Apr 15, 2010
I have a menu of buttons inside an UpdatePanel (UPD_Menu) so that buttons can be enabled/disabled without refreshing the entire page. When a user signs in, the Sign Up button is disabled and the Profile button is enabled. Likewise, when the user signs out, the Sign Up button is enabled and the Profile button is disabled.
Inside this UpdatePanel (UPD_Menu), along with the buttons, is a ModalPopupExtender that is fired by the Sign Up button (TargetControlId="BTN_MenuSignUp") that pops up a dialog Panel (PNL_SignupProfile) that contains yet another UpdatePanel (UPD_SignupProfile) that contains a Submit button as well as a Cancel button (CancelControlId="BTN_SelectCancel").
The behavior I am getting is when the user clicks no other button than the Sign Up button, the dialog (PNL_SignupProfile) pops up and is modal. The Submit button closes the dialog and makes the once-hidden panel appear under the menu of buttons. This is not good as only the inner UpdatePanel (UPD_SignupProfile) should be updated without affecting the outer UpdatePanel (UPD_Menu). The Cancel button works as it should by simply closing/hiding the dialog.
If a user clicks any other button in the menu first, nothing happens ( no codebehind yet) but when the dialog (PNL_SignupProfile) is shown, the Cancel button causes the hidden Panel (PNL_SignupProfile) to appear under the buttons. I've tried many different things to no avail...including putting the dialog panel in different places and even controlling the ModalPopupExtender from code.
The only code I have so far is for handling the signin/signout and enabling/disabling the signup and profile buttons based on user signin. There is no code yet to handle the menu of buttons nor the submit button of the popup dialog.
Here is the code:
[Code]....
[Code]....
[Code]....
[Code]....
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Dec 1, 2010
I am using FileUpload control inside UpdatePanel, but cant get it working and keep getting error : "Object reference not set to an instance..." on line: If fuAvatar.PostedFile.FileName <> "" Then I have checked several forum and people mentioned that we need PostBackTrigger but i just cant get it working and keep getting the "Object reference not set..." error. My FileUpload control is inside a panel and along with another control, and the upload occurs when user click on Finish button.
[Code]....
And my codebehind is:
[Code]....
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Dec 13, 2010
I'm having a problem with a dropdown throwing an error:
Uncaught Sys.WebForms.PageRequestManagerServerErrorException:
Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.Only Sometimes.
I am using an updatepanel, with a bunch of dropdowns that have an onchange for Javascript, that use ajax (partial page postback). The problem is: I have two dropdowns at the top (also inside the updatepanel) that let me change the current month or year. Sometimes...they change the page (response.redirect), and sometimes they throw that error above. Also, they are the Only two buttons on the page that aren't doing an "onchange" and then ajax stuff....they are actually posting back the entire page to the server (or trying to).
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Nov 8, 2010
TThis time I'm facing some unusual behavior with a web page that I'm developing. I have a table with several controls and gridviews and stuff. At some point of the table, i have to show some rows (they were hidden) when the users clicks a button. I was doing this with a PlaceHolder, but now i have to do it without the postback being displayed. I thought: "That should be easy, all i have to do is to put the PlaceHolder inside an UpdatePanel, and that's it" but no, no no nooo!! NOTHING IS THAT EASY!!! It actually works but it puts the hidden rows at the top of the page, not where they suppose to go!!My code is the following:
<asp:UpdatePanel runat="server" ID="uplAutoridadesAmbientales">
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