DisplayMember in Combobox not working properly - c#

I have this method that adds Conta instances to a ComboBox called "comboContas":
public void AdicionaConta(Conta novaConta)
{
comboContas.Items.Add(novaConta);
comboContas.DisplayMember = "Titular";
}
Note that I've set the DisplayMember property to "Titular". Here is my Conta class:
public abstract class Conta
{
public int Numero { get; set; }
public double Saldo { get; set; }
public Cliente Titular { get; set; }
public override string ToString()
{
return "titular: " + this.Titular.Nome;
}
}
Now, "Titular" is of Cliente type.
Here's Cliente class:
public class Cliente
{
public string Nome { get; set; }
public string Rg { get; set; }
public Cliente(string nome)
{
this.Nome = nome;
}
public override string ToString()
{
return "ToString do Cliente: " + this.Nome;
}
}
What I'd like to show in the "comboContas" ComboBox is something like "ToString do Cliente: Gabriel".
However, the ToString method of the Cliente class is not being called. Instead, the one being called is from the Conta class.
This is pretty simple stuff and I really don't know what's happening. If I change DisplayMember to any other property, it works. If I change the type of the "Titular" property to any other type, the ToString() of this other type is called. It just doesn't work with Cliente.


Something is wrong with your code (setting it after every add instead of in advance?) because it indeed works as expected. Check it out:
using System;
using System.Windows.Forms;
namespace Tests
{
public class Conta
{
public int Numero { get; set; }
public double Saldo { get; set; }
public Cliente Titular { get; set; }
public override string ToString()
{
return "titular: " + this.Titular.Nome;
}
}
public class Cliente
{
public string Nome { get; set; }
public string Rg { get; set; }
public Cliente(string nome)
{
this.Nome = nome;
}
public override string ToString()
{
return "ToString do Cliente: " + this.Nome;
}
}
static class Program
{
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
var form = new Form { Padding = new Padding(16) };
var comboBox = new ComboBox { Dock = DockStyle.Top, Parent = form };
comboBox.DisplayMember = "Titular";
comboBox.Items.AddRange( new []
{
new Conta { Titular = new Cliente("Victor") },
new Conta { Titular = new Cliente("Mauricio") },
new Conta { Titular = new Cliente("csni") },
});
Application.Run(form);
}
}
}
Result:


I'm not 100% sure why what you are doing isn't working, but one way that would likely work is to do something like this:
public class Client
{
public string DisplayName { get { return "ToString do Client: " + this.Nome; } }
}
Then, just change your combo box to bind the DisplayMember to DisplayName:
public void AdicionaConta(Conta novaConta)
{
comboContas.Items.Add(novaConta);
comboContas.DisplayMember = "Titular.DisplayName";
}
I hope this helps!

Related

Method for showing list elements

I have list in class
public List<Igrac> Igraci { get; set; } = new List<Igrac>();
The class:
class Igrac
{
public string Ime { get; set; }
public string Prezime { get; set; }
public string Pozicija { get; set; }
public int Godine { get; set; }
public Igrac(string Ime, string Prezime, string Pozicija, int Godine)
{
this.Ime = Ime;
this.Prezime = Prezime;
this.Pozicija = Pozicija;
this.Godine = Godine;
}
}
Added new list elements:
noviklb.DodavanjeIgraca(new Igrac("Petar", "Petrovic", "Krilo", 1992));
noviklb.DodavanjeIgraca(new Igrac("Badr", "Hari", "Napad", 1993));
The method for adding is working OK. The problem is that when I use Console.WriteLine I get an error like this:
System.Collections.Generic.List`1[zadatak.Program+Igrac]
I Googled and foreach is solution but I cant do it right. Do I need to write foreach as method?

class Igrac
{
public string Ime { get; }
public string Prezime { get; }
public string Pozicija { get; }
public int Godine { get; }
public Igrac(string Ime, string Prezime, string Pozicija, int Godine)
{
this.Ime = Ime;
this.Prezime = Prezime;
this.Pozicija = Pozicija;
this.Godine = Godine;
}
}
public override string ToString()
{
return $"{Ime} {Prezime} {Pozicija} {Godine}";
}
Now you can use.
string myStringDate = new Igrac("Petar", "Petrovic", "Krilo", 1992).ToString();
ALSO NOTE: It would be good to make you properties get only.
Working link:
https://dotnetfiddle.net/zMNiln

use this code:
public void showList(List<Igrac> noviklb)
{
foreach (var item in noviklb)
{
Console.WriteLine("Ime : " + item.Ime);
Console.WriteLine("Prezime : " + item.Prezime);
Console.WriteLine("Pozicija : " + item.Pozicija);
Console.WriteLine("Godine : " + item.Godine);
Console.WriteLine("Get New Record****************** ");
}
}

Unable to Deserialize data from Nested JSON List

Coming here after learning about C# classes Constructors and ArrayLists so that not to put a completely dumb question here :)
I'm trying to Deserialize below Nested Lists of JSON returned from an API GET call as below:
I've been able to get the value from the empArra (Field: Emp), but subsequent lists like yearArray, prod and sale are not returning there values.
Can you please look into the below code that where is it doing wrong?
JSON
[
{
"employee":"156718100",
"availability":[
{
"year":2018,
"sales":{
"availability":"Maybe",
"reason":""
},
"prod":{
"availability":"Maybe",
"reason":""
}
},
{
"year":2019,
"sales":{
"availability":"Maybe",
"reason":""
},
"prod":{
"availability":"Maybe",
"reason":""
}
},
{
"year":2020,
"sales":{
"availability":"Maybe",
"reason":""
},
"top":{
"availability":"Maybe",
"reason":""
}
},
{
"year":2021,
"sales":{
"availability":"Maybe",
"reason":""
},
"prod":{
"availability":"Maybe",
"reason":""
}
}
]
}
]
Classes
public class sale
{
public string SaleAvailability { get; set; }
public string SaleReason { get; set; }
public sale(string pSaleAvailability, string pSaleReason)
{
this.SaleAvailability = pSaleAvailability;
this.SaleReason = pSaleReason;
}
public override string ToString()
{
return string.Format("{0} {1}", SaleAvailability, SaleReason);
}
}
public class prod
{
public string ProdAvailability { get; set; }
public string ProdReason { get; set; }
public prod(string pProdAvailability, string pProdReason)
{
this.ProdAvailability = pProdAvailability;
this.ProdReason = pProdReason;
}
public override string ToString()
{
return string.Format("{0} {1}", ProdAvailability, ProdReason);
}
}
public class yearArray
{
public int Year { get; set; }
public yearArray(int pYear)
{
this.Year = pYear;
}
List<sale> Sale { get; set; } = new List<sale>();
List<prod> Prod { get; set; } = new List<prod>();
}
public class rootAvailability
{
public List<yearArray> YearArray { get; set; } = new List<yearArray>();
}
public class empArray
{
public string Emp { get; set; }
public List<rootAvailability> RootAvailability { get; set; } = new List<rootAvailability>();
}
public class rootArray
{
public List<empArray> EmpArrays { get; set; } = new List<empArray>();
}
main() method
(After getting the response from API)
IRestResponse response = client.Execute<rootArray>(request);
//Console.WriteLine(response.Content);
List<rootArray> rootArrays = JsonConvert.DeserializeObject<List<rootArray>>(response.Content);
List<empArray> empArrays = JsonConvert.DeserializeObject<List<empArray>>(response.Content);
List<rootAvailability> rootAvailabilities = JsonConvert.DeserializeObject<List<rootAvailability>>(response.Content);
List<yearArray> yearArrays = JsonConvert.DeserializeObject<List<yearArray>>(response.Content);
List<sale> clsSale = JsonConvert.DeserializeObject<List<sale>>(response.Content);
List<prod> clsProd = JsonConvert.DeserializeObject<List<prod>>(response.Content);
foreach (var rootitem in rootArrays)
{
foreach (var emparrayitem in empArrays)
{
Console.WriteLine("NSN: " + emparrayitem.Emp);
foreach (var rootavailabbilitiesitem in rootAvailabilities)
{
foreach (var yearArrayItem in yearArrays)
{
Console.WriteLine("Year: " + yearArrayItem.Year);
foreach (var saleItem in clsSale)
{
Console.WriteLine("SaleAvailability: " + saleItem.SaleAvailability);
Console.WriteLine("SaleReason: " + saleItem.SaleReason);
}
foreach (var prodItem in clsProd)
{
Console.WriteLine("SaleAvailability: " + prodItem.ProdAvailability);
Console.WriteLine("SaleReason: " + prodItem.ProdReason);
}
}
}
}
}
Results
Emp: 159252663
Year: 0
SaleAvailability:
SaleReason:
SaleAvailability:
SaleReason:

You have two problems with your approach:
You want to deserialize the same source over and over again (response.Content) for different class instances. It can be deserialized into one object type: your top level entity.
Your data model does not reflect your data. For example YearArray should have a single Prod and Sale property not a list of them.
You have several options how to fix it. Let me share with you the two most common ones:
With proper naming
Your object model should look like this:
public class Sale
{
public string Availability { get; set; }
public string Reason { get; set; }
}
public class Prod
{
public string Availability { get; set; }
public string Reason { get; set; }
}
public class MidLevel
{
public int Year { get; set; }
public Sale Sales { get; set; }
public Prod Top { get; set; }
}
public class TopLevel
{
public string Employee { get; set; }
public List<MidLevel> Availability { get; set; } = new List<MidLevel>();
}
Then all you need to do is to call the following command:
var result = JsonConvert.DeserializeObject<TopLevel[]>(json);
Now, your result will be populated with all the data.
With JsonProperty
If you don't want to use the same names in your domain model which is used in the json then you can define the mapping between these two worlds via JsonProperty attributes.
Now your domain model can look like this:
public class SalesInformation
{
[JsonProperty(PropertyName = "availability")]
public string Avail { get; set; }
[JsonProperty(PropertyName = "reason")]
public string Reasoning { get; set; }
}
public class ProdInformation
{
[JsonProperty(PropertyName = "availability")]
public string Availability { get; set; }
[JsonProperty(PropertyName = "reason")]
public string Reasoning { get; set; }
}
public class MidLevel
{
[JsonProperty(PropertyName = "year")]
public int AvailYear { get; set; }
[JsonProperty(PropertyName = "sales")]
public SalesInformation SalesInfos { get; set; }
[JsonProperty(PropertyName = "top")]
public ProdInformation ProdInfos { get; set; }
}
public class TopLevel
{
[JsonProperty(PropertyName = "employee")]
public string Emp { get; set; }
[JsonProperty(PropertyName = "availability")]
public List<MidLevel> Availabilities { get; set; } = new List<MidLevel>();
}
The usage would be exactly the same:
var result = JsonConvert.DeserializeObject<TopLevel[]>(json);
UPDATE: How to display data
To represent hierarchy in a console application can be achieved in may ways. Here I will use indentation. I've introduced the following tiny helper method:
public static void WriteWithIndent(int level, string message) => Console.WriteLine("".PadLeft(level * 2) + message);
With this in hand the data visualization could be achieved in the following way:
var result = JsonConvert.DeserializeObject<TopLevel[]>(json);
foreach (var topLevel in result)
{
Console.WriteLine($"Employee: {topLevel.Emp}");
foreach (var midLevel in topLevel.Availabilities)
{
WriteWithIndent(1, $"Year: {midLevel.AvailYear}");
WriteWithIndent(1, "Sales:");
WriteWithIndent(2, $"Avail: {midLevel.SalesInfos.Avail}");
WriteWithIndent(2, $"Reason: {midLevel.SalesInfos.Reasoning}");
WriteWithIndent(1, "Top:");
WriteWithIndent(2, $"Avail: {midLevel.ProdInfos.Avail}");
WriteWithIndent(2, $"Reason: {midLevel.ProdInfos.Reasoning}");
}
}
The printed output will look like this:
Employee: 156718100
Year: 2018
Sales:
Avail: Maybe
Reason:
Top:
Avail: Maybe
Reason:
Year: 2019
Sales:
Avail: Maybe
Reason:
Top:
Avail: Maybe
Reason:
Year: 2020
Sales:
Avail: Maybe
Reason:
Top:
Avail: Maybe
Reason:
Year: 2021
Sales:
Avail: Maybe
Reason:
Top:
Avail: Maybe
Reason:

How to share a list of objects without giving ability to modify their state?

Let's say I have a class StockMarket which has a list of Companies.
class StockMarket : IStock
{
private static List<IObserverPush> observersPush;
private static List<IObserverPull> observersPull;
public static List<Company> Companies { get; private set; }
public StockMarket()
{
observersPush = new List<IObserverPush>();
observersPull = new List<IObserverPull>();
Companies = new List<Company>() { new Company("Unilever", "UNA", 47.72, 0.77, 1.63, -3.45, "135B"),
new Company("ING Groep", "INGA", 13.40, -0.07, -0.50, -12.38, "60.4B"),
new Company("ArcelorMittal", "MT", 29.50, 0.14, 0.48, 36.05, "54.6B"),
new Company("ASML Holding", "ASML", 167.40, 2.00, 1.21, 36.49, "53.3B"),
new Company("Heineken", "HEIA", 87.66, -0.02, -0.02, 2.80, "49B"),
new Company("RELX", "REN", 18.15, 0.17, 0.95, -0.22, "38.9B"),
new Company("Philips", "PHIA", 35.49, 0.17, 0.47, 7.61, "33.3B"),
new Company("Unibail Rodamco", "UL", 196.40, -0.15, -0.08, -16.78, "20.3B"),
new Company("Akzo Nobel", "AKZA", 75.68, -0.16, -0.21, 0.33, "19.4B"),
new Company("Altice", "ATC", 7.58, 0.16, 2.16, -66.30, "17.6B")};
Thread thread = new Thread(SimulateMarket);
thread.Start();
}
public void Subscribe(IObserverPull o)
{
observersPull.Add(o);
o.UpdateMarket();
}
public void Unsubscribe(IObserverPull o)
{
observersPull.Remove(o);
}
public void Subscribe(IObserverPush o)
{
observersPush.Add(o);
o.UpdateMarket(Companies);
}
public void Unsubscribe(IObserverPush o)
{
observersPush.Remove(o);
}
public void NotifyObservers()
{
foreach(IObserverPush o in observersPush)
{
o.UpdateMarket(Companies);
}
foreach(IObserverPull o in observersPull)
{
o.UpdateMarket();
}
}
public void SimulateMarket()
{
while(observersPush.Count + observersPull.Count > 0)
{
//randomly change property values of companies
//and notify the observers about the changes
}
}
}
Company class has some properties.
public class Company
{
public string Name { get; private set; }
public string Symbol { get; private set; }
public double Price { get; set; }
public double Change { get; set; }
public double ChangePercentageDay { get; set; }
public double ChangePercentageYear { get; set; }
public string Capital { get; private set; }
public Company(string name, string symbol, double price, double change, double changePercentageDay,
double changePercentageYear, string capital)
{
Name = name;
Symbol = symbol;
Price = price;
Change = change;
ChangePercentageDay = changePercentageDay;
ChangePercentageYear = changePercentageYear;
Capital = capital;
}
}
The Forms have references to the StockMarket and they use it to retrieve data about the companies and to display it.
Form 1
public partial class ConcreteObserverPush : Form, IObserverPush
{
private StockMarket stockMarket;
public ConcreteObserverPush()
{
InitializeComponent();
stockMarket = new StockMarket();
stockMarket.Subscribe(this);
}
public void UpdateMarket(List<Company> companies)
{
stockMarketListView.Items.Clear();
foreach(Company c in companies)
{
ListViewItem item = new ListViewItem(c.Symbol);
item.SubItems.Add(c.Price.ToString());
item.SubItems.Add(c.Change.ToString());
item.SubItems.Add(c.ChangePercentageDay.ToString() + "%");
stockMarketListView.Items.Add(item);
}
}
private void ConcreteObserverPush_FormClosing(object sender, FormClosingEventArgs e)
{
stockMarket.Unsubscribe(this);
}
}
Form 2
public partial class ConcreteObserverPull : Form, IObserverPull
{
private StockMarket stockMarket;
public ConcreteObserverPull()
{
InitializeComponent();
stockMarket = new StockMarket();
stockMarket.Subscribe(this);
}
public void UpdateMarket()
{
stockMarketListView.Items.Clear();
foreach (Company c in StockMarket.Companies)
{
ListViewItem item = new ListViewItem(c.Symbol);
item.SubItems.Add(c.Name);
item.SubItems.Add(c.Price.ToString());
item.SubItems.Add(c.Change.ToString());
item.SubItems.Add(c.ChangePercentageDay.ToString() + "%");
item.SubItems.Add(c.ChangePercentageYear.ToString() + "%");
item.SubItems.Add(c.Capital);
stockMarketListView.Items.Add(item);
}
}
private void ConcreteObserverPull_FormClosing(object sender, FormClosingEventArgs e)
{
stockMarket.Unsubscribe(this);
}
}
The problem is that if the Form gets the list of companies through the property on StockMarket it can change their state. However, I want only StockMarket to have the ability to change the state of the company.
So what would be the best way to share Company state with Form when requested and preventing the Form from modifying it.
I know that a possible solution would be to return clones of Company objects, but I believe there should be a better solution.
Any help is appreciated!

The general gist of this would be to make your Company object immutable. Then you would add methods to the StockMarket object to manipulate the Company list and replace entries with new ones when you want to change a value.
Here's a quick example put together in LINQPad of making the Company class immutable and adding an UpdatePrice method to the StockMarket class.
Whether you want to be able to manipulate the Companies property from outside the StockMarket can be handled by returning the list as ReadOnlyCollection so that it's size can't be manipulated by a consumer.
void Main()
{
var sm = new StockMarket();
sm.Companies.Add(new Company("Test", "TST", 50, 0));
sm.UpdatePrice("Test", 45);
var testCompany = sm.Companies.First(x => x.Name == "Test");
Console.WriteLine($"{testCompany.Name},{testCompany.Symbol},{testCompany.Price},{testCompany.Change}");
//Output: Test,TST,45,-5
}
class StockMarket
{
public List<Company> Companies { get; private set; } = new List<Company>();
public void UpdatePrice(string name, double price) {
var index = Companies.FindIndex(x => x.Name == name);
if(index >= 0)
{
var previous = Companies[index];
Companies[index] = new Company(previous.Name, previous.Symbol, price, price - previous.Price);
}
}
}
class Company
{
public Company(string name, string symbol, double price, double change) {
Name = name;
Symbol = symbol;
Price = price;
Change = change;
}
public string Name { get; }
public string Symbol { get; }
public double Price { get; }
public double Change { get; }
///...
}

This would be a solution:
Create the Company class as a Private Inner Class inside of the StockMarket class, that way it'd only be accessible inside of it, and then provide an interface that only includes the get of all the properties and make Company implement it. You would have to make StockMarket's Company list to be the Interface's type.
Any modification you'd have to do you'd do it by casting the interface's List objects into the original class type.
Example:
class Program
{
public static StockMarket stockMarket = new StockMarket();
static void Main(string[] args)
{
}
}
public interface ICompany
{
string Name { get; }
}
public class StockMarket
{
public StockMarket()
{
Companies = SomeWildFunctionThatRetrievesAllCompanies();
}
public void OneWildFunctionThatModifiesACompany()
{
Company dunno = (Company)Companies[0];
dunno.Name = "Modification Made Possible";
}
private List<ICompany> SomeWildFunctionThatRetrievesAllCompanies()
{
return new List<ICompany>(new List<Company>());
}
public List<ICompany> Companies { get; private set; }
private class Company : ICompany
{
public string Name { get; set; }
}
}

Try this:
class Company
{
public Company(Type type,string name,string symbol,double price, double change)
{
if (type.Name == "StockMarket")
{
Name = name;
Symbol = symbol;
Price = price;
Change = change;
}
}
private string Name { get; set; }
private string Symbol { get; set; }
private double Price { get; set; }
private double Change { get; set; }
///...
}
This will allow you to change the state only if the type is StockMarket
like:
class StockMarket
{
public List<Company> Companies { get; set; }
public StockMarket()
{
Companies = new List<Company>();
}
public StockMarket someMethod()
{
//You can change the state here
StockMarket s = new StockMarket();
s.Companies.Add(new Company(this.GetType(), "aa", "_", 123, 1234));
return s;
}
//...
}
Now you cannot change the state here:
public partial class Observer: Form
{
private StockMarket stockMarket;
public ConcreteObserverPull()
{
InitializeComponent();
stockMarket = new StockMarket();
//Here you cannot change the state
stockMarket.Companies.Add(new Company(this.GetType(), "aa", "_", 123,12));
}
//...
}

Sorry, I don't know C#, but as an idea, you can wrap returned entities with decorator or proxy, which will throw an exception in case of trying to modify state of a company.

Returning clones with fields set as readonly is the safest way to go.

Run different code based type

I want to call a method for my WPF-App with subtype objects of my Piece class. My problem is that the subtype objects have more properties than e.g the the Text objects.
Do you know a way to cope with this better than I do in my FillForm example?
namespace Namespace
{
public abstract class Piece
{
public int id { get; set; }
public string title { get; set; }
public string description { get; set; }
}
public class Text : Piece
{
}
public class Image: Piece{
public string filePath { get; set; }
public string fileformat { get; set; }
}
public class Video : Image
{
}
}
}
Example method:
public void FillForm(Piece currentPiece)
{
pieceIdTextBox.Text = currentPiece.id.ToString();
pieceNameTextBox.Text = currentPiece.title;
pieceDescriptionTextBox.Text = currentPiece.description;
if (!currentPiece.GetType().ToString().Equals("Namespace.Text"))
{
pieceFileSelectURLTextBlock.Text = (currentPiece as Namespace.Image).filePath;
SetPreviews((currentPiece as Namespace.Image).filePath);
}
}
Thanks!

Why not just change the method to the following with more type-safety
public void FillForm(Piece currentPiece)
{
pieceIdTextBox.Text = currentPiece.id.ToString();
pieceNameTextBox.Text = currentPiece.title;
pieceDescriptionTextBox.Text = currentPiece.description;
if (currentPiece as Namespace.Image imagePiece)
{
pieceFileSelectURLTextBlock.Text = imagePiece.filePath;
SetPreviews(imagePiece.filePath);
}
}

Do a safecast:
public void FillForm(Piece currentPiece)
{
pieceIdTextBox.Text = currentPiece.id.ToString();
pieceNameTextBox.Text = currentPiece.title;
pieceDescriptionTextBox.Text = currentPiece.description;
var imagePiece = currentPiece as Image;
if(imagePiece != null)
pieceFileSelectURLTextBlock.Text = imagePiece .filePath;
SetPreviews(imagePiece .filePath);
}
}

Dynamic class based on string parameter

I have this:
public class Blah
{
public int id { get; set; }
public string blahh { get; set; }
}
public class Doh
{
public int id { get; set; }
public string dohh { get; set; }
public string mahh { get; set; }
}
public List<???prpClass???> Whatever(string prpClass)
where string prpClass can be "Blah" or "Doh".
I would like the List type to be class Blah or Doh based on what the string prpClass holds.
How can I achieve this?
EDIT:
public List<prpClass??> Whatever(string prpClass)
{
using (var ctx = new ApplicationDbContext())
{
if (prpClass == "Blah")
{
string queryBlah = #"SELECT ... ";
var result = ctx.Database.SqlQuery<Blah>(queryBlah).ToList();
return result;
}
if (prpClass == "Doh")
{
string queryDoh = #"SELECT ... ";
var result = ctx.Database.SqlQuery<Doh>(queryDoh).ToList();
return result;
}
return null
}
}

you have to have a common supertype:
public interface IHaveAnId
{
int id { get;set; }
}
public class Blah : IHaveAnId
{
public int id { get; set; }
public string blahh { get; set; }
}
public class Doh : IHaveAnId
{
public int id {get;set;}
public string dohh { get; set; }
public string mahh { get; set; }
}
then you can do:
public List<IHaveAnId> TheList = new List<IHaveAnId>();
and in some method:
TheList.Add(new Blah{id=1,blahh = "someValue"});
TheList.Add(new Doh{id =2, dohh = "someValue", mahh = "someotherValue"});
to iterate through the list:
foreach(IHaveAnId item in TheList)
{
Console.WriteLine("TheList contains an item with id {0}", item.id);
//item.id is allowed since you access the property of the class over the interface
}
or to iterate through all Blahs:
foreach(Blah item in TheList.OfType<Blah>())
{
Console.WriteLine("TheList contains a Blah with id {0} and blahh ='{1}'", item.id, item.blahh);
}
Edit:
the 2 methods and a int field holding the autovalue:
private int autoValue = 0;
public void AddBlah(string blahh)
{
TheList.Add(new Blah{id = autovalue++, blahh = blahh});
}
public void AddDoh(string dohh, string mahh)
{
TheList.Add(new Doh{id = autovalue++, dohh = dohh, mahh = mahh});
}
Another Edit
public List<object> Whatever(string prpClass)
{
using (var ctx = new ApplicationDbContext())
{
if (prpClass == "Blah")
{
string queryBlah = #"SELECT ... ";
var result = ctx.Database.SqlQuery<Blah>(queryBlah).ToList();
return result.Cast<object>().ToList();
}
if (prpClass == "Doh")
{
string queryDoh = #"SELECT ... ";
var result = ctx.Database.SqlQuery<Doh>(queryDoh).ToList();
return result.Cast<object>.ToList();
}
return null;
}
}
in the view you then have to decide what type it is. In asp.net MVC you can use a display template and use reflection to get a good design. But then i still don't know what technology you are using.
Yet another Edit
TestClass:
public class SomeClass
{
public string Property { get; set; }
}
Repository:
public static class Repository
{
public static List<object> Whatever(string prpClass)
{
switch (prpClass)
{
case "SomeClass":
return new List<SomeClass>()
{
new SomeClass{Property = "somestring"},
new SomeClass{Property = "someOtherString"}
}.Cast<object>().ToList();
default:
return null;
}
}
}
And a controller action in mvc:
public JsonResult Test(string className)
{
return Json(Repository.Whatever("SomeClass"),JsonRequestBehavior.AllowGet);
}
then i called it with: http://localhost:56619/Home/Test?className=SomeClass
And got the result:
[{"Property":"somestring"},{"Property":"someOtherString"}]

Is this what you are trying to do?
public class Blah
{
public int id { get; set; }
public string blahh { get; set; }
}
public class Doh
{
public int id { get; set; }
public string dohh { get; set; }
public string mahh { get; set; }
}
class Program
{
public static List<T> Whatever<T>(int count) where T: new()
{
return Enumerable.Range(0, count).Select((i) => new T()).ToList();
}
static void Main(string[] args)
{
var list=Whatever<Doh>(100);
// list containts 100 of "Doh"
}
}

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