C#

private byte[] Convert(int datePart)
{
  // First of all, convert the date part into hex.
  string convertedPart = datePart.ToString("X2");
  // Now, return the byte array for the part.
  System.Text.UTF8Encoding enc = new System.Text.UTF8Encoding();
  return enc.GetBytes(convertedPart);
}

int mfgDate_mo_int = mfg.Month;

"{Binding Obj[TestEnum.Enum1]}"

"{Binding Obj[Enum1]}"

{Binding Obj[Enum1.DoSomething()]}

{Binding ObjDoSomething[Enum1]}
{Binding ObjDoSomethingElse[Enum1]}

LionAM wrote:

Additionally: Can I use an expression (for example an extension method

C#

TestEnum.Enum1.DoSomething()

public enum TestEnum: int
{
    Enum1 = 3,
    EnumZwei = 9
}

public static class MyExt
{
    public static TestEnum DoSomething(this TestEnum e)
    {
        return TestEnum.EnumZwei;
    }
}
// and then calling it, which looks plain weird;
class Program
{    
    public static void Main (string[] args)
    {    
        Console.WriteLine(TestEnum.Enum1.DoSomething());
    }
}

LionAM wrote:

I hoped that I could use something like

C#

<CheckBox IsChecked="{Binding Obj[TestEnum.Enum1]}" ...

with some helper object providing an index operator. The first works, the second does not...

public static class MyExt
{
    public static string Parse(this string SomeString)
    {
        foreach (var enumVal in Enum.GetValues(typeof(TestEnum)))
        {
            string enumValAsString = String.Format("{0}.{1}", 
                enumVal.GetType().Name, enumVal);
            int enumValAsInt = (int)enumVal;
            if (SomeString.Contains(enumValAsString))
            {
                SomeString = SomeString.Replace(enumValAsString, enumValAsInt.ToString());
            }
        }
        return SomeString;
    }
}
// and an example on using that;
class Program
{    
    public static void Main (string[] args)
    {    
        string s = "{Binding Obj[TestEnum.Enum1]}";
        Console.WriteLine(s);
        Console.WriteLine(s.Parse());
    }
}

Bastard Programmer from Hell
if you can't read my code, try converting it here[^]