The DropDownListFor helper method will use the value of SelectedFormId property and select the option which has the same value attribute value from the list of options of that SELECT element. 503), Mobile app infrastructure being decommissioned, 2022 Moderator Election Q&A Question Collection, ASP.NET MVC DropDownListFor not selecting value from model, DropDownListFor not respecting Selected property of SelectList, ASP.NET MVC - drop down list selection - partial views and model binding. I'm using the DropDownListFor helper method inside of an edit page and I'm not having any luck getting it to select the value that I specify. 503), Mobile app infrastructure being decommissioned, 2022 Moderator Election Q&A Question Collection. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Friday, March 28, 2014 8:13 AM 0 Sign in to vote User1813321808 posted Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. I know this is an old question but I have been having the same issue in 2020. I tried searching and didn't find anything that fixed my problem. ", Movie about scientist trying to find evidence of soul. Is it possible for a gas fired boiler to consume more energy when heating intermitently versus having heating at all times? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. 503), Mobile app infrastructure being decommissioned, 2022 Moderator Election Q&A Question Collection, DropDownListFor in EditorTemplate not selecting value, Html.DropDownList Selected Value Not Working (Using Constructor with IEnumerable
), DropDownListFor not respecting Selected property of SelectList, DropDownListFor selected value does not work with property in list, Selected value not set on DropDownListFor() in MVC4, modelBinding works when using model but not with viewmodel, DropDownListFor not setting selected value with different names, how to show the selected value in html.dropdownlistfor box when open the edit view, dropdownlist not selecting the value ASP.NET MVC 4, A potentially dangerous Request.Form value was detected from the client, ASP.NET MVC DropDownListFor with Nested Properties in Model, How to use MVC Html Helper .DropDownListFor<> with an Enum, DropDownListFor not populating correct value. But if I use the dropdown menu to select "Jun 2017", the Report_Performance controller functions is called and it executes the GetStats() method. Can you say that you reject the null at the 95% level? I also cannot edit or create products because the value of the name and id attributes of the html select element. Replace first 7 lines of one file with content of another file. Find centralized, trusted content and collaborate around the technologies you use most. ASP.NET MVC DropDownListFor not selecting value from model, http://web.archive.org/web/20090628135923/http://blog.benhartonline.com/post/2008/11/24/ASPNET-MVC-SelectList-selectedValue-Gotcha.aspx, Stop requiring only one assertion per unit test: Multiple assertions are fine, Going from engineer to entrepreneur takes more than just good code (Ep. Or to say, it does not set the selected="selected" attribute at the Tennis option tag (To be sure, I also inserted a breakpoint in the view, to investigate the ViewBag.categoryList property but it gives the same result as in the controller): The first parameter is the Lambda expression for specifying the property that will hold the Selected Value of the DropDownList when the Form is submitted. Did the words "come" and "home" historically rhyme? 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. Let me give you an example: You can either change the code as per suggestion by @Erik or you can add a. I understand what you're saying. Has anyone found a was to work around #2 and make it select correctly without some hacky clients side script? When I am using @HTML.DropDownListFor, it is showing me the list but, it is not showing the selected value. To learn more, see our tips on writing great answers. To everyone googling, make sure you don't name the ViewBag property the same as the model property! Thanks for replying. But why does it not work when putting the SelectList in the ViewBag -- when it works perfectly when adding it to a model, and doing this inside the view: The reason why this doesn't work is because of a limitation of the DropDownListFor helper: it is able to infer the selected value using the lambda expression passed as first argument only if this lambda expression is a simple property access expression. How can you prove that a certain file was downloaded from a certain website? how to verify the setting of linux ntp client? Does protein consumption need to be interspersed throughout the day to be useful for muscle building? @Html.DropDownListFor(model => item.CategoryID, (IEnumerable<SelectListItem>)ViewData["categories"], new { @id = "category", DataValueField = item.CategoryID, DataTextField = item.CategoryName, SelectedValue = item.CategoryName }) but when retrieving data from the table and bind to this table, this dropdown list not showing the correct value How can I write this using fewer variables? However I changed my code to do the same and it did not resolve the problem. Client Side Getting the selected dropdownlist value without form submission to server. Asking for help, clarification, or responding to other answers. Confirm that Categories and Suppliers are shown in drop downs and the items are selected properly: (4) See the codes of Edit action method and the Edit.cshtml. After I changed the name of the anonymous property in the ViewData the DropDownList helper worked as expected. Is it possible for a gas fired boiler to consume more energy when heating intermitently versus having heating at all times? Thanks for contributing an answer to Stack Overflow! Thank you for your response. How does reproducing other labs' results work? Excellent answer, thank you for both explaining the problem and giving an example of how to fix it. MVC DropDownList SelectedValue not displaying correctly, Stop requiring only one assertion per unit test: Multiple assertions are fine, Going from engineer to entrepreneur takes more than just good code (Ep. MIT, Apache, GNU, etc.) By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. (3) Execute the application and show the Edit view. The value is set to "category" but has to be something like category.name is my believe. Please don't downvote the code without logic. I added a detailed example of how it could be done. I'm running asp.net 4 mvc and I've created a DropDownList of dates that defaults to the first entry in the list. Can humans hear Hilbert transform in audio? Open the StartMusicStore.sln file with Visual Web Developer 2010 Express ("Visual Web Developer" or "VWD" for short) or Visual Studio 2010. Will Nondetection prevent an Alarm spell from triggering? a simple fix is just to add .ToList() After dooing a projection (.Select()) ;). Is this homebrew Nystul's Magic Mask spell balanced? As dropdown list selection will be changed, Form Post method will be called and that is second Action Employee () mentioned in above sample. Why are taxiway and runway centerline lights off center? What a simple solution. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I had the same problem. This is the most simple and short way of doing that. The reason is you are using ViewBag's name the same as the model's property. #2 here is my issue. I hope it makes sense, if there's any issue, please comment back. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. rev2022.11.7.43013. Allow Line Breaking Without Affecting Kerning. What does it mean 'Infinite dimensional normed spaces'? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Your code has some conceptual issues: . The problem is that I've already tried this and it's still not working. If there's a match, the selected value of the SelectList is overridden. "value", "text", Model.Section[b].State this section the above syntax adds the selected attribute to the value loaded from the Controller. Will it have a bad influence on getting a student visa? Example ViewBag.InsigniaList = new SelectList (db.MtInsignia.AsEnumerable (), "id", "description", 1); View What is the use of NTP server when devices have accurate time? Traditional English pronunciation of "dives"? After researching for an hour, I found the problem that is causing the selected to not get set to DropDownListFor. The easiest would be to have some javascript that looks at the URL and extracts the id query parameter, then selects the item in the dropdown box that corresponds with the id. A workaround that solves this issue is this: I tried not to ToString on RequiredShippingTypeId at the end, which gives me the same behavior as before: No item selected. How does DNS work when it comes to addresses after slash? I was just hit by this limitation and figured out a simple workaround. There is no reason for downvote. Space - falling faster than light? For instance, your passing the result of the GetStats() method to your View as a model, and you haven't shown what that is. I think you are setting the @ViewBag.SelectedTYPE at the wrong place, please refer to below code: @Html.DropDownListFor(model => model.EmployeeId, new SelectList(ViewBag.TYPE, "EmployeeId", "EmpCode",10)) The default selected value should be in the SelectList(): Which in your case: Which finite projective planes can have a symmetric incidence matrix? so in your postback model you will have a list of GroupPermission but only the RoleID will have a value. This seems to also apply if you are using some other object/alias to get the value from e.g. I'm just not sure what I'm missing. While not addressing this question - it may help future googlers if they followed my thought path: I wanted a multiple select and this attribute hack on DropDownListFor wasn't auto selecting, instead I should have been using ListBoxFor which made everything work, I also having similar issue and I solve it by as follows, This essential tells the browser to navigate to a new page, which is an HttpGet operation. Let's say your model class that is being returned by GetStats method in the Report_Performance action is MyStats which contains a string property named SelectedDateString (you need to add this property to your view model class). if you need the rest of the values, you should just do a database query. Not the answer you're looking for? Pre-populating the model solved me, well over an hour googling though! Movie about scientist trying to find evidence of soul. 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 does reproducing other labs' results work? The DropDownList is generated using the Html.DropDownListFor Html Helper method. If BirthCountry was selected to say Canada, and ResidenceCountry had no value, the 2nd dropdown would be defaulted to Canada and not "" as explicitly specified. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Stop requiring only one assertion per unit test: Multiple assertions are fine, Going from engineer to entrepreneur takes more than just good code (Ep. The view generates the html dropdown list but does not select the "Tennis" value. @Html.DropDownListFor( m => m.CountryId, // Specifies where to store selected country Id // It needs to be null for the default selection to work! How does DNS work when it comes to addresses after slash? Euler integration of the three-body problem. Which was the first Star Wars book/comic book/cartoon/tv series/movie not to involve the Skywalkers? Thanks for contributing an answer to Stack Overflow! There's also a Submit Button at the end of the Form and when the Button is clicked, the Form is submitted. While for capturing the Gender value, a DropDownList with three options is created using the Html.DropDownListFor function. I have a DropDownList on a Razor view that will not show the the item that I have marked as Selected in the SelectList. this problem is common. To learn more, see our tips on writing great answers. Make Sure that your return Selection Value is a String and not and int when you declare it in your model. Right click the DDL_Starter.zip file and select Extract All to unzip the file. Also, to anyone who has a SelectList with a different value attribute than the display text between the option tags for example: Because it seems a bit overboard to have to change a model just to contain a simple list of items that you want to contain in a dropdown, ViewBag is dynamic, so you move any potential type-safety issues from the compile time--where they're easy to see--out into the runtime, where they're much harder to nab (as is the case in your last question to s.o.). Thanks for contributing an answer to Stack Overflow! Find all pivots that the simplex algorithm visited, i.e., the intermediate solutions, using Python. I've spent two full days searching this site and the Internet for a solution but nothing I try seems to work. My model connection is "public SelectList MonthList { get; set; }" as shown above. Stack Overflow for Teams is moving to its own domain! Why is DropDownListFor not recognizing the selected value in my editor template? The line which matters from him is last 2 lines of codes from C# and 2 lines of code from HTML. Before proceeding step by step first we will go through the meaning of Client Side and Server Side. I have a model property that is a delegate type with a custom model binder to take in the name of the Method and actually bind that method from a list of predefined method calls that match the delegate signature. Please help. How can I jump to a given year on the Google Calendar application on my Google Pixel 6 phone? How does the Beholder's Antimagic Cone interact with Forcecage / Wall of Force against the Beholder? I encountered this issue recently. Hope that helps. @ppumkin - if your eyes are burning then edit the code. He suggests that MVC will lookup the selected value from ViewData, when the select list is from ViewData. ASP.NET MVC 4 DropdownListFor, Populating using LINQ from DBContext? I tried to use the. It drove me mad for about an hour. When the Littlewood-Richardson rule gives only irreducibles? My profession is written "Unemployed" on my passport. There's also a Submit Button at the end of the Form and when the Button is clicked, the Form is submitted. What's the best way to roleplay a Beholder shooting with its many rays at a Major Image illusion? rev2022.11.7.43013. Is any way to set it integer value in selection value. Connect and share knowledge within a single location that is structured and easy to search. Not the answer you're looking for? The options property returns the collection of all the option elements in the <select> dropdown list. Can FOSS software licenses (e.g. I had a very similar problem and none of the answers helped. I inserted a breakpoint and investigated the value of categoryList property. What do you call an episode that is not closely related to the main plot?
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