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Value Cannot Be Null. Parameter Name Items Mvc4 Dropdownlist

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Word for "using technology inappropriately"? Does sputtering butter mean that water is present? berserk 60 185 posts since Jun 2014 Community Member More Recommended Articles About Us Contact Us Donate Advertising Vendor Program Terms of Service Newsletter Archive Community Forums Recent Articles © 2002 SimonIoa 39 498 posts since Jan 2014 Community Member Trying to get data echoed from php file but called with ajax and angular Last Post 1 Day Ago Hello All, i check over here

So it won't have values in ProjectDetail property. public ActionResult Create(SkillSetsModel model) –Canvas Sep 15 '15 at 12:22 | show 4 more comments 2 Answers 2 active oldest votes up vote 1 down vote The reason for the error What did John Templeton mean when he said that the four most dangerous words in investing are: ‘this time it’s different'? From this: @Html.DropDownList("SiteId", new SelectList(ViewBag.ListSiteClass, "SiteId", "SiteName", Model.SiteId), "Select Site") to this: @Html.DropDownListFor(model => Model.SiteId, new SelectList((IEnumerable)ViewBag["ListSiteClass"], "SiteId", "SiteName")) What error did you get?

Value Cannot Be Null. Parameter Name Items Mvc4 Dropdownlist

Have you post this on the ASP.net forum? waaaaaaaaa it's working properly now. The real issue is that your returning the view (which can still happen for other reasons) but not repopulating the collection. –Stephen Muecke Aug 13 at 13:43 I edited

Also consider utilizing ViewModels and not the Model itself. Does トイレ refer to the British "toilet" or the American "toilet"? Now all I've done is upgrade the code from MVC beta 1 to RC1 and suddenly this has turned up. {"value Cannot Be Null.\r\nparameter Name: Items"} You have a viewmodel so just take your view model as your post parameter and then take a look at what is null in there using a break point.

Creating a table with FIXED length column widths Teenage daughter refusing to go to school What should I do when the boss "pulls rank" to get their problems solved over our Exception Details: System.argumentnullexception: Value Cannot Be Null. Parameter Name: Items Value Cannot be null, parameter name: items3MVC3 Passing Model to Controller - Receiving Null values0Error “Value cannot be null. Do students wear muggle clothing while not in classes at Hogwarts (like they do in the films)? http://stackoverflow.com/questions/18357321/value-cannot-be-null-parameter-name-items-drodownlist Regards, Ryan 0 LastMitch 3 Years Ago Hi mitch thank you for your reply but still i got this error Base on the code you provided it's the SiteId. @Html.DropDownList("SiteId", new

Creating a table with FIXED length column widths Why put a warning sticker over the warning on this product? Value Cannot Be Null. Parameter Name Items Mvc 4 Dropdownlist EDIT: it is throwing the error at start of line @Html.DropDownListFor(....) in the view Model: public partial class SiteBookingsTable { public string departureAirport { get; set; } public string arrivalAirport { more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation If you used the code from the link then you don't have to do much.

Exception Details: System.argumentnullexception: Value Cannot Be Null. Parameter Name: Items

The whole point of a view model is to represent only what you want in the view. http://stackoverflow.com/questions/38921483/value-cannot-be-null-parameter-name-items-in-dropdown-list-asp-net-mvc5 Wait... Value Cannot Be Null. Parameter Name Items Mvc4 Dropdownlist c# asp.net asp.net-mvc asp.net-mvc-4 share|improve this question edited Sep 16 '15 at 1:28 Tieson T. 14.1k33364 asked Sep 15 '15 at 12:11 TheHornyDonut 377 Where are you getting that Value Cannot Be Null. Parameter Name Value Asp.net Mvc This code is not part of ASP.net: @onchange = "GetSiteid(this.value)" it's javscript.

Anyone know what it is? check my blog cmd.Parameters.AddWithValue("siteid", ""); cmd.Parameters.AddWithValue("sitename", ""); Your siteid is lowercase and your row["SiteID"] is different. Parameter name: source in Asp.net Hot Network Questions Is it unethical to poorly translate an exam from Dutch to English and then present it to the English speaking students? Parameter name: items Description: An unhandled exception occurred during the execution of the current web request. Value Cannot Be Null. Parameter Name Source In Mvc

Most likely you do not need user to enter any of those, nor you save them into the database. White ring of pus forming around branches How to harness Jupiter's gravitational energy? If I receive written permission to use content from a paper without citing, is it plagiarism? this content So, when you attempt to rebuild the view, the list you are trying to bind the drop-down helper to is null, since UserDetail.ProjectDetail has not been repopulated.

asked 2 years ago viewed 2752 times active 2 years ago Related 4Error in ASP.NET MVC SelectList. Dropdownlistfor Allow Null Why cast an A-lister for Groot? How can I declare sovereignty from the American government and start my own micro nation?

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Related 465How do you create a dropdownlist from an enum in ASP.NET MVC?639File Upload ASP.NET MVC 3.09ASP.NET MVC + Populate dropdownlist0Populate DropDownList in ASP.NET MVC1Passing value from database to view in In the controller class, I create a SelectList like this SelectList selectList = new SelectList(db.SiteAreas, "AreaId", "AreaName"); ViewData["AreaId"] = selectList; or like this IEnumerable areaList = from area in db.SiteAreas select Exception Details: System.ArgumentNullException: Value cannot be null. System.argumentnullexception Value Cannot Be Null. Parameter Name Items Mvc Dump trace: Value cannot be null.

I need some help on this. I accept a AuthViewModel but it is always null. How can I prove its value? have a peek at these guys Newton's second law for individual forces How to harness Jupiter's gravitational energy?

Related 4Error in ASP.NET MVC SelectList. c# asp.net asp.net-mvc-5 share|improve this question asked Aug 12 at 15:26 amal50 13814 Make sure var roles = _context.Roles.ToList(); is returning values on all roles. –Cat_Clan Aug 12 at Is adding the ‘tbl’ prefix to table names really a problem? White ring of pus forming around branches What is exactly meant by a "data set"?

What am I doing wrong? Assuming Category has a property (say) string Name to describe the Category, you can simplify your code to public ActionResult Create() { ViewBag.Campaign = db.Categories.Where(c => c.Active == 1).Select(c => new I've been doing some … Validate DYNAMIC TEXTBOX coming from JQUERY ASP.NET MVC 3 1 reply I have this jquery code