Web Forms :: Dynamically Add Controls Inside UserControl
Jan 19, 2010
Im trying to add a new "Question UserControl" dynamically to my page each time the user presses "Add question". This works fine and the last control gets deleted when the "Delete question" is pressed. My problem is that in each of the "Question UserControls" i have a placeholder where i would like to add a new Textbox when the user presses "Add answer" and then delete it once the "Delete answer is pressed". The way it works now when i press add answer, an Answer Textbox gets added to the placeholders in all the added Usercontrols. But i only want to add it to the one UserControl where the user pressed "Add answer".
I've a ASP.Net page (Default.aspx) which will load UserControl (ucontrol.ascx) dynamically into an UpdatePanel. By using UpdatePanel, we believe we're able to prevent the entire page to be posted-back.
My problem is, within the UserControl, we have some form controls, such as inputs and buttons; after the UserControl is loaded, clicking on any button inside the UserControl will cause the UpdatePanel to be blanked. During the investigation, I found that, breakpoints within the Button1_Click() in the code-behind for the UserControl is never reached. Please reference to the code below, this references to [REFERENCE]1.
I need to insert some JavaScript code inside a UserControl that I load from an Ajax call via jQuery Ui Tabs. Let me explain... This is my View (with jQuery loaded)
<script type="text/javascript"> $(document).ready(function () { $("#tabs").tabs({ cache: false, }); getContentTab (1); }); function getContentTab(index) { var url='<%= Url.Content("~/Home/getUserControl") %>/' + index; var targetDiv = "#tabs-" + index; $.get(url,null, function(result) { $(targetDiv).html(result); }); } </script> <div id="tabs"> <ul> <li><a href="#tabs-1" onclick="getContentTab(1);">Nunc tincidunt</a></li> <li><a href="#tabs-2" onclick="getContentTab(2);">Proin dolor</a></li> <li><a href="#tabs-3" onclick="getContentTab(3);">Aenean lacinia</a></li> </ul> <div id="tabs-1"> </div> <div id="tabs-2"> </div> <div id="tabs-3"> </div> </div> With these lines of code I call the Ajax function to load the content into a DIV. This is the Action from the controller: public ActionResult getUserControl(int num) { return PartialView("TestUC", num); } And this is the UserControl... <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %> Number... <span id="testSpan"><%=Model.ToString() %></span>!! <input type="button" value="Click me!!" onclick="message();" /> <script type="text/javascript"> function message(item) { alert($("#testSpan").html()); } </script>
The problem is that the message() function returns always 1 (instead of returning the correct number). My question is... How should I add the script to my UserControl in order to have my code running correctly?
I have UserControl that has asp control(<asp:Button runat="server" ID="btn" />) and I want to render it. I tried 1
[Code]....
It doesn't works because it says that each control that has runat="server" must be in Form.I also tried 2:Because loader.Form is null, I create HtmlForm and added the ctrl to it and then added HtmlForm to loader's Control, BUT it says that it has 2 HtmlForm. So, instead I "injected" HtmlForm to loader like this [Code]....
Now no error is occurred, BUT StringWriter is empty. don't tell me to add Page to solution and override OnRender. I want to do it as I mentioned above.
I have a ListView showing just a list of concatenated strings obtained from different field of the objects of the datasource.
A LinkButton (with CommandName="Edit") in each row Event handlers for OnItemDataBound and OnItemEditing
A UserControl in EditTemplate.
Now the problem is, I don't know how to use Bind expression in the UserControl. I mean, how to populate this usercontrol when the linkbutton is clicked? (I tried capturing the control in theOnItemEditing handler. But FindControl returned null, as that handler is called before going to edit mode.)
I have a usercontrol with a datagrid that is used throughout my web application. The datasource is passed in a public method from the master page to this usercontrol, as the data selection is different on each page where this usercontrol is used.But by doing this, I'm having a problem with paging, as the datasource is lost after postback. I can't do the data selection in the usercontrol itself as the dataset is passed as a parameter.
1. When executed I have a "Add Building" and "Click here to add tower" on the page.
2. When clicked on "Add Building" a editable gridview appears when I enter the text and say update.
3. When I click on "Click here to add tower" another button "Add Tower" is displayed on the
page.
4. On this "Click here to add tower" event I have called the usercontrol, where the usercontrol has a editable gridview and a button called "Add Tower".
5. When I click on "Add Tower" a editable gridview should be displayed but the editable gridview is not displayed ,it disappears.
6. Postback is happening ,so I am not getting where and how to handle the postback and even the viewstate
I have a UserControl inside the ItemTemplate of my FormView and I need to access it in order to get an event fired off. As the UserControl is inside the template, my event cannot see it!
I created simple web usercontrol ABC with Yes/No button.In Current pages submit Button Click it popup's ABC user control. ABC user controls Yes button Click it executes some serverside function.But I want to close/hide this user control after the Yes button Click ( like confirm box in javascript).But its not hiding after setting the visible property to false. Is there any way to implement this...
I have created a real simple templated UserControl and
I can now add this control to my Asp.net WebApplication using:
[code]...
i can embed this in a page (aspx) but i is not working in usercontrol (ascx). when i use this inside usercontrol, the designer file (.ascx.designer.cs) itself not getting generated.
getting the following error:
Element 'Box' is not a known element. This can occur if there is an error in the webpage, or the web.config file is missing.
Update: sometimes it works! i created couple of controls. it works in some place and it doesnot works in someother place.
I have a masterpage and inside that masterage is a user control that has a toolbar with a save button. I then have an aspx page that inherits form t he master page. In that page I have and updatepanel. Is it possible to set the post back trigger to the Save button inside the usercontrol?
Click Me in a UserControl. I downloaded the sample attached there and its working fine but i am trying to create UserControl out of it. No rows are getting loaded on scrolling down. I modified the code to look like this..
var lastProductId = $("#<%=Test1.GridView1.ClientID %> tr:last").children("td:first").html(); //get last table row in order to append the new products var lastRow = $("#<%=Test1.GridView1.ClientID %> tr:last"); AND,
function GetRowsCount() { //Count no. of rows except header row in the grid. var rowCount = $('#<%=Test1.GridView1.ClientID %> tr').length - 1; return rowCount;
Its giving me error: The name 'Test1' does not exist in the current context. Test1 is the Id of my USerControl. Test1 is the ID of UserControl. I found your tutorial on similar issue but i did not use it because i am not using stored procedure and i know nothing about XML. At this point i just want to make the sample attached in that article(one i provided) to work as a UserControl.
I am using a usercontrol which has two textboxes named txtUserName,txtPassword and a button named btnSubmit.I am using this usercontrol in my webpage.I want to show alert message in the webpage if the user didnot enter the username or password .
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.
I have a user control with a textbox. I am loading it at runtime on parent page with code behind.After click of button on a parent page i need the text of that usercontrol's textbox.
I tried with following code but it does not work for me
myusercontrol us = new myusercontrol(); TextBox textbox = (TextBox)us.FindControl("txtusercontrol"); string str = textbox.Text.ToString();
I have a Page (created using master page) it has a UserControl and i want to reload the UserControl on button click (button in page outside the UserControl). I do not want to reload entire page. I want to reload just the UserControl.ASPX:
I would like to load UserControl dynamically from DLL in the bin directory.
The dll contains several usercontrols which dynamically create webcontrols within them.
I do not have Virtual Path of the UserControls to use in LoadControl(String virtualpath) and LoadControl(Type, object[]) does not work(why the heck is it there in the first place anyways).
provide me some sample code which takes either the path of dll or assembly name "ServerControls" to load usercontrol "UserControl1" dynamically into placeholder "PlaceHolder1"
I am trying to add UserControl dynamically to the page. UserControl is added only once (when the page loads) but on postback it doesn't add again (Only one control is alwasys there).I want to add user control Whenever user clicks "btnAddUCWingControl" so when the page loads for first time, there will be only one control, on postback there must be TWO controls and so on
