Web Forms :: Dynamically Adding An AppearanceEditorPart To EditorZone
Jun 14, 2010
I am creating an application which creates pages dynamically, therefore all controls are also created this way. Initially adding a Editor part to the editorZone loads fine, as follows:
[Code]....
Where am I doing wrong here?
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Nov 18, 2010
I have a website built that uses master page templates. In the master page I have a simple menu in a list. This is not dynamic (yet!).
I am trying to put together some code behind to write a simple css class to one of the menu links if the Request.ServerVariables("URL") is equal to the current page URL
I have no code written because everything complains when I try to come up with something. I was thinking of doing it using a switch function but am I over complicating things?Below is the simple menu with the class I am trying to write to the link:
<div id="nav">
<ul>
<li><a class="selected" href="Default.aspx" title=""></li>
<li><a href="" title="ThisPage.aspx"></li> [code]....
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Jan 27, 2010
I want to dynamically add the value of query string, taking inputs from the database and thus building a link. I want this to work in an ASPX page.
Here is the snippet of what I want to achieve:
<asp:HyperLink NavigateUrl=""></asp:HyperLink>
Here I want to dynamically build the value of NavigatUrl, I tried doing this;
<asp:HyperLink NavigateUrl="Welcome.aspx?q=" + <%= Value From My Code Behind %>></asp:HyperLink>
However, this doesn't seem to work properly.
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Mar 27, 2011
I have a custom webpart which i am adding to webpartzone dynamically.., in the custom webpart am loading a usercontrol which has Gridview in it with data. On the page load it is working fine, when i click the paging button of the gridview , then nothing is visible on the page...
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Dec 20, 2010
I have a web form that insert a City recordinto DB.i need to upload images for each city, beacuse of the relationship between city and image is 1-Many.i want to design a from that user enter city info and below that form be a fileuploadcontrol say fileuploadcontrol1, if user browse the fileuploadcontrol1, another fileuploadcontrol, say fileuploadcontrol1 added to, if user browse fileuploadcontrol1, fileuploadcontrol2 added to from and so on, so user can upload as many as files he want. i want this without postback i mean with AJAX.
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Mar 9, 2011
i am hari,i am working on asp.net 1.1,i want to update meta tag content in page load, htmlmeta isnot working in asp.net 1.1
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Dec 6, 2010
I am trying to add wizard steps dynamically in code-behind but keep getting an exception
"ActiveViewIndex is being set to '0'. It must be smaller than the current number of View controls '0'. For dynamically added views, make sure they are added before or in Page_PreInit event."
I found I have some fundamental error in my building, since I got this error after trying to build the simplest wizard in a new web-site just opened...
[code]....
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May 25, 2010
Is there some way that qury string variables can be added dynamically ? Suppose Page one.aspx?Id=3 redirect me to Two.aspx
Can I add some parameters in Two.aspx before page loads ? I know query string collection is read only and it looks not possible but just asking there may be some way to do this.
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Sep 21, 2010
I have a simple user control which contains a textbox and a dropdownlist. I need to add this control multiple times to my page then save the details to my db, validating each control. When they re-enter my page I need to load the user control for each record in the db populated with the data they entered. They can then edit the data, delete the row or add new rows.
I'm trying to find the cleanest most efficient way to accomplish this. I realise I would need to re-add the user controls after each postback re-populating the data. Would the best way be to add each row to an arraylist or list of type object, save it to the viewstate and re-add the controls with data on postback, or is there another method which would suit?
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Sep 5, 2010
I am new to ASP.NET And I am have THE hardest time understanding how to work with forms in ASP.NET. Here's what I am doing:
Dynamically add User Controls to a PlaceHolder based on some int value (which currently is passed in a HiddenField).Fire an event if the WebControls inside of the User Control change, then handle that event in the Main Page (i.e. save the input to DB)When the user clicks the "Next/Continue" button, the next controls for the next page are loaded. And I guess maybe I just can't seem to get how things work in ASP.NET, because I am really struggling with the general idea of how ASP.NET flows.
Should I be dynamically loading the controls in Page_Init, or Page_Load? Or should I load the controls when the buttonclick event is fired?Do I have to add the axCtrl.OnDataChange += new EventHandler(HandleAxControlDataChange); line on Page_Load? Or should I put this in When I first load the UserControl, I need to initialize some WebControls within the UserContorl. Is there a way to know if I have loaded new user controls into my placeholder? I can't use Page.IsPostback, because after the first page, every page is a postback from the buttonclick.
Here's what I have:
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Here's the markup from my ASPX file...
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Feb 25, 2010
I am working on an application, where a user will enter their primary information (Name, Address, Email, Phone etc), then enter their automobile information (usually a fleet of automobiles).
My web page currently has one row of text boxes (Car Make, Year, Model, VIN, Mileage, License Plate)
Below this is a button called "Add More Cars"
What I am trying to do here is allow the user to add more cars if they have more than one that needs to be registered.
My problem is how do I do this dynamically?
2nd problem, how do I collect the data entered by the user (for all cars), to be able to write them to the database?
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Feb 2, 2010
I am using Wizard control, my requirement is when drop down list selected index change event occurs , based on the selected item I should remove or disable some side bar links. I have seen many posts removing and adding dynamically. But I could able to remove dynamically but I could not able to add dynamically. I am getting Viewstate problem.
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Dec 1, 2010
I am using ASP.NET3.5, I want to Add rows dynamically to a table.I have written this code.This code is working fine if the Page is not having masterPage file. If I use masterpagefile in my ASPX age,controls(textboxes) are displaying at bottom of the page,and the data in textboxes is not retaining after click on Add button.Disaapering the text box values. My .Aspx:
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Feb 6, 2010
I need to set some attributes on user controls that I'm dynamically adding to a page placeholder. Is this possible?
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Jul 21, 2010
I'm trying to add a DataList to a panel and add a chart to the DataList.
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Mar 15, 2010
I have a page where a user can add any number of a specific custom control by clicking a button and delete any of them by checking a "delete" box and clicking the delete button. This custom control has a dropdown, 3 radiobuttons, 2 text boxes and 2 checkboxes. The anomaly occurs when you add at least 2 controls, then delete any of them but the last one.
When each control is rendered the name and id attributes are autoincremented to make them unique however, in the above casewhen the custom control is actually renedered to the page the name attribute has an index that is 1 higher than the id. For example:
here is the name and id of the problem radio button: name = ctl00$ContentPlaceHolder1$PreOpUpdatePanel$PreOpStatcompareinout1$AllInOut but the id = ctl00_ContentPlaceHolder1_PreOpUpdatePanel_PreOpStatcompareinout0_All
Now I am sure that I am doing somethign wrong but I just do not know what. Since the controls are added dynamically I have to recreate them on each postback so that the postback data can repop the fields. However, when the user deletes then the postback event makes me recreate all of them, then I have to remove the controls the user requested to be deleted. At this point the auto generated index is incorrect so the nextpostback will lose the data so I have to manually renumber the control IDs. Now this seems to work on all other controls within my custom control except for the radio buttons.
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Apr 19, 2010
I need to let my user add rows dynamically to a table, and after doing some research, it seems the best way to do this is through a GridView bound to a DataTable. However, I'm really struggling adding dropdownlists to the datatable, and this showing them in the gridview.
Here's the design I want:
ddl1 | ddl2 | ddl3 | ddl4 | ddl5 | ddl6 | ddl7 | textbox
When the user opens the form, he or she will be presented with one row. ddl2 etc will be populated when ddl1 is selected etc etc. When appropriate, the textbox will be enabled allowing the user to enter a comment (this is to report errors, and since users are, at best, not to trust to write the same thing twice, I need to use ddls.
Now comes the question - how do I add a ddl to the datatable? I've tried several ways, but I cannot get them added.
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Jul 21, 2010
I have a usercontrol that uses a callback to update itself. If I add the control to the aspx page everything works fine. However, when i add the control using Page.LoadControl and Control.Add on a Placeholder i get the following error: "The target 'ctl00$ContentPlaceHolder1$ctl00' for the callback could not be found or did not implement ICallbackEventHandler". I tryed assigning the ID of the control also which failed with the same error. I am using asp.net 2.0.
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Jan 13, 2010
I've been searching for hours trying to figure this out. I understand that somehow I need to recreate the control in page_load. I think seeing the code will let us better understand what I'm trying to do.
[Code]....
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Mar 13, 2010
I'm looking to add controls dynamically to a table across multiple functions. I'm trying to convert this from a C# app to a web app using asp.net, though this is my first time using asp.net with no web development background. I read the creating tables dynamically in the FAQ but I'm still not sure how to do this.
When pressing the submit button on my form, it will create a table in a place holder. Eventually I would like it to generate urls based on the users input and do this in a function other then the one I created my table in.
In my C# app I was able to add text to a listbox using: lstOutput.Items.Add("Text"); across multiple functions but I'm having trouble doing this with a table.
I understand that my table is a local variable in the submitButton_Click function, but how do I make it global to add rows, cells and controls to it in other functions?
My current code which doesnt work:
[Code]....
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May 24, 2010
Adding user controls dynamically to aspx page
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May 18, 2010
i am kind of new in the .net world. I would like to know how you can add a link column with an image to a datagriid.
P.S. i am using Visual studio 2005.
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Mar 15, 2011
I've read a few articles on this, but I keep doing something wrong, and I'm not sure what. I took out all of my customization and just want to add a single header row to the very top of my GridView... Can someone show me how I'm screwing up? This is the code I'm trying to use...
[Code]....
I have tried a few different ways of referring to the GridView table... e.row.parent, gv1.controls[0], etc, but nothing seems to work.
I don't get any errors, just nothing ever shows up when the GridView is rendered. I can't find the code using Firebug to look at the HTML either... what am I doing wrong?
(have also tried using "0" for the rowIndex when creating the new GridViewRow)
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Oct 20, 2010
Is it possible to add RequiredFieldValidator in DetailsView dynamically (programatically)?
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Nov 11, 2010
is there a way I can add a column dynamically from code behind to the gridview in my page?
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