/// <summary>
/// // This class doesn't compile. That's on purpose. Read the comments why.
/// </summary>
/// <param name="args"></param>
public void Main(string[] args)
{
// When using ref you have to assign a value to the variable used as out parameter
// The next two lines won't compile.
SampleClass refSampleClass1;
RefMethod(ref refSampleClass1);
// This does work
SampleClass refSampleClass2 = null;
RefMethod(ref refSampleClass2);
// When using OUT you can work with non assigned variables
SampleClass outSampleClass1;
OutMethod_AccessBeforeAssign(out outSampleClass1);
// When using OUT you can work with assigned variables as well
SampleClass outSampleClass2 = new SampleClass();
OutMethod_AccessBeforeAssign(out outSampleClass2);
}
public void RefMethod(ref SampleClass sample)
{
// I can access sample here because I use ref instead of out
int i = sample.myValue;
}
/// <summary>
/// This method would't compile because sample has no value assigned before leaving.
/// </summary>
/// <param name="sample"></param>
public void OutMethod(out SampleClass sample)
{
// no value assigned
}
