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MVC issue for accessing the data from database:The parameters dictionary contains a null entry for parameter 'id' of non


MVC issue for accessing the data from database:The parameters dictionary contains a null entry for parameter 'id' of non

By : Marcie
Date : October 18 2020, 06:10 PM
it fixes the issue The error is coming from the MVC framework, and has nothing to do with your database configuration. As the error states, you have a non-nullable argument for your action, an int, and you are not sending a value for it. This can happen if you make HTTP calls to this action without providing a value for id, e.g. through a query string in the URL, or otherwise invoking the method. Leaving id = UrlParameter.Optional lets you do that. If you remove this, you might see another error, suggesting where this is coming from.
code :


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asp.net-mvc routing issue : parameters dictionary contains a null entry for parameter

asp.net-mvc routing issue : parameters dictionary contains a null entry for parameter


By : Vincent T
Date : March 29 2020, 07:55 AM
I hope this helps you . I am trying to set up custom routing with the following mapped route , Use a nullable int in your Controller Action.
code :
public ActionResult Add(int? fixtureId)
{
   // return model to view etc..
}
Passing data through ajax - the parameters dictionary contains a null entry for parameter

Passing data through ajax - the parameters dictionary contains a null entry for parameter


By : user3520114
Date : March 29 2020, 07:55 AM
Does that help I got my previous question which is quite the same. Passing data from ajax to mvc controller - null parameter error , Change ajax code like that and it's started to work
code :
GetServerData:function(inputData) {
        var outputData;
        $.ajax({
            type: 'POST',
            async: false,
            url: "/PVTMethods/StandartModelResult",
            data: inputData,
           // async: true,
            success: function (data) {
                outputData = data.result;
                appl.PlotData = data.result;
            },
            error: function (data) {
                console.log("Error" + data);
            },
            dataType: "json",
          //  contentType: "appllication/json; charset=utf-8"
        });
        return outputData;

    }
Again.. The parameters dictionary contains a null entry for parameter

Again.. The parameters dictionary contains a null entry for parameter


By : AustinLPowell89
Date : March 29 2020, 07:55 AM
this will help By default, MVC uses an invariant culture in its model binder. Unfortunately, this causes the DateTime parser to break if you provide the binder a date/time format that doesn't match. To overcome this, you can create a custom model binder like so, changing the culture code, as appropriate:
code :
using System;
using System.Globalization;
using System.Web.Mvc;

public class DateTimeBinder : IModelBinder
{
    public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
    {
        ValueProviderResult value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
        return value.ConvertTo(typeof(DateTime), new CultureInfo("ru-RU"));
        }
    }
}
ModelBinders.Binders.Add(typeof(DateTime), new DateTimeBinder());
ModelBinders.Binders.Add(typeof(DateTime?), new DateTimeBinder());
The parameters dictionary contains a null entry for parameter

The parameters dictionary contains a null entry for parameter


By : babita
Date : March 29 2020, 07:55 AM
This might help you The parameter in your method is int todoId but you not passing any value for that - your only passing a value for a parameter named id.
Change the method to
code :
public ActionResult Complete(int id)
The parameters dictionary contains a null entry for parameter 'id'

The parameters dictionary contains a null entry for parameter 'id'


By : Will Lin
Date : March 29 2020, 07:55 AM
will be helpful for those in need Your action method AddGroupsQty has 2 parameters, qty and id, But when you do the redirect,your querystring does not have the id one! Instead it has one called subject_id
To fix the error, change your route value item from subject_id to id
code :
return RedirectToAction("AddGroupsQty", "Account", new { qty = model.qty, id = id});
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