Convert Object to ObjectArray but the Array should have the Type of the Object

Question

I've a function wich Converts a Object to a Object Array.

I know I can do this

new [] {obj}

but then the Array is of Type object[]. I want that the Array is of the Type of whatever obj.GetType() returns!

Is this possible in a performant way?

Answer 1

You can use a static method of the Array class.

See http://msdn.microsoft.com/en-us/library/zb3cfh7k.aspx

The full example could be

object o = ...;// Some object you want to convert into a an array
var arrayVar = Array.CreateInstance(o.GetType(), 1);

Answer 2

T[] ToObjectArray<T>(T item)
{
    return new T[] { item };
}

You can use it like

int[] arr1 = ToObjectArray(5);
Color[] arr2 = ToObjectArray(Color.Red);