Property Name to Lambda Expression C#

Question

How can I convert a property name to Lambda expression in C#?

Like this: string prop = \"Name\"; to (p => p.Name)

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Answer 1

Using expression trees you can generate the lambda expression.

using System.Linq.Expressions;
public static Expression> GetPropertySelector(string propertyName)
{
    var arg = Expression.Parameter(typeof(T), "x");
    var property = Expression.Property(arg, propertyName);
    //return the property as object
    var conv = Expression.Convert(property, typeof(object));
    var exp = Expression.Lambda>(conv, new ParameterExpression[] { arg });
    return exp;
}

for Person you can call it like:

var exp = GetPropertySelector("Name");//exp: x=>x.Name