MVC :: How To Populate A Dropdown Box Based On Selectedvalue In Another Dropdown/combo Box

Oct 22, 2010

how to populate a dropdown list box based on selected value in another.

dropdown list box? Say, for example, the first dropdown is a list of car manufactures. When a user selected a manufacture from that dropdown list, the second dropdown would list would automatically gets populated with all the car models for that manufacture.

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Forms Data Controls :: Gridview Populate Dropdown Based On Another Dropdown?

Mar 4, 2011

I have a gridview where i have two fields. one is product and second is sub category.

I need to do 2 things.

1. I need to populate the two combos from the database. But depending what is selected in dropdown 1 this will determine what needs to be populated in drop down 2?

how can i achieve this?

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Web Forms :: Populate One DropDown According To Selected Value From Another DropDown Without Refreshing Page

Mar 11, 2014

I have seen article in code snippet but i have never used web services so that is complicated .

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Can Populate Second Dropdown With Results From Table Selected In First Dropdown

Dec 9, 2010

I have a dozen tables, and two dropdown lists.The first drop down list shows the table names. The second dropdown list needs to be poulated with the data from the specific table selected in the first dropdown list.I wrote a stored procedure that will query the selected table name choosen in the the first dropdown list. My results though are only showing this...


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JQGrid Inline Editing - Filter Subcategory Dropdown List Based On Another Category Dropdown

Jul 9, 2010

I have a category and a subcategory column in a Jqgrid. I have enabled inline editing, both category and subcategory are dropdownlists columns (edittype:'select'). I need to filter the subcategory list based on the selected category. I wonder how can I acheive this functionlity? I tried the below event but its not working for me

afterEditCell: function(rowid, celname, value, iRow, iCol) {
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Web Forms :: Populating A Dropdown Box With Contents Based On The Selection Of Another Dropdown Box

Sep 16, 2010

I am a complete newcomer to ASP.NET. However in the few weeks I have been playing with it I have got pretty far and have mastered things like stored procedures, gridviews, formviews and templates.I have a dropdown box which is populated from SQLDataSource1

I have a second dropdown box which is populated from SQLDataSource2, but i need the query feeding this to be dependent on what was selected in the first dropdown box. I assumed it would simply be a case of modifying the select statement on SQLDataSource2 using the SelectedIndexChanged event on the first DropDownList to update the second SQL source, but I cannot work out for the life of me how to do it. Pretty much all of the code I have is ASP.

can i do this purely in ASP rather than using VB behind the scenes or do I need to use VB? I am pretty comfortable with but one of the other issues I have is referencing an ASP object from VB... so for instance if I had a text box in ASP, how can I read or change the properties of this object from VB?

FYI I am using Visual Studio 2010 and SQL/Server

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Web Forms :: DropDown Populated From Db Based On Value Of Other Dropdown

Mar 16, 2011

I have dropdown1 that has some items in it.I also have dropdown2 that gets populated from a database based on whatever is selected from dropdown1.Dropdown2 has its first item as "Make Selection" and then appends the data from the db based on what was selected in dropdown1.

Now when I select an item from dropdown1 it puts the correct data in dropdown2 but as soon as I select another item from dropdown1 it appends those values into dropdown2. How can I remove the values from dropdown2 after a new item is selected from dropdown1?

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MVC :: Load Dropdown Based On Selection Of Other Dropdown?

Jan 9, 2011

I am new to MVC, I have a form in which selection of one dropdown should reload another dropdown. On selection of the dropdown, I use a jquery post to get the data and my viewstate is reloaded with new data, but I am not sure how to set the newly loaded viewdata to load the dropdown again.

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VS 2008 - Selectedvalue In Gridview Dropdown

Jan 26, 2010

I have managed to place a dropdown control iniside a gridview control. The dropdown does indeed populate in each row... How is it possible for the system to correctly select the text in the dropdown based on the value of the field which is driven from the database? Is it to do with the selectedvalue?

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AJAX :: Cascading Dropdown Reset SelectedIndex Or Selectedvalue?

Mar 6, 2010

I searched the forum for several days now , but can't find an answer to my problem.

I have 4 Ajax Cascading DropDown named,

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The page is working fine actually but the problem is like the following,</p>

Considering that all dropdown are selected as following :

When i change ddlSubGroup to another one , ddlPageNumbers is populated depending on the number of items divided by 20 ( The datalist is paged by 20 items per time)

then i change the ddlSubGroup(RUBBER PARTS in this example for example to BodyParts , so the dropdown values becomes like :


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Feb 22, 2011

There are two dropdowns in my ASP.NET form. The second dropdown is dependent on the first dropdown - the second onedoes not have the item selected in the first one. My problems is that the selectedValue for the second dropdown is always empty after load event. I tried to set the selectedIndex to be 0 before access selectedValue property in the page load event, but it is still empty. What I want is to get the first item of the second dropdown as the default value.


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ADO.NET :: How To Populate Dropdown Using LINQ

Dec 1, 2010

i am trying to use LINQ to populate a drop-down. This code works fine on my local machine, but I get an error when I try to run it on the live site.

The error occurs on this line: ddTicketMasterRoles.DataBind()

The error message is:



An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.MethodAccessException:


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Populate Dropdown Using Enterprise Library 5.0

Jan 18, 2011

Is there a simple code to populate a dropdown box using Enterprise Library 5.0 DAAB? I've tried this, but it is not working:

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C# - Unable To Populate Any Dropdown Values?

Feb 27, 2011

I've spent a lot of time trying to figure out how to do a drop down for filters. Right now I have two filters as a textbox but I want a dropdown list instead as I would be adding few more filters. This is my index page:

Task List

<% using (Html.BeginForm("Index", "Task"))
<legend>Filters</legend> [code].....

This is the change I made in my Model:

public class FilterViewModel
public PapClientProfile Client { get; set; }
public PapStaff Physician { get; set; }

But I'm not able to populate any dropdown values.

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Populate Dropdown Listbox Using A Web Service?

Nov 15, 2010

how to populate a drop down listbox (dlName) from a web service with last and first name i.e. (LastName, FirstName). My Web Service XML that I am requesting is as follows:

<?xml version="1.0" encoding="utf-16"?>
<FindPartnerContactsAction xmlns:xsi="" xmlns:xsd="">


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Skins Don't Populate Skinid Dropdown VWD2010

Jun 23, 2010

Just upgraded to VWD2010. I created a skin file and put it in App_Themes. I created a skin id for a couple of controls: gridview, dropdown etc. Normally in the properties you can go to skinid and a drop down with the skin id shows up and you can select it. Thats not happening. Also, if I put my skinid in for the skinid property of the component its not displaying the formating at all. For example: Here is what I have for a gridview in my skin file named /App_Themes/Default/


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Web Forms :: Dynamically Populate Dropdown List From Another?

May 26, 2010

i've run into small problem, here's the thing: i've got a dropdown list (ddlist1) that i am populating from a database, that works fine. However, depending on the option selected here, i need to populate another dropdown list (ddlist2). for example, if on ddlist1 i select option 1, on ddlist 2 i should get a list of options related to option 1 from ddlist1. If i select option 2, on ddlist 2 i should get a list of options related to option 2 from ddlist 1. and so forth. this information with which ddlist needs to be filled, comed from another database. o how can i go about this? m not sure yet how to code the second ddlist.

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Aug 25, 2010

I want to populate the cascading Dropdown values without Promttext.

Scenario is .If a single value is retrived from the database then I think no need to populate the promt text. It may populate only that value and call the next function from the inside of it. Can it be possible using web methods.

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Nov 5, 2010

I have an improvised system to enter data, below the gridview. I need to populate one dropdown only with the values which relate to the value selected in the drop down before that. For example. I have a dropdown for Customers and another for ShipTo. I want Shipto dropdown to populate only with the values which relate to the particular Customer selected.


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Web Forms :: Dropdown List Box Populate Depending On Second

Mar 2, 2010

i have 3 dropdown list box 3rd dropdown populate depending on 2nd drop down and 2nd drop down populate depnding on 1st value of drop down in asp .NET C#

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C# - How To Populate Dropdown With A Database Result In Mvc Linq EF

Mar 16, 2011

Here is my Controller:

public class MatchManagerController : Controller
// GET: /MatchManager/
public ActionResult Index()
return View();
public ActionResult CreateMatch()
return View();

Here is my View:

@model MatchGaming.Models.MatchModel
ViewBag.Title = "CreateMatch";
@using (Html.BeginForm()) {

I want my MatchTypeId to be a drop down that populates from my table MatchTypes.

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How To Populate A Date Textbox From A Dropdown List

Nov 17, 2010

I have a dropdown list with the names of the months listed in it. These names are stored as int values but converted to string for display purpose. I also have a RadDatePicker control that will allow the user to select a specific date to overwrite the default date. The default date in the textbox needs to be set to the last day of the month selected (i.e. May 2010 would default to 05/31/2010).

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Web Forms :: How To Use Arrays To Populate Dropdown List

Nov 18, 2010

how do i initaize array in just one line so that dropdown list can be populated easily.

For eg : arr={"1","2","3"} how do i do this for list items in dropdown list.

I know this method:
Dim a(1) As ListItem

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Dropdown List Won't Populate Values From Database?

Oct 4, 2010

I'm stuck with a problem to populate a DropDownList control with values from the database using item field template in read only mode. since I'm new to ASP.NET. Below is the code and the error I'm getting:

'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: 'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value

The code for this is :

<asp:SqlDataSource ID="categoriesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand ="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId)">


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State Management :: Populate Dropdown From Cache

Oct 6, 2010

I wanted to know the best practice for caching data. Say I have some control example a dropdown list which is populated from my db. Now this dropdown is global and used across many pages. I was thinking of not going to database everytime to fetch data for this dropdown and put the result in Cache. And then populate this dropdown from cache. Is this a good practice or if there is another approach. Can I store my datareader in cache and then use it globally. Also could I do this in application start event?

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