Stack overflow error in C# - but how to fix it?

Question

I\'ve run into a really interesting runtime bug which generates a rogue stack overflow.

I\'ve defined a structure as follows:

public enum EnumDataTy         


        

Answer 1

As others have said, the stack overflow occurs because your property setter is just calling itself. It may be simpler to understand if you think of it as a method:

// This obviously recurses until it blows up
public void SetDataType(long value)
{
    SetDataType(value);
}

As I understand it, you're trying to create normal properties but with a default value, right?

In that case, you need backing variables which are set by the setters - and the getters should return those variables, too. It's the variables which should get default values:

private long dataSize = 0;
public long DataSize {
  get { return dataSize; }
  set { dataSize = value; }
}

private EnumDataType dataType = EnumDataType.Apple;
public EnumDataType DataType { 
  get { return dataType; }
  set { dataType = value; }
}

Alternatively, use automatic properties but set the defaults in your constructor:

public long DataSize { get; set; }
public EnumDataType DataType { get; set; }

public DataRequest()
{
    DataSize = 0; // Not really required; default anyway
    DataType = EnumDataType.Apple;
}