Web Forms :: Dynamically Loaded User Control Button Event Not Firing?

Mar 11, 2011

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.

User control loading is fine, and the Button, BTN, is there. However, when I click the Button, the eventhandler is not reached, not firing, even though the page does postback. I googled for this issues, and I know the dynamically loaded user controls need to be loaded every time the page is postback. In my case, it needs to be loaded each time the datagrid is doing ItemDataBound. I did it and even hook up the eventhandler with button click event each time when the user control is dynamically loaded. I set EnableViewState to true on the Page and controls.

The following is part of the code from UC 1, AcctPaymentDetail is UC 2 in the code.

[Code]....

And the following is UC 2 the is being loaded:

[Code]....

[Code]....

View 6 Replies


Similar Messages:

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.

I then load that user control dynamically from a placeholder in another usercontrol (parent). Both controls are rendered correctly but when i click on the button, the event isnt fired. how to handle the event?

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().

View 1 Replies

Web Forms :: Linkbutton In Dynamically Loaded User Control Does Not Handle Command Event

Feb 27, 2011

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]....

View 2 Replies

Dynamically Loaded User Control Click Event Not Getting Triggered?

Jun 11, 2012

trigger dynamically loaded usercontrols click event?

What i did.........Created User Control like One.ascx with one button

<%@ Control Language="C#" AutoEventWireup="false" CodeFile="one.ascx.cs" Inherits="one" %>
<asp:Label ID="Label1" runat="server" Text="Hello, this is My First User Control dynamically loaded :)">
</asp:Label><asp:Button ID="btnShow" runat="server" Text="Show" OnClick="btnShow_Click" />
On Code behind        public void btnShow_Click(object sender, EventArgs e)    {    

[Code] .....

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

View 1 Replies

Usercontrols - Button Click Not Caught (button In User Control Which Is Dynamically Loaded In Repeater)?

Jun 4, 2010

I have written a user control that captures some user input and has a Save button to save it to the DB. I use a repeater to render a number of these controls on the page - imagine a list of multiple choice questions with a Save button by each question.

I am loading the user control inside the repeater's ItemDataBound event like this (code simplified):

[code]....

The problem is that when the Save button is clicked, the page posts back, but lbnUpdate_Click is not called. The Page_Load event of the page itself is called however.

I should mention that the repeater is part of a user control, and that user control is loaded inside another user control (this is a DotNetNuke site which makes heavy use of user controls). The Save button link looks like this:

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

View 3 Replies

Web Forms :: Dynamically Created Button Control Click Event Not Firing First Time?

Sep 16, 2010

im creating a button control in page int and im assing a click event for the button control. here the click event is not firing for the first time. here is my code.

[Code]....

View 1 Replies

Web Forms :: User Control Link Button Click Event Not Firing On First Try?

Jun 9, 2010

Here is what i am trying to do I have a multiview and two views in it so based on click event the link the views change

[code]....

apparently they are not firing on first try. The reason i am doing this is the two views have tables with different images to be used in building my menu.

What am i doing wrong? or why is the click event firing on second try?

View 3 Replies

Web Forms :: When To Wire Up Event Handlers For Dynamically Loaded User Controls

Jul 15, 2010

I have a situation where I dynamically load one of twenty user controls at a time in an ASP.net web page. Based on much reading I've done, I understand that I am to reload the user control upon postback via the Page_Init event handler. This I've done and it seems to work fine.

But now I would like to wire up assorted controls in the user controls such that when the value of each is changed, an event is fired and the web page is notified. Here's an example of how I'm doing that:

userControl.NewData_Handler += new EventHandler(UserControl_NewData_Handler);

There's a problem though. Because the user control is being done in Page_Init (ie. before Page_Load) I don't believe that a line of code such as the one above can function yet.

So I'm wondering what the best practice to do this is. It occurred to me that perhaps I could execute the line in the Page_Load event handler but I'm not sure if that's correct or not.

View 2 Replies

Forms Data Controls :: Dynamically Loaded Usercontrol Won't Fire Button Click Event

Dec 24, 2010

I have a dynamically loaded usercontrol

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="ucEditPanel.ascx.cs"

View 1 Replies

Web Forms :: Dynamically Created Button's Event Is Not Firing?

May 26, 2010

I have a accordion control inside an update panel. As I loop through the Products table and the Details table in the code behind, I'm creating the accordion panes that will display the data. There's an "Add to Cart" button created for each product (each accordion pane), and I'm asigning an EventHandler for that button, but it never fires... Here's the code where I'm creating and adding the button to the page:

[Code]....

[Code]....

[Code]....

And here is the code event that is suposed to fire:Private Sub addToCart(ByVal sender As Object, ByVal e As CommandEventArgs)

View 3 Replies

Web Forms :: How To Add Weparts Dynamically - Button Click Event Not Firing

Mar 28, 2011

Am adding a sample webpart dynamically in which i add a Button Control.the isssue is Event is getting fired when i Click on the scond time and the other issue is the web parts are getting duplicated for each postback.

View 1 Replies

Web Forms :: Dynamically Created Button Click Event Firing?

Mar 8, 2010

I am creating two buttons within the StoryGet() method, first when the page loads. When one of the buttons is pushed, lets say the left one - I want to call another method - "ButtonLeft_Click"

Ive used this same solution in other sites and it worked. With this solution, click event never fires.

If I move the StoryGet() call from Page_Load to PageInit() the button event fires, but because this event also calls StoryGet() the method runs twice, which I don't want.

I tried adding this to page_init so the original StoryGet() method only gets run the first time the page loads unless the method is called directly but then the page loads, but the button click event doesn't run again

if (!this.IsPostBack)
{
piccount = 0;
StoryGet();
}

[Code]....

View 18 Replies

Web Forms :: Click Event Of Dynamically Created Link Button Is Not Firing

May 7, 2015

I have web page which inherit master page.

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

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="updatePanel1" runat="server">
<ContentTemplate>
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>

[Code] .....

View 1 Replies

Web Forms :: Dynamically Loaded User Control Not Getting Selected Value?

Nov 5, 2010

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.

View 4 Replies

Web Forms :: Group Events And Dynamically Loaded User Control?

Oct 26, 2010

My main file is messages.aspx and i am loading a UC names message_inbox.ascx dynamically as:

SiteUserControls_Message_MessageInbox InboxUC = Page.Load("message_inbox.ascx") as
SiteUserControls_Message_MessageInbox

Now in my user control ("message_inbox.ascx") i have a various events which i am combining in one group event :

public void ForwardLinkButton_OnClick(object sender, EventArgs e)

View 7 Replies

Web Forms :: Event Not Firing On Dynamically Added Control

Feb 23, 2011

While I am using a "Telerik" control here it shouldn't be any different I guess;

[code]....

What happens is that the control is created and rendered;

When I change value in the Combo box a Post-Back happens.

HOWEVER, the event RadComboBoxSelectedIndexChanged does not fire. Also when I am back at the page the new value is not saved; Obviously, i recreate the control every time. If I don't I get a ViewState error. Seems to me that there some ViewState management problem, but I cannot identify it...

View 2 Replies

Web Forms :: Firing Click Event On A User-control That Is Created From Another Event?

Mar 1, 2011

I have a gridview called gvResults. In the gvResults_RowEditing event I add a row below the one selected. In that new row, which spans all columns, I insert a user-control. There are two buttons and some textboxes in the user control.

My problem is that when I click one of the user-control buttons it never gets to the button event handler, I think because the user control is not recreated on the page postback. How can I have the user-control events fire before the parent page events fire?

I tried using an update panel, but I still get the parent posting back before the user-control events.

View 3 Replies

Web Forms :: Load JavaScript File Dynamically When User Control Is Loaded

Jun 17, 2013

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:

System.Web.UI.HtmlControls.HtmlGenericControl js = new System.Web.UI.HtmlControls.HtmlGenericControl("script");
js.Attributes["type"] = "text/javascript";
js.Attributes["src"] = "../../js/DatesJavaScript.js";
Page.Header.Controls.Add(js);
 
but it is not working.

View 1 Replies

Accessing Value From The Controls Within A Dynamically Loaded Web User Control?

Jul 31, 2010

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]....

View 1 Replies

Web Forms :: User Control Event Not Firing

Mar 2, 2010

I am loading in a user control on page load and events are never firing. The user control loads fine with the correct information. it contains two dropdowns and an

calendar control. The dropdown selection changed event is never fired. I am not sure if there is something wrong while control is being rendered.

[code]....

View 3 Replies

C# - Updating Parent Page From Dynamically Loaded User Control

Feb 20, 2011

Hosting page:

protected void Page_Load(object sender, EventArgs e)
{
LoadMyControl(Parameters); //Do it every page load to preserve it's state
}
protected void LoadMyControl(string parameters)
{
plchld.Controls.Clear();
Control userControl = LoadControl("TheUserControl.ascx");
userControl.ID = "userControl1";
plchld.Controls.Add(userControl);
}

Now inside this control, when a button is clicked I want to update ,let's say a Label on the hosting page.
What is the best way to do it? Custom event?

View 1 Replies

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
{
get { return ViewState["pkId"] as int; }
set { ViewState["pkId"] = value; }
}
public MyUserControl(int pkId)
{
this.PKId = pkId;
}
...
}

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:

System.Web.UI.UserControl baseControl = LoadControl(ucUrl) as System.Web.UI.UserControl;
if (baseControl != null)
{
baseControl.ID = "DestinationUserControl";
PanelDestination.Controls.Add(baseControl);
}

And reaload with this code:

DynamicControls.CreateDestination ud = this.LoadControl(TrackedUserControl) as DynamicControls.CreateDestination;
if (ud != null)
{
ud.ID = "DestinationUserControl";
PanelDestination.Controls.Add(ud);
}

View 4 Replies

How To Raise Events To Page From Dynamically Loaded User Control

Feb 23, 2010

I have user control that inherits a base control class and these user controls are loaded using the LoadControl method, I can't seem to figure out how to raise events from user controls to the page that are dynamically loaded this way. Here is the delegate and event in the base user control class.

public delegate void SomeChangeEventHandler(object sender
, SomeChangeEventArgs e);
public event SomeChangeEventHandler SomeChangeEvent;
public virtual void OnSomeChanged(SomeChangeEventArgs e)
{
if (SomeChangeEvent != null)
{
SomeChangeEvent(this, e);
}
}

View 1 Replies

Web Forms :: How To Stop Body Onload= Event From Firing When User Clicks Server Side Button

Nov 1, 2010

how to stop body onload= event from firing when user clicks server side button .

this is my below code in client side

[code]....

when i clicks server side button it raises body onload function again?

I want to raise this body onload function only when page load not in server side button click.

View 6 Replies

Web Forms :: OnClick Event Is Not Firing For LinkButton And User Control Is Disappearing

Dec 30, 2010

I am using the following code to load user control on to ASPX Page, which under a Master Page:

[Code]....

The user control name is passed as a parameter on the URL.

Inside the user, there is a LinkButton. The link button has a simple server side code for OnClick event.

Everything is working fine on the production machine, but, on the Development machine, I can see incorrect behaviour. I have started making some development changes on the Development Machine since several months back, and it will be very difficult to find out what caused the problem.

When I click the LinkButton inside the user control, the user control is removed from the parent page, and the OnClick event of the LinkButton is not firing.

I did debug, and found out that after I click on the LinkButton inside the user control, then the Page Load events for the master page and the ASPX page are working fine, and the IsPostBack is set to true, but the OnClick event of the LinkButton is not firing.

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved