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Published on 2009-08-04T15:29:16Z
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2010/05/30
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If you have an Interface IFoo and a class Bar : IFoo, why can you do the following:
List<IFoo> foo = new List<IFoo>();
foo.Add(new Bar());
But you cannot do:
List<IFoo> foo = new List<Bar>();
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The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions…
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Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test…
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I have the following methods:
public <T> T fromJson( Reader jsonData, Class<T> clazz ) {
return fromJson( jsonData, (Type)clazz );
}
public <T> T fromJson( Reader jsonData, Type clazz ) {
...
}
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type parameters of <T>T…
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I'm trying to make use of the TheoryAttribute, introduced in NUnit 2.5. Everything works fine as long as the arguments are of a defined type:
[Datapoint]
public double[,] Array2X2 = new double[,] { { 1, 0 }, { 0, 1 } };
[Theory]
public void TestForArbitraryArray(double[,] array)
{
// ...
}
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public class Abc<T>
{
public static void main(String[] args)
{
// I want to create an instance of T
}
}
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This question might seem trivial and also stupid at the first glance, but it is much more than this.
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