I would like to get the textbox dynamically loaded at the change of dropdown box and get the values entered in the textboxes into the result textbox.Once i change the dropdown box, i get the texboxes, but when I click the button , the textboxes disappear..
I have a repeater which is binded using a Collection of Entity Data Framework.
Once the repeater is binded using the datasource, the user can control the no of rows present in the repeater using a Dropdown list on the page. For ex: if datasource has 2 rows, user want to add 3 more rows, user selects 5 from dropdown, which adds 3 additional rows to the Repeater. I am able to do this.
The repeater has textbox controls in each row. Now once the user enter the values in this textbox of the newly generated rows, the user can save the values entered with the no of rows specified.
I have a button which is outside the repeater and on click of this i need to validate all the textbox values and save them into dB accordingly.
Here is my code
Repeater.aspx
[Code]....
[Code]....
Repeater.aspx.cs
[Code]....
Right now the problem is im not able to fetch the values of the textboxes present in the newly generated rows.
I want to make a profile page, so the first time the page get loaded they can fill in there profile page. Iff they come for second time the page will load the information out of the database and put it into the textboxes.
Does anyone know how i need to put that information in textboxes...?
I had an issue when I began working on my project, see this thread where I couldn't debug my DLL's. All I had to do to solve it, though it took me forevever to find this, was to hit F5. This doesn't make much sense since they are DLLs and I get a message that I can't run them directly, but whatever, it works. The output is generated as debuggable and I can copy it to my deployment directory and run and hit BPs (I attach to aspnet_wp).
My VS solution is four projects, all are DLLs, and one is called directly by my web application and it calls the others. There are two I am interested in debugging as I am enhancing them.
Maybe I jinxed myself, but I was actually musing recently that if I never figured out why I couldn't debug I'd never have progressed as much as I had in my task. Yesterday I backed up my project to a zip file - source and DLL's - because I was starting on a new piece. The only thing I did to the solution after that was move a module from App_LocalResources to App_Code, then I moved it back. And I added some code. When I tried to set BP's the next time I ran, I got "symbols not loaded". I haven't been able to debug since. I tried restoring the zip file since yesterday I could debug, but I didn't hit BPs there either. I will be researching this the rest of the day, I am sure, but I thought I would ask for specific since maybe I can tell you something that will you to know what I did wrong or you can throw out a question that will trigger to me what I am doing wrong. This is really not how I wanted to be spending a Friday.
The LoadSubPageEditTemplate() is also fired from a button event on the page, since I have to update it after the button event has executed.
The control loads perfectly, I have tested it with a basic button and the postback fires as expected. However, I am getting weird results with CheckBoxes.
The CheckedChanged event only fires when the Checkbox is checked, which I guess means there is some issue with my control viewstate. If I have multiple checkboxes on the page, and one creates a postback, the checkchanged event is fired for each checkbox that is checked.
It is a header with two columns: On left column there is a TreeView, and on the left there is nothing (now there is a label to try the thing that I want to do).
When user select a node on treeview a click on Edit button. Code for click event is:
protected void Edit_Click(object sender, EventArgs e) { if ((DestinationTree.SelectedNode != null) && (DestinationTree.SelectedNode.Depth > 0)) { BaseControl baseControl = new BaseControl(); UpdatePanelRight.ContentTemplateContainer.Controls.Clear(); switch (DestinationTree.SelectedNode.Depth) { case 1: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control1.ascx"); break; case 2: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control2.ascx"); break; case 3: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control3.ascx"); break; } UpdatePanelRight.ContentTemplateContainer.Controls.Add(baseControl); } }
Depending on node selected depth is going to load a custom control dynamically. It works, but when the user select another node on treeview, the original label is reloaded on right column.
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).
It is a header with two columns: On left column there is a TreeView, and on the left there is nothing (now there is a label to try the thing that I want to do).
When user select a node on treeview a click on Edit button. Code for click event is:
protected void Edit_Click(object sender, EventArgs e) { if ((DestinationTree.SelectedNode != null) && (DestinationTree.SelectedNode.Depth > 0)) { BaseControl baseControl = new BaseControl(); UpdatePanelRight.ContentTemplateContainer.Controls.Clear(); switch (DestinationTree.SelectedNode.Depth) { case 1: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control1.ascx"); break; case 2: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control2.ascx"); break; case 3: baseControl = (BaseControl)LoadControl("~/DynamicControls/Control3.ascx"); break; } UpdatePanelRight.ContentTemplateContainer.Controls.Add(baseControl); } }
Depending on node selected depth is going to load a custom control dynamically. It works, but when the user select another node on treeview, the original label is reloaded on right column.
I load the content of some User Controls into my page with the use of jQuery. So I have this function that extracts the content from my User Control, and it works like a charm.
public string GetObjectHtml(string pathToControl) { // Create instance of the page control Page page = new Page(); // Create instance of the user control UserControl userControl = (UserControl)page.LoadControl(pathToControl); //Disabled ViewState- If required userControl.EnableViewState = false; //Form control is mandatory on page control to process User Controls HtmlForm form = new HtmlForm(); //Add user control to the form form.Controls.Add(userControl); //Add form to the page page.Controls.Add(form); //Write the control Html to text writer StringWriter textWriter = new StringWriter(); //execute page on server HttpContext.Current.Server.Execute(page, textWriter, false); // Clean up code and return html string html = CleanHtml(textWriter.ToString()); return html; }
But I would really like to send in some parameters into my User Control when I create it. Is this possible, and how can i do that?
I can see that LoadControl() can take some parameters with object[] parameters but im really not sure on how to use it.
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.
I am trying to dynamically load query form as a user control and build a sql statement based on user selection. I have a dropdownbox for Tablename, FieldName, ConditionalOperators and Value Field. Once the user makes a choice and causes a postback I loose my QueryForm (UserControl) and the selection Changed event never gets fired. I tried reloading the QueryForm on Page Init, still no luck.
For a "dashboard" module I need to dynamically load user controls based on criteria as the user enters the page (role, etc). The problem is that the events are not being fired at all from the controls
As I understand it I need to load the controls in the OnPreInit method of the dashboard page, however I cannot get a reference to the Placeholder control at this point of initialization (i.e. I get a NullReferenceException); trying to load the Placeholder dynamically via Page.FindControl gives me, ironically, a StackOverflowException.
I've tried loading the controls in PreRender and OnInit as well but the events in the controls are not wired up properly and will not fire.
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?
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); }
I am following on my own solution to triggering fancybox from asp.net code-behind as here:
http://forums.asp.net/p/1577730/3966910.aspx
But this time I am stuck because my hidden_link control exists inside a dynamically loaded user control, and I do not know it's id, as the id's change to something like this:
I am using Literal1.Text = "<script>jQuery(document).ready(function() {$("a[id$='hidden_link2']").trigger('click');});</script>"; (which would find an <a> tag ending with hidden_link2) but this only triggers the fancybox for the first user control. How can I inject this script for the required <a> link only? Hope that makes sense.
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); } }
I have a simple user control containing two text boxes which I am adding to placeholder on Button Click event. I am storing the number(count) of clicks in View state and running a loop using count to create all previously added user control. I am also adding IDs to each User control (appending "UC" and count). I have also checked in view source the ids are same each time they are created. I have another button which basically does an post back. I have EnableViewState enabled ="true" in all controlls all the way up to Page Level. My problem is that User Input does not persist on postback. Should this not be happening automatically for me?
Once the template is loaded and cast back to the TabHeader class, it's null. How can I load that control, set the properties, and use it as the template? Or is the only way to go about doing this to create a custom class?
I have ASPX page named ArtifactReporting.aspx where I have 3 linkbuttons. For each button I have 3 different UserControls to be loaded dynamically. So I have written for each click
Now in one of the ASCX page I have a server side button. When I click on the button, the content of the ascx is going off, which is correct, because the page post back is happening and in Page_Load I have not written anything that will load the ASCX page.
how to go about this? I need if I load an usercontrol dynamically, I should be let the users carryout operation that usercontrol.
I'm dynamically loading a user control with a form view inside, when I'm trying to update the form view the user control disappears on the post back and update never happens;
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.
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.
