MVC :: Get Selected Items From Dynamically Generated Listboxes?
Feb 22, 2011
I am developing an mvc 2 application.In my form i have a listbox. Based on selecting the items in the listbox a vertical tab is created.the tabs in the vertical tabs are created corresponding to each item selected in the listbox.after the creation of the vetical tabs each vertical tab will be containing a listbox.here the user can select the list items.now my problem is that i want to know which all items in each listbox in each tab is been selected .some code:
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Sep 21, 2010
I have the following Menu:
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It's being loaded from a dynamically generated XmlDataSource Item:
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The XML of which looks something like this:
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I can't seem to figure out a way to make the width of the drop menus consistent (they're following the padding conventions I have outlined, I get that). What I'm interested in is a way to make the DynamicItemsStyle width on all items the width of the widest one.
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Aug 4, 2010
I have two databound listboxes. I am able to move items between them using add and remove buttons using for loops. However I have no idea how to commit the items back to the db when the user finally clicks on the Save button on the form.
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May 17, 2010
I have two listboxes on one panel. Box on the left has names from the database, there are two buttons. High light a name and click button1 and the name move from listbox1 to listbox2. How do you do that?
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Feb 4, 2011
I am having a lot of trouble with a seemingly simple thing. In an ASP.NET webform I have two ListBoxes, with Add and Remove buttons in between. The user can select items in one ListBox and using the buttons, swap them around. I do this on the clientside using javascript. I then also have a SAVE button, which I want to process on the server side when the user is happy with their list.
Problems : First I was getting the following problem when I clicked SAVE :
Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. I read that one of the methods to get around this was to put my ListBoxes into an UpdatePanel, which I did, and I am getting further.
However, now the event handler for the button's Click event is not being run if the user has used the clientside javascript to alter the contents of the Listboxes. If the user has not altered the contents of the listboxes, the handler does execute.
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Dec 13, 2010
I have a table in SQL Server which gives me a list of products (PRODUCT), and the products category (CAT). Right now I am putting all the products in the same ListBox:
foreach (DataRow row in ds.Tables["ProductsTbl"].Rows)
{
string str = string.Format("{0}", row["PRODUCT"]);
ListBox1.Items.Add(new ListItem(str));
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But I need to create as many listboxes as there are categories, and distribute those products according to the category. Categories might be added or removed so I need to create them dynamically. So lets say the table has 5 products in category 1, 4 products in category 2 and 7 products in category 3, I would need 3 Listboxes created. The first with 5 items, the second with 4 and the last one with 7 items
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Mar 10, 2011
I have the following code which simply gets data from a table and populates the questions_lb listbox with items. I have a button on the page, which when clicked, should write (on submit) the selected state of each of the items. The code below writes the text values of each of the items fine however it always writes the li.Selected as False even though i have selected items from the list. Note that you can select Multiple items from the list. Does anyone have a clue why its not writing 'True' for an item that is selected on submit?
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Feb 11, 2010
I create a gridview dynamically to fit the contents of a datatable...This form will have other dataatbles thrown at it but for the moment I am only working on one to work out the details of the process.I will post all my code below...the problem is this. The code successfully geenrates the gridview the way I want however...whenever I select a row all the cells including the header cells dissapears
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May 7, 2015
below is the code I have but I want to change the ddl.Deal(dropdownlist) to cbl.Deal(checkboxlist).. How can I loop throught each items if checked. and if all items are checked. to filter my data and show in gridview..
protected void btn_Click(object sender, EventArgs e)
{
myAPI.myWeb myAPI = new myAPI.myWeb();
myAPI.SearchParameters sSearchParameters = new myAPI.SearchParameters();
[Code].....
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May 7, 2015
Two ListBox Items Compare and Distinct Values Insert Into Third ListBox
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May 17, 2010
I'm having trouble getting selected items in a listbox to be seen as selected. On my aspx page there's a listbox and a button:
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But if I change my condition to Not selected, the string does build, with every item in the list. So the Sub is reached, the items and their text and values are seen, but user selection of items doesn't work. What am I missing?
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Jan 25, 2011
I have a series of div where the id is tagged with the conventional:
<div id="result<%=order.ID %>">
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fromInput.split(",")[1]
So how do i get that element concatenated with the static part of the DIV id?
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Jun 30, 2010
I have a dropdownlist on my page which has autopostback set to true. On postback I populate a runat server div with a bunch of other DropDownLists. I then have a button which does another postback to save the selections. Because the second set of dropdownlists are dynamically generated I cannot for the life of me figure out how to get their selected values?
1st DropDownList
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Then when I try get the dropdownlists using a foreach on the div that I added the control to it does not work. They are populating fine, its just on the button click. I have tried EnableViewState = true on the dropdownlists and my code is correct because if I code them into the aspx then it works, its something to do with the state.
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May 11, 2010
i have imagebutton which is generated dynamically. say i have 20images, if user clicks i need to get the name of the image.
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Oct 31, 2010
I have an ASP.NET web forms site with a rather large menu. The HTML for the menu is dynamically generated via a method in the C# as a string. I.e., what is being returned is something like this:
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Except it is a lot bigger, and the lists are nested up to 4 deep.
This is written to the page via a code block.
However, instead of returning a flat string from the method I would like to return it as formatted HTML, so when rendered it looks like this:
<ul>
<li>
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Jul 9, 2010
I'm displaying a table based on query results, and each record has a dynamically generated dropdownlist and submit button (and other controls, but this is simplified). That part works fine, but how do I reference the controls in a function? Here is the code I've tried. Create the controls:
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Reference the control values (hopefully):
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The function SubmitAction_Click fires when I click the Post button, so that part works. I just can't figure out how to reference the selected value of the dropdownlist. You can see that I'm explicitly giving the DDL a unique ID (DS_RecordID). I'm guessing I have to use FindControl to reference it, but I don't know how to format the code.
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Jul 28, 2010
I'm coding an ASP.NET page, with VB code behind. When the user clicks a button on the page, I send them an email with information and instructions. Rather than sending a plain text email, I send a nice, pretty, HTML-formatted one. Right now, I'm doing this in a way that I KNOW will be difficult to maintain. That is, I'm straight up writing out all of the html. i.e.
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Feb 11, 2010
I have implemented a user control with dropdown lists and textboxes where user may choose to add more of the same user control dynamically then submit the values within all usercontrols at the same time. They way I added usercontrols dynamically is whenever user clicks "add more" button, it increases the value of "userControlAmount" in session by 1, reloads the page and during next page_load event, within an updatepanel it creates usercontrols on the fly.
However whenever more is added since all usercontrols are generated again according to the latest user control counter, the values within the dropdownlists and textboxes are getting reseted.
I can hold all values in a viewstate/session however beyond the time/effort it will take, it doesn't sounds very "professional" to me. I was wondering if there is a more efficient way of doing this.
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Jan 4, 2010
Is there a way to use a generated file as a configSource for a web.config section?
In web.config, I tried a simple:
<webParts configSource="webpartsConfig.aspx" />
where webpartsConfig.aspx just spits out XML when accessed normally, but not as a configSource. (The literal source code is included as-is, giving an error.)
Motivation for this solution: I have different configuration variables locally and online, and I don't want to juggle multiple config files.
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Jul 5, 2010
so I have drop down list connected to a datasource, and I need to change 2 or 3 of the values before they are displayed and I'm just having trouble figuring out what to do. I'm assuming I setup some kind of loop to check the values, but thats all I can figure.
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Jan 1, 2011
My goal is to take some form inputs and prompt the user to download a summary of everything once a certain button is clicked. I have no need for the file once it is downloaded and so I'd like to have a solution where the data is streamed directly to the user. My current solution doesn't even prompt the user for a download. Can anyone point out what I'm doing wrong?
I've got it wrapped as a webmethod and so I needed to add a definition of the _Default page class so I could access certain things.
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this wasn't mentioned earlier but the webmethod is being called by an AJAX request!
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Aug 4, 2010
I'm new to CSS. I need to display a number (generated dynamically through ASP.NET MVC action method) on to a Square (normal image , whose face needs to be replaced with the dynamic number ).
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Feb 24, 2010
I am using a Website application,In that website i have created dropdownlist and textboxes as dynamically... That dropdown list contains fees list... I select one type of fees in Drop downlist and enter some amount in textbox.. then i select again one type of fees in Dropdownlist and enter some amount in textbox... and finally i select a text named as Total amount in Dropdownlist it have to automatically generate the total value of the all the textboxes(beforeCreated) in the end of the textbox...
How shall i get the total value at end of the textbox..
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May 27, 2010
I have a form that has dynamically generated textboxes using javascript.
My question is how can I read the values of these dynamically generated textboxes since I dont see any HTML in the page source for these textboxes even though they appear in the page.
I tried to read using
var str = document.getElementById('txtHello').value;
It always returns null.
txtHello is the Id which I have given to the textbox when I generated it dynamically using javascript.
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May 21, 2010
I am generating a button dynamically at runtime and in event button click I am generating a TextBox dynamically at the runtime.
My question is I should be able to generate TextBox on every click. Suppose say, If I click three times then there should be three textboxes generated.
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