Dynamically identifying properties in C#

Is there a way to dynamically identify design time properties in C#? For example:

class MyClass
{
    public string MyProperty1 { get; set; }  
}

And then reference it something like this:

string myVar = "MyProperty1";
MyCla开发者_C百科ss.myVar = "test";

---

If you want to set the value of a property at runtime and the name of the property is only known at runtime you need to use Reflection. Here's an example:

public class MyClass
{
    public string MyProperty1 { get; set; }
}

class Program
{
    static void Main()
    {
        // You need an instance of a class 
        // before being able to set property values            
        var myClass = new MyClass();
        string propertyName = "MyProperty1";
        // obtain the corresponding property info given a property name
        var propertyInfo = myClass.GetType().GetProperty(propertyName);

        // Before trying to set the value ensure that a property with the
        // given name exists by checking for null
        if (propertyInfo != null)
        {
            propertyInfo.SetValue(myClass, "test", null);

            // At this point you've set the value of the MyProperty1 to test 
            // on the myClass instance
            Console.WriteLine(myClass.MyProperty1);
        }

    }
}

---

how about simply implementing an indexer on your class

public class MyClass
{
    public string MyProperty1 { get; set; }

    public object this[string propName]
    {
        get
        {
            return GetType().GetProperty(propName).GetValue(this, null);
        }
        set
        {
            GetType().GetProperty(propName).SetValue(this, value, null);
        }
    }
}

and then you can do something very similar

var myClass = new MyClass();
string myVar = "MyProperty1";
myClass[myVar] = "test";

---

Yes, of course you can. You need to get a FieldInfo object relating to the property that you want to set.

var field = typeof(MyClass).GetField("MyProperty1");

then from that field info object, you can set the value of any instance of that class.

field.SetValue(myinstanceofmyclass, "test");

See MSDN: FieldInfo for other fun stuff you can do with reflection.