AJAX :: Dynamically Adding A Link Button To An Updatepanel
Jul 26, 2010
I have gone through several posts on this forum about adding a linkbutton to an updatepanel dynamically. A lot of them say just give it a unique ID and some say you have to register add an AsyncPostBackTrigger to the triggers collection. I have tried both and neither work. I have this simple test that I created - the code is below - there is nothing else in this project but the code you see so I know nothing else is interfering with it.
I have also seem people complaining that the linkbutton causes the entire page to postback - in my case nothing happens... I have seen people talk about having to add the triggers on the page init however I can't do that - I am dynamically creating menus based on a selection in a listbox... (not in this simple test but in a larger project) I am using Visual web developer express 2010 if that makes any difference.
my requirement is i want to add education details having three fields
1) name of school 2)name of city 3)Degree
some persons will studied only in one school . some in 2 . aome in 3. how to add dynamically .and after that i want to show the data to admin .if there is 2 means i want to display 2 school informa
I am trying to add a modal pop up extender to a gridview's link button. this modal pop up will again display another grid view with edit,delete and save buttons.
so now My question is How can I display the modal pop up extender with another gridview? What will be its
[Code].....
By clicking on this button it should display another gridview (inside a panel which is ready)
But what will be the code I need to add? Where can I add modalpopupextender.show()etc
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
The Placeholder has a dynamic button added to it
Clicking on this button will make the Label say "Hi" without performing a full page postback.
If I can just get that much to work, I am sure that the rest of the code will be fine. I just can't seem to get my dynamic buttons to act like my static ones do in an UpdatePanel.
As per my need I want to dynamically load accordion pane and inside that I want to load an ascx control. I am attaching my code for reference. But when I run my code it does not create separate pane.
I have a page with a ScriptManager, a generic HTML drop-down list (<select>), and an UpdatePanel. The UpdatePanel contains a PlaceHolder (for now). During Page_Load, a number of user controls are added to the PlaceHolder (really, it's several instances of the same user control). The number to add is not known until the page loads, so they do need to be loaded dynamically. The drop-down list is populated with the same number of menu items, and there is javascript on the page also (using jQuery) to show only one of the controls at a time depending on the state of the drop-down list.
Each user control has two buttons that should generate an asynchronous postback, a drop-down list that should generate an asynchronous postback on a change in selected value, and a button that should generate a synchronous postback. If I was not generating the controls dynamically, and if there was only one control, the structure would be something like:
[code]....
Of course, all the controls inside the ContentTemplate would actually be part of each user control.
Adding the triggers on the server side does not seem to work because no ControlID seems to the UpdatePanel find the relevant controls. I can use either the control's ID or the control's UniqueID, and it does not work, and I get an error along the lines of
A control with ID 'ctl00$ContentPlaceHolder1$ctl01$asyncButton1' could not be found for the trigger in UpdatePanel 'myUpdatePanel'.
So, I wonder if I need to register the triggers in the client instead using ASP.NET Ajax. I found this page that basically explains how. However, I do not know how to get the EventName taken into consideration. The examples I have seen so far have merely been adding button clicks, but I don't know how to handle the SelectedIndexChanged event from the DropDownList.
Are there examples out there I have missed? It doesn't , of course, that the method in the link I gave appears to be "unofficial," so I don't see any MSDN documents on the subject.
Here is what I am trying to do. I have a page with two link buttons and an updatepanel (the two linkbuttons trigger the updatepanel). I have two usercontrols which have labels with same ID's. When I click the first link button, I add the first usercontrol to the updatepanel and set the label value to datetime.now
when i click the second link button i add the second usercontrol but i see that the value of the label from the first control is set in the label in second user control. if the id's are different there is no problem - but in my case the usercontrols are being developed by different teams and I am integrating them in the way i mentioned - so they may have same ids.
How do I do this? Basically, next to the page numbers in the GridView I want a link button to disable paging. This works, but I want the button inside the footer of the GridView, next to the page numbers.
I'm trying to execute a linkButton inside a updatePanel, but was giving the follow error:
"Sys.WebForms.PageRequestManagerParserErrorException: The message received form the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(). "
I've extended gridview, and added it a linkbutton, when i have'nt select a datasoruce for gridview the linkbutton causes postback and onclick fires, however when i select a datasource for grdiview the linkbutton does'nt cause postback. I've also test onclientclick property and href attribute and assigned them page.getpostbackevent, and they did'nt work here is my code:
i am working on a website,As i am new to coding i got a problem in it. It was, i hav dynamically generated link buttons in my page, If i click on the any link button i should get the text of the link button, how to get it ?
I'm having an issue with trying to add a button to my grid. My GridView is first loaded with data in the PageLoad event.
I'm then taking the data in the first cell of each row, and creating a button that will link to a URL. To get the URL, I have to run a query with the data in the first cell as a parameter. I was doing this in the RowDataBound event at first, but hitting that query for every row was making it really slow.
So I decided to add a button that would retrieve the URL only when you clicked the button.
Here's my GridView:
[Code]....
The grid generates fine, the button gets added to the grid for each row. But when I click on it, the RowCommand event doesn't fire, and the page just refreshes.
I need to add a Button to the PlaceHolder depending on the values of the data I am binding. At the moment I am adding the Button after the data is bound in Page_Load. The problem is that the data binding methods are not called in postbacks, so the Button disappears when I click on it.
Problem is that I need to know some attributes of the grid item to create the Button, so I cannot create it before the data has been bound.
I am trying to add/insert linkbutton dynamically inside gridview row, below is the code
[Code]....
Problem I facing is that the data table is getting created fine with teh linkbutton as well but the gridview is not showing the linkbutton. upon executing I am only the column which is of string type.
Their is placeholder inside update panel to which i add my dynamicaly created a div which contain a link button (dynamically created). When i click link button div get disappear and link click event is not fired
I just don't understand how this is done. I've gone through several questions here and from a few other websites.
Basically, a company will be adding process steps, and I want there to be a textbox with a button next to it that reads "Add another step." Once clicked, a new textbox will appear beneath the current one, and the button will be moved next to the new text box. What do I need to do?
I got an updatepanel which contains a normal panel on MasterPage. The updatepanel does not contain content place holder. On the content page, I have to add triggers to updatepanel for buttons that are dynamically created on "page_load" event. The problem is that, since the page_load event of content page is being called before master page's page_load event, UpdatePanel is not being created. So that, whenever i try to add triggers in page_load event of content page, i got an error like "A control with ID 'ctl00$editableContent$ctl42' could not be found for the trigger in UpdatePanel 'up1'."
The code below is for adding triggers to updatepanel for buttons.
MasterClass master = (MasterClass)Page.Master; AsyncPostBackTrigger trig = new AsyncPostBackTrigger(); [code]....
I have checked this article link here and its good.. What i want is how can i avoid the button.. mean add the row dynamically without using the button click event.. Instead use text changed event..
I have an update panel and inside there are a button i want when i press the button the content well be cleared and then a label will be added to the update panel dynamicly and focus that the button is inside the update panel
