How to get a string representation of a property name of a Model in MVC3?

Question

I have the following model:

Public Class MyModel

    Public Property MyModelId As Integer
    Public Property Description As String
    Public Property AnotherProperty As String

End Class

Is there a method to get a property name of the Model as a string representation like the following code?

Dim propertyName as String = GetPropertyNameAsStringMethod(MyModel.Description)

So the propertyName variable has "Description" as value.

there are no such method that do as you want. you get the properties name using reflection. ` string prop = "name"; PropertyInfo pi = myObject.GetType().GetProperty(prop);` — Niranjan Singh, Jan 04 '13 at 14:46
Duplicate : http://stackoverflow.com/questions/3341666/net-get-property-name — jtiger, Jan 04 '13 at 14:49

score 2 · Accepted Answer · edited May 23 '17 at 11:55

Check the Darin Dimitrov' answer on this SO thread - Reflection - get property name.

class Foo
{
    public string Bar { get; set; }
}

class Program
{
    static void Main()
    {
        var result = Get<Foo, string>(x => x.Bar);
        Console.WriteLine(result);
    }

    static string Get<T, TResult>(Expression<Func<T, TResult>> expression)
    {
        var me = expression.Body as MemberExpression;
        if (me != null)
        {
            return me.Member.Name;
        }
        return null;
    }
}

Hope this help..

score 1 · Answer 2 · answered Jan 04 '13 at 14:51

Here is a helper extension method you can use for any property:

public static class ReflectionExtensions
{
    public static string PropertyName<T>(this T owner, 
        Expression<Func<T, object>> expression) where T : class
    {
        if (owner == null) throw new ArgumentNullException("owner");
        var memberExpression = (MemberExpression)expression.Body;
        return memberExpression.Member.Name;
    }

}

However, this will only work on instances of a class. You can write a similar extension method that will operate directly on the type instead.

score 1 · Answer 3 · edited May 23 '17 at 10:09

1

You need to do it using reflection.

There are already loads of posts on stack overflow like this:

How to get current property name via reflection?

Reflection - get property name

Get string name of property using reflection

Reflection - get property name

I believe that the answer will be along the lines of:

 string prop = "name"; 
 PropertyInfo pi = myObject.GetType().GetProperty(prop);

edited May 23 '17 at 10:09

Community

1
1

answered Jan 04 '13 at 14:53

Gaz Winter

2,924
2
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47

score 0 · Answer 4 · edited May 23 '17 at 11:47

0

Create an extension method and then use it where needed.

Private Shared Function GetPropertyName(Of T)(exp As Expression(Of Func(Of T))) As String
    Return (DirectCast(exp.Body, MemberExpression).Member).Name
End Function

have a look at this post as well.

edited May 23 '17 at 11:47

Community

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answered Jan 04 '13 at 14:54

Syneryx

1,278
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score 0 · Answer 5 · answered Jan 04 '13 at 15:15

I have solved this issue editing a bit @NiranjanKala's source example,

converting the code in vb.Net like this

<System.Runtime.CompilerServices.Extension()> _
Public Function GetPropertyName(Of T, TResult)(expression As Expression(Of Func(Of T, TResult))) As String
    Dim [me] = TryCast(expression.Body, MemberExpression)
    If [me] IsNot Nothing Then
        Return [me].Member.Name
    End If
    Return Nothing
End Function

Then I am able to call the extension like this

Dim propertyName as String = GetPropertyName(Of MyModel, String)(Function(x) x.Description)

Then propertyName variable has "Description" as string value.

beware that this approach is not the fastest though. – herzmeister Jan 04 '13 at 15:22 — herzmeister, Jan 04 '13 at 15:22

How to get a string representation of a property name of a Model in MVC3?

5 Answers5