model-binding

I am trying to create a form that will consist of a series of dropdown lists, all of which are loaded from a database. I will not know how many dropdown lists will be needed, or how many options each dropdown list will have at compile-time. How can these fields be set-up to allow them to model-bind when posted? There is a lot of other complexity in each of the below code elements, but I cannot get the model binding to work even when reduced down to a basic level. The Models: public class MyPageViewModel { public List<MyDropDownListModel> ListOfDropDownLists { get; set; } } public class

I'm attempting to build an ASP.NET Core 1.1 Controller method to handle an HTTP Request that looks like the following: POST https://localhost/api/data/upload HTTP/1.1 Content-Type: multipart/form-data; boundary=--------------------------625450203542273177701444 Host: localhost Content-Length: 474 ----------------------------625450203542273177701444 Content-Disposition: form-data; name="file"; filename="myfile.txt" Content-Type: text/plain << Contents of my file >> ----------------------------625450203542273177701444 Content-Disposition: form-data; name="text" Content-Type: application/json {

I've ran across a problem which seems to be related to reflection and model binder validation, and FormatterParameterBinding.ExecuteBindingAsync(..) in particular, and though I can use a Method to do what I want I would prefer it if I could use a Property. Here I'm looking for some insight into the model binder validation process, why I am unable to do what I want and how I can fix the problem, or get around it. The setup public class ModelBindingValidationBreaker { public ModelBindingValidationBreaker() { Properties = new List<string>(); } public int A { get; set; } public int B { get; set; }

Say I have a Dictionary<string, string> and I want to update an object with the values from the dictionary, just like model binding in MVC... how would you do that without MVC? You could use the DefaultModelBinder to achieve this but you will need to reference the System.Web.Mvc assembly to your project. Here's an example: using System; using System.Collections.Generic; using System.ComponentModel.DataAnnotations; using System.Globalization; using System.Linq; using System.Web.Mvc; public class MyViewModel { [Required] public string Foo { get; set; } public Bar Bar { get; set; } } public class

I am trying to apply custom model binder for DateTime type property of model. Here is the IModelBinder and IModelBinderProvider implementations. public class DateTimeModelBinderProvider : IModelBinderProvider { public IModelBinder GetBinder(ModelBinderProviderContext context) { if (context == null) { throw new ArgumentNullException(nameof(context)); } if (context.Metadata.ModelType == typeof(DateTime)) { return new BinderTypeModelBinder(typeof(DateTime)); } return null; } } public class DateTimeModelBinder : IModelBinder { private string[] _formats = new string[] { "yyyyMMdd", "yyyy-MM-dd",

I'm implementing a REST API project using ASP.NET Core MVC 2.0, and I'd like to return a 400 status code if model binding failed (because the request is syntactically wrong) and a 422 status code if model validation failed (because the request is syntactically correct but contains unacceptable values). As an example, given an action like [HttpPut("{id}")] public async Task<IActionResult> UpdateAsync( [FromRoute] int id, [FromBody] ThingModel model) I'd like to return a 400 status code when the id parameter in the route contains a non-digit character or when no body has been specified in the

I have the following scenario: A C# base project, with all data domains (custom types) that are used by all others projects in the company. So, It´s a little bit hard to modify it. Now, we are creating our first mvc project with that base project as reference, and the model binding doesnt work for properties of those strings custom types: [Serializable] [TypeConverter(typeof(ShortStrOraTypeConverter))] public class ShortStrOra : BaseString { public ShortStrOra() : this(String.Empty) { } public ShortStrOra(string stringValue) : base(stringValue, 35) { } public static implicit operator