Check that the value of Title matches exactly one of the option values. This is CSS issues. There's also a Submit Button at the end of the Form and when the Button is clicked, the Form is submitted. The select list is ideal for displaying . It is intended to help developers who are working to improve their proficiency with some key technologies. This "little bug" is absolute insanity! Stack Overflow for Teams is moving to its own domain! Cardiologist . To avoid this, just use another name when naming the property holding the list of items." I don't know why @Html.DropDownListFor in Bootstrap 4 doest work. So, in your case, you should have a SelectedOrderId as part of your model or something like that, in order to use it in this way: Aside from using ViewBag, that is not wrong but there are better ways (put that information in the ViewModel instead), there is a "little bug" (or an unspected behavior) when your ViewBag property, where you are holding the SelectList, is the same name of the property where you put the selected value. How can I find a reference pitch when I practice singing a song by ear? When using DropDownListFor, the first parameter is the property where your selected value is stored once you submit the form. Method 1: Using the value property: The value of the selected element can be found by using the value property on the selected element that defines the list. It displays the initial value of the list. The culprit was ViewBag.Title matching my model.Title. Once above dropdown render into html browser that will be like as shown below. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. SelectList selected value not carried over to DropDownList, MVC 4 @Html.DropDownListFor() not passing model values to dropdown, Using selected value in @Html.DropDownListFor, Using AngularJS with MVC SelectList has no value initially selected, How to populate 2 DropDownListFor for Strongly Typed model, Razor Html.DropDownListFor automatically set the selected value, Design review request for 200amp meter upgrade. Connect and share knowledge within a single location that is structured and easy to search. in controller: Important note: the name of dropdownlist -"v"- must be different from the name of viewbag -"VCenter"-, if same names it didn't work. How can I express the concept of a "one-off"? You probably do not have a 0 value in your source for Code property, so the HTML Helper will select the first element to pass the real selectedValue to this control. The consent submitted will only be used for data processing originating from this website. How do we know 'is' is a verb in "Kolkata is a big city"? Set value of the Title property in the controller: Another possible reason (and the correct one, based on the comments below) is that ViewData["Title"] is overridden by another value. It's surprising how many subtle, but frustrating traps one can fall into when building sites with ASP.NET MVC. Ok, at the end it was eventually the ViewBag.Title.. so mad right now. Step 3: Enter the controller name as SampleController and modify the Index () with the code below: public ActionResult Index () {. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. How can I make a conversion to an integer round up instead of down? The HtmlHelper class helps us by providing two methods namely DropDownList () and DropDownListFor () to create the <select> element in razor view. then I tried converting the array to SelectListItem ( to no avail). Browser: [ IE | Edge ] Kendo version: 2019.2.514 By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Is nested SelectMany supported in Linq to Entities? Server-side, you're not looking at the value of the 2nd DropDownList , but at the value of your hidden input.Make sure the hidden value is always sync with the 2nd DDL when you post your form. DropDownList Selected Index Changed Event: In above View sample, the dropdown list has an on change event and that will hit JavaScript method SelectedIndexChanged (). I've been having a look online and have seen that it can be achieved by using the fourth parameter so like the below: But for some reason United Kingdom remains selected but I want "Please select a country" to be selected. @html.dropdownlistfor (m => m.state, // store selected value in model.state // this argument needs some explanation - here we take a distionary // and turn it into an instance of selectlist, see blog post for more details new selectlist (model.states, "key", "value"), // text for the first 'default' option "- please select your state -", Try this: Thanks for contributing an answer to Stack Overflow! Step 2: Select MVC Controller- Empty. A potentially dangerous Request.Form value was detected from the client. what works for me according to previous solution: To subscribe to this RSS feed, copy and paste this URL into your RSS reader. In my project, Html.DropdownList could not display its selected value.It displays the initial value of the list.My controller and view codes are given below: It works fine.but I have to add the class="form-control".What should be solution? Not the answer you're looking for? Asking for help, clarification, or responding to other answers. If your, I debug the program again.I have found the selectList with selected value 51 which is a valid value.But in the view page it could not display the selected value. the val() is not working here. I did run into an issue with the name I had for my dropdown list, it was almost the same as the model filed I was saving it in. Make sure that you have trim the selected value before you assigning. Change name of the Title property to any other and everything should work. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. We and our partners use cookies to Store and/or access information on a device. May be this is a duplicate to that post. Manage Settings UPDATE: 505), Speeding software innovation with low-code/no-code tools, Mobile app infrastructure being decommissioned, A potentially dangerous Request.Form value was detected from the client, HTML.DropDownList does not respect pre-selected value, Html.DropDownList Selected Value Not Working (Using Constructor with IEnumerable), The ViewData item that has the key 'XXX' is of type 'System.Int32' but must be of type 'IEnumerable', set value of dropdownlist based on value from database in asp.net mvc5, WebApplication.Models.Category instead of value, Quickly find the cardinality of an elliptic curve. What can we make barrels from if not wood or metal? Comobox selected value not correctly getting in WPF? Right click the browser window and select view source. (Strongly Typed,Chances for error minimum) Any model changes will be reflected in the binding, This method for binding data also possible. I have spent 30 minutes wondering why my Title dropdown wasn't being Selected. [Possible duplicate][1] [1]: Thank you for your update. We saw this previously when we set the selected value to Comedy. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Server Side Getting the selected dropdownlist value in server side while user submit the form. The HTML page renders a select element similar to the simple ASP.NET MVC test page. You probably do not have a 0 value in your source for Code property, so the HTML Helper will select the first element to pass the real selectedValue to this control. rev2022.11.15.43034. Googled and try all published solutions. When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. Hiding GroupBoxes depending on selected index of combo box, Pixelated character deforming when moved. What exactly isn't working? Is it legal for Blizzard to completely shut down Overwatch 1 in order to replace it with Overwatch 2? :(, I found : in my html. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Thus, the DropDownList is bounded again, before . Not the answer you're looking for? ASP.NET ASP.NET MVC. If your going to use DropDownListForyou need to set the selected value in the model first. currently it is being added as the option label. Why do paratroopers not get sucked out of their aircraft when the bay door opens. DropDownList is not editable, it means the user cannot enter own value and limited to choose an item from the selection. It displays the label "--Select--" not the selected value. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. :|, Html.Dropdownlist selected value not working, Tips and tricks for succeeding as a developer emigrating to Japan (Ep. Thanks, Srinivas. Can I connect a capacitor to a power source directly? Sensitivity analysis for specific sets of constraints on DoCplex. Which one of these transformer RMS equations is correct? - user3559349 Nov 13, 2014 at 9:52 Yes the value in Title matches with the ones in the list Rigorously prove the period of small oscillations by directly integrating. I tried crazy implementations to get my dropdownlist to work and this was the simple solution, Holy crap I would have wasted a whole day if it wasn't for this answer. If your going to use DropDownListFor you need to set the selected value in the model first. What city/town layout would best be suited for combating isolation/atomization? If I add the option label. What does your debugger tell you? A ViewModel class allows you to strongly name things without casting, like this: It's a subtle looking change but everything is compile time checked. Are no values displayed, or is it just that it doesn't initially select the element you expected? night, to a poet crossword; auburn meadows west lafayette; install tensorflow gpu windows; sperry rain boots women's; dropdownlistfor selected value not working mvcflo-coat galvanised steel. The list loads successfully but the Selected Value is Not selected. I never knew this was an issue before today - thank you! and now It works fine. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To learn more, see our tips on writing great answers. I have changed the ViewBag name from ViewBag.MODULE_ID to ViewBag.ModuleList. Thank you! here is the codes; but the first item "Honda" is not selected in default., the . Is it possible for researchers to work in two universities periodically? -KendoUI, then I tried converting the array to SelectListItem ( to no avail). Arrgh! How can I set the selected value of a Html.DropDownListFor? The DropDownListFor ALWAYS overrides your manual selection. Connect and share knowledge within a single location that is structured and easy to search. But nothing is working. That means, it comes to the Page Load again on selection of any Option and calls the BindDropDownList (). Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Yes the value in Title matches with the ones in the list. When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. But if I wrote :@Html.DropDownList("MODULE_ID", String.Empty) .It displays the selected value. Stack Overflow for Teams is moving to its own domain! This property returns a string representing the value attribute of the <option> element in the list. not the selected one. Set value of the Title property in the controller: Another possible reason (and the correct one, based on the comments below) is that ViewData["Title"] is overridden by another value. It's only when I reset my form that the LookUp does its work and puts the value that I searched for in the dropdown as default. How to set the selected value from a dropdownlist in a gridview? "Id"), DropDownListFor sometimes does not behave properly. dropdownlist selected value is not changing? Here " DropDownList " function will render it as <select> with <options> tags and "ddlUsers" is used to set id and name for dropdownlist and "Model.usersinfo" will provide all possible options for dropdown and "2" will set default selected value for dropdownlist. Find centralized, trusted content and collaborate around the technologies you use most. If no compatible value is found nothing is set as the default. Flynn, your comment should actually be an answer. -knockoutJS C# Is it possible to model bind multiple options? 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By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I use Enum dictionary for my list, that's why there is "key", "value" pair. Environment. All rights reserved. How to Fix this problem? This is because SelectListItem is a reference type so when you change the Selected property to true, all dropdowns which use that SelectListItem will reflect this. rev2022.11.15.43034. Renamed my model property to something else and it worked. kendo dropdownlist bind datasource. How can I add a class attribute to an HTML element generated by MVC's HTML Helpers? NHibernate MappingException: persistent class TodoLog not found. 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Do commoners have the same per long rest healing factors? @Ruchan, Is it any chance you're setting the title of the page using, I thought the same and changed the model property name and tried, but still the same. Just wasted 2 hours of my life because of this. (Typing mistake). Just in case you're wondering, the datasource is an AJAX page, that gets dynamically loaded using the SelectWoo/Select2 control. To avoid this, just use another name when naming the property holding the list of items. Continue with Recommended Cookies. Binding DropDownListFor from enum, database and some hard coded values in our previous article MVC dropdown binding best ways.In this article we will try to bind child Dropdown on selection change of parent Dropdown, say Country to State or Sate to City, by using jQuery which will call an action in controller and return JSON for selected id, and with the help of jQuery append values to child . Jquery autocomplete on dropdownlist. Bootstrap toggle chechkbox is not working when using it with html helper chechkboxfor? I am new to MVC. The Html.DropDownList will look in the ViewData (ViewBag) for an entry with key "ManagerId" that contains a SelectList (an IEnumerable<SelectListItem> would work as well) It will generate an html select element with a name attribute value of "ManagerId". No need to set default value from HTML side. What do we mean when we say that black holes aren't made of anything? Step 1: Just right-click on the Controllers folder and add a New Scaffolded item. dropdownlistfor selected value not working mvc. It may conflicts with the name of the dropdownlist. The HTML markup for the select list is essentially identical. What would Betelgeuse look like from Earth if it was at the edge of the Solar System. What is the best way to give a C# auto-property an initial value? While rendering the DropDownList, MVC looks for a ViewData (and hence ViewBag) variable whose name is same as the DropDownLIst being rendered. Can I connect a capacitor to a power source directly? Sensitivity analysis for specific sets of constraints on DoCplex. Html.Helper class provides two extension method for working with DropDownList. Renamed my model property to something else and it worked. How did knights who required glasses to see survive on the battlefield? Cannot pass Model from View To Controller on FormSubmit, Foolproof required value based on Dropdown value, A potentially dangerous Request.Form value was detected from the client. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. document.demoForm.submit () method will post this form (demoForm is the name of current form), and that will hit Post type Action Employee (Employee model) in the controller. "Id"), DropDownListFor sometimes does not behave properly. Creating forms for the web is one of them. In my mvc razor view, I have a @Html.DropDownList as below, all I wanted is when the razor is loaded, the first item "Honda" is selected in default, so user will not need to click to select it again, and I don't want to add "Please select a product", that is why I keep that option is blank. How to get push/remote notification when app in foreground in xamarin.ios native app? DropDownList and CombBox should not reset their values. On a side note, you should consider using a ViewModel class and doing away with both the magic string "MODULE_ID" and the ViewBag magic property. Is the portrayal of people of color in Enola Holmes movies historically accurate? Elemental Novel where boy discovers he can talk to the 4 different elements. Trying to populate a dropdownlist with selected value as a specific value. It's common to spend hours on something trivial, such as displaying a selected value in a DropDownList on postback, or getting that selected value in a controller. Is it bad to finish your talk early at conferences? Anyways the work arround is, if your Dropdown input box has CSS Padding: #px, # px; element then disable it. What do we mean when we say that black holes aren't made of anything? 505), Speeding software innovation with low-code/no-code tools, Mobile app infrastructure being decommissioned, Preselect Items in Multiselect-Listbox (MVC3 Razor), MVC DropDownListFor selected item not binding due to property name. I know this is not really an answer to the question, but I was looking for a way to initialize the DropDownList from a list on the fly in the view when I kept stumbling upon this post. Arrgh! If your new SelectList (., 47) is working properly, when you view the page source in your browser it should have an <option value="47" selected="selected">My Module</option>. I've updated my code as there was a slight change in functionality however still seem to be encountering this problem. new SelectList (Model, "Code", "Name", 0) you are saying: the Source ( Model) and Key ( "Code") the Text ( "Name") and the selected value 0. Why am I getting some extra, weird characters when making a file from grep output? Your controller has the wrong number of parentheses: It has one opening parenthesis and two closing parentheses. Quickly find the cardinality of an elliptic curve. What laws would prevent the creation of an international telemedicine service? Are there computable functions which can't be expressed in Lean? In your action (or model builder): model.Location_Model = "my selected value"; Then your view: @Html.DropDownListFor(m => m.Location_Model, new SelectList(emo, "Value", "Text")) mxmissile10902 Source: stackoverflow.com How to stop a hexcrawl from becoming repetitive? Receive the value with the help Javascript or Jquery. MVC DropDownList selected value not working c# asp.net-mvc asp.net-mvc-5 html.dropdownlistfor selectlist 23,328 Solution 1 Set value of the Title property in the controller: ViewBag.TitleList = new SelectList (new string [] { "Mr", "Miss", "Ms", "Mrs" }); viewModel.Title = "Miss"; // Miss will be selected by default Gurobi - Python: is there a way to express "OR" in a constraint? For edit forms, when the current value is known, the select list can display the current value. You are adding the form-control class in the wrong parameter. You would need to add another input that is hidden .Whenever you change the value of your 1st DropDownList , you'd change the value of your 2nd DropDownList AND the value of the hidden input. I have changed the ViewBag name from ViewBag.MODULE_ID to ViewBag.ModuleList. Also shown is how the contents of one dropdown list can . What do we mean when we say that black holes aren't made of anything? Find centralized, trusted content and collaborate around the technologies you use most. Stack Overflow for Teams is moving to its own domain! If you were to remove the following: Selected = (role.RoleID == Model.RoleID) Your code for Roles would continue to work. That's only because no value is being set as selected then. User-1778900732 posted @Html.DropDownListFor(model => model.ParkNationalCemetery, new SelectList (ViewBag.YesNo, "Value", "Text", "Selected")) This seems to work just fine for me. Thanks for contributing an answer to Stack Overflow! dandansoy instrumental; and now It works fine. - fyasir Jun 2, 2014 at 18:38 That's only because no value is being set as selected then. Try this: -MVC .net Developer If you know what will be in the view, you can also set the default value from Controller as well rather then set up it into the view/cshtml file.