Tags down


Parameters on Url.Action() have null properties

By : Tim Lundqvist
Date : October 17 2020, 08:10 AM
help you fix your problem It doesn't know how to serialize the model into a query string :)
You need to break your model into multiple properties with simple values, or use a form POST to submit them as a model.
code :

Share : facebook icon twitter icon

Asp.Net MVC 3 Action Result parameters and data validation: are all primitive properties to be string?

By : Kapil Nanda
Date : March 29 2020, 07:55 AM
I wish this helpful for you You should define your view models to have properties (or fields) with the correct data type. There is no requirement for them to be strings. If you have defined a property to be of type int and the model binder binds the request data to it, but cannot coerce the value to an int then the property will not be set and the model state will indicate that there is an error.
Some people have the concern of wanting to rerender the page and still have the user value in the textbox to allow them to correct it. If you use the built in Html helper methods, then this will be done for you as it looks to see if there is a model state error for that field and if there is, it will try and find the value from the request data and use that instead.

ASP.Net mvc Url.Action parameters are always null

By : mbmb
Date : March 29 2020, 07:55 AM
wish helps you It appears that you are misunderstanding the workflow here. The link in you code is calculated by the server before is sends the page to the client. There is no way for it to use the values that the user enters into the text boxes later. To do that, you need a form with a submit action, or an AJAX call that extracts the values of the HTML elements and sends those back to the server.

Make action properties set from empty string parameters null

By : olchik.k
Date : March 29 2020, 07:55 AM
I hope this helps . I don't think too many people would really desire this behavior since it basically subverts normal HTTP parameter behavior, where unfilled parameters are an empty string.
You have a few options.

Redirect to action with parameters always null in mvc

By : Mandar
Date : March 29 2020, 07:55 AM
hop of those help? You cannot pass complex objects in an url like that. You will have to send its constituent parts:
code :
public ActionResult Action1()
     if (ModelState.IsValid)
           // Here user object with updated data
           return RedirectToAction("action2", new { 
               id = user.Id, 
               firstName = user.FirstName, 
               lastName = user.LastName, 
     return view(Model);
public ActionResult Action1()
     if (ModelState.IsValid)
           // Here user object with updated data
           return RedirectToAction("action2", new { 
               id = user.Id, 
     return view(Model);
public ActionResult Action2(int id)
    User user = GetUserFromSomeWhere(id);
    return view(user);
public ActionResult Action1()
           TempData["user"] = user;
           // Here user object with updated data
           return RedirectToAction("action2");
     return view(Model);
public ActionResult Action2()
    User user = (User)TempData["user"];
    return View(user);

Mapstruct Mapping : Return null object if all source parameters properties are null

By : Diego Gómez
Date : March 29 2020, 07:55 AM
it should still fix some issue This currently is not supported from MapStruct directly. However, you can achieve what you want the help of Decorators and you will have to manually check if all the fields are empty and return null instead of the object.
code :
public interface TagMapper {
        @Mapping(target = "id", source = "tagId"),
        @Mapping(target = "label", source = "tagLabel")
    Tag mapToBean(TagRecord tagRecord);

public abstract class TagMapperDecorator implements TagMapper {

    private final TagMapper delegate;

    public TagMapperDecorator(TagMapper delegate) {
        this.delegate = delegate;

    public Tag mapToBean(TagRecord tagRecord) {
        Tag tag = delegate.mapToBean( tagRecord);

        if (tag != null && tag.getId() == null && tag.getLabel() == null) {
            return null;
        } else {
            return tag;
Related Posts Related Posts :
  • File not found in Gitlab-CI
  • Using collision to pick up items
  • Polygon on Bing Map using Local GeoJSON Object results in wrong location
  • Searching for a Blame
  • Outlook Add In Recipient Not Being Returned
  • Verify the signing of manifest and application files
  • Gulp 4 watch gulp.series only run one time
  • How to label markers similar to Google Maps in Leaflet
  • How to efficiently manage YAML documents in Java with jacksoon-dataformat-yaml?
  • Camel REST DSL - Premature end of Content-Length delimited message body
  • Moodle database dump not working on restore
  • Return an expression containing ArrayWrapper
  • Does Barcode/Magswipe Track data contains photo/image information on Driving License?
  • Here API Indoor discovery
  • What is the best way to detect a button push - Arduino
  • Does RadListView still exist (Nativescript pro-ui)
  • Implementing traits without repeating methods already defined on the struct
  • Twilio Studio create variable
  • Test sbt plugin
  • Dot Net Nuke 9 Create Site Template
  • TypeError: Cannot read property 'id' of null
  • I don't understand how 'exists' works in mysql
  • Does Flatten have any effects other than flattening collections element-wise?
  • Workaround for pinnable Office add-in on OS X?
  • Opened VS 2013 Solution in VS 2017. Now Razor intellisense doesn't work
  • The application has not been granted consent and is unable to be used for local accounts
  • How to express two columns with org-mode format to be exported by Pandoc to Powerpoint
  • Displaying time relative to a given using luxon library
  • How Do I Use a PanGestureRecognizer to Reposition a Sublayer?
  • Working out the maximum drop-down width for a CComboBoxEx with icons
  • How to send asynchronous call to application insights (AZURE)
  • How can a add a custom license to my dotnet nuget package?
  • What does Metis: Unused theorems mean in this context?
  • dig returns wrong record type
  • Haproxy multi-line config
  • How to programatically retrieve information from organisation directory?
  • How to make the application window maximized by default
  • Mongoose Document.toObject produces GraphQL error
  • Nativescript transparent row gridlayout
  • Apache Airflow - Maintain table for dag_ids with last run date?
  • .NET standard 2.0 project not able to load Dapper 1.50.5
  • CGAL: How do I rotate one 3D vector onto another?
  • Google receipt validation - 401 - permissionDenied
  • Create 2D Circle from Existing Grid
  • Setting up Rethinkdb with bash command in docker-compose
  • Microsoft Cognitive Services Sentiment Analysis: Retention period
  • How to install Cocoapods behind a firewall
  • rxjs - stop observable with a subject subscription
  • Verilog : A task with continuous assign output for local variables
  • Delphi flow with indy
  • How to hide drop-downs when clicking Tableau buttons using Tableau Reader
  • What is the best way to restrict access to an Application Load Balancer?
  • google d8 (v8 shell) navigation on Mac (arrow keys) do not navigate
  • is Bluetooth BR/EDR same as bluetooth Classic
  • How to pass onClick handler from parent to child components through optional labeled arguments
  • Timer Routine to Auto close database doesn't always kick off
  • Why can I not access a variable declared in a macro unless I pass in the name of the variable?
  • How to get the address of a constant in MIPS?
  • What does this Zurb Foundation 6 mixin @include xy-grid() mean?
  • C++ Builder > TControl.Parent property > does the parent free the children?
  • shadow
    Privacy Policy - Terms - Contact Us © voile276.org