Iterating through an enumeration in Silverlight?

Question

In .Net it is possible to iterate through an enumeration by using

System.Enum.GetNames(typeof(MyEnum)) 

or

System.Enum.Ge         


        

Answer 1

I belive this is the same as in the .NET Compact Framework. If we make the assumption that your enum values start at 0 and use every value until their range is over the following code should work.

public static IList GetEnumValues(Type oEnumType)
{
  int iLoop = 0;
  bool bDefined = true;
  List oList = new List();

  //Loop values
  do
  {
    //Check if the value is defined
    if (Enum.IsDefined(oEnumType, iLoop))
    {
      //Add item to the value list and increment
      oList.Add(iLoop);
      ++iLoop;
    }
    else
    {
      //Set undefined
      bDefined = false;
    }
  } while (bDefined);

  //Return the list
  return oList;
}

Obviously you could tweak the code to return the enum names or to match diferent patterns e.g. bitwise values.

Here is an alternate version of the method that returns a IList.

public static IList GetEnumValues()
{
  Type oEnumType;
  int iLoop = 0;  
  bool bDefined = true;  
  List oList = new List();  

  //Get the enum type
  oEnumType = typeof(T);

  //Check that we have an enum
  if (oEnumType.IsEnum)
  {
    //Loop values  
    do
    {
      //Check if the value is defined    
      if (Enum.IsDefined(oEnumType, iLoop))
      {
        //Add item to the value list and increment      
        oList.Add((T) (object) iLoop);
        ++iLoop;
      }
      else
      {
        //Set undefined      
        bDefined = false;
      }
    } while (bDefined);
  }

  //Return the list  
  return oList;
}