Add User Control After Page Is Loaded?

Aug 31, 2010

I am trying to add dynamically a user control I created to an aspx page after it is loaded. I tried sending an ajax request to a handler that used RenderControl function and sent back the control's html. I appended it to the DOM using javascript.

The problem is that some of the controls must go through their Page_Load function and that doesn't happen when using RenderControl function.

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C# - Updating Parent Page From Dynamically Loaded User Control

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Hosting page:

protected void Page_Load(object sender, EventArgs e)
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I need to update datalist in image gallery when fileupload has been completed.

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In the Control File Upload I need to fire the the other ctrl to refresh the page.

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On my web page, I have few controls.

Sometime one of those control was not completly loaded.

I would how do I know a user control was completly loaded.

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I have created a web user control (MemberDetails.ascx) which is loaded dynamically on a page (Member.aspx) for my website. The control has some TextBoxes. I want to store the values inputted by a user in these TextBoxes to a database on the click event of a button that is on the Member.aspx page (i.e. not a part of user control).

I'll use a small code for example.

Member.ascx page:

[Code]....

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I have created a user control that contains two asp calendar controls. I need to add this user control twice on the same asp page, let's say for Check in date and Check out date. Since the two are conflicting to each other when I add it twice statically, I now dynamically add them on button click so that each time only one control is loaded. The problem is, when I select a date on a calendar, it seems that the selection event is not happening at all. Of course, I am not getting any date.

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I'm doing a menu that loads levels dynamicly, when you click on a item the next level is loaded asynchronously. For each menu item I have a user control. Every user control is declared in its parent, for example, the "secondlevelcontrol" has the reference to "thirdlevelcontrol".With this level of nesting, I want to manage the asynchronous calls on every user control so, when the first level is loaded the javascript to load the second is loaded too. When the second level is loaded the javascript to load the third is loaded too.

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[code]...

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C# - Viewstate Variable Lost On User Control Loaded Dynamically

Feb 12, 2010

I have a problem with ViewState. I have an aspx page that has a treeview on the left and an UpdatePanel with an ASP.NET Panel inside on the right. It is in that inner Panel where I load and unload dynamically user controls. I use that update panel to load dynamically controls.

I also made a custom control for my user controls because I need to pass some values from page. On that constructor I use ViewState to store these values.

The first time I load the user control I call its constructor with parameters. When I reload that user control on each postback I use its normal constructor.

My problem is I the values I've stored on ViewState has become null on successive postback.

Update:

This is a piece of my user control:

public class MyUserControl : System.Web.UI.UserControl
{
private int PKId
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...
}

I'm following this article to load controls dynamically: http://msdn.microsoft.com/en-us/magazine/cc748662.aspx#id0070065.

Second Update:
I also set the same control ID when I load the user control at first time and on each reaload.

Maybe I can use another method to store these values like input hidden fields or Cache. I've choosen ViewState because I don't want to overload server with Session values for each user.

Third update:

I load the controls with this code:

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{
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Dynamically Loaded User Control Click Event Not Getting Triggered?

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trigger dynamically loaded usercontrols click event?

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[Code] .....

Fail to redirect user to google.com by clicking button which written in .ascx file.

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I have a aspx page, default.aspx, with an user control in it. Inside the user control (UC 1) there is a DataGrid. When the DataGrid is loading data with ItemDataBound, I need to dynamically load another user control (UC 2) for each row in the DataGrid. UC 2 has a Button ( BTN )with an eventhandler associated with it in code behind.

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[Code]....

And the following is UC 2 the is being loaded:

[Code]....

[Code]....

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Handle Button Click Event From User Control Loaded Dynamically

Jul 31, 2010

I have a blank user control (child) and during Page_Load i create some text boxes and a button. I also add an event to the button.

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Child code:

[code].....

If i use the child control directy (ie without the parent the control) the click event is raised and handled nicely. But when i use the parent control, the debugger wont even hit a breakpoint inside UpdateButton_Click().

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I have a tab control on my page  and on click of tab  user control is loaded dynamically.I need to load the javascript file  of that user control dynamically. I don't want to add the reference of my js file on parent page.so in my .ascx page load event i added:

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I have some logging that has to be done, which are some database update or inserts.

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I've been checking out Ajax, async pages etc, but the problem is it still gets executed before the page is rendered to the client, which means the client will have to wait longer then it is not being processed.

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I have a user control that is dynamically added to a placeholder control inside an update panel in my main page. The user control has a linkbutton where I try to handle its Command event. The first time the link button is clicked after the user control loads, the form posts back but the command event handler does not execute, although the user control is still on the screen. The second and subsequent times the link button is clicked it works perfectly. When the user control first loads and I mouse over the link button, the browser status bar says: javascript: __doPostBack('ctl08$lbTest',''). After the first click, when I mouseover the link button the browser status bar shows javascript:__doPostBack('ctl07$lbTest',''). Why the changed in id, I can't figure but it must be why it is not hitting the event handler the first time it's clicked. Here is the cs code that loads the user control:

[Code]....

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Mar 13, 2010

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[code].....

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[code]....

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javascript:__doPostBack('dnn$ctr498$AssignmentsList$rptAssignments$ctl04$ctl00$lbnUpdate','')

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I've got a web site that has a master page and that master page (mpMaster that has a user control ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page
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