Convert multiline if-else function to a generic one

Question

I start learning about generics, and I wonder if I can reduce the repetition from this function using generic: My first thought was to make replace all the parse function with "T" = T.Parse( but it seem that it doesn't work at all...

private string GetHexa(PropertyInfo prop, object propValue, FrameTemplate payload)
    {
        Type t = prop != null ? prop.PropertyType : typeof(object);
        Debug.WriteLine(t.Name);
        switch (t.Name)
        {
            case "String":
                byte[] str = HartByteArrayExtensions.LatinToByteArray(payload.Deca);
                return ByteArrayExtensions.ToHexString(str);
            case "UInt8":  
                string uint8 = int.Parse(payload.Deca).ToString("X");
                return ByteArrayExtensions.ToHexString(new byte[1] { Convert.ToByte(uint8) });
            case "HartUnitCode": 
                var hartUnitCode = (byte)propValue;
                return ByteArrayExtensions.ToHexString(new byte[1] { Convert.ToByte(hartUnitCode) });
            case "Byte[]":
                return ByteArrayExtensions.ToHexString((byte[])propValue); ;
            case "UInt16":
                byte[] uint16 = ByteArrayExtensions.ToByteArray(UInt16.Parse(payload.Deca));
                return ByteArrayExtensions.ToHexString(uint16);
            case "UInt24":
                byte[] uint24 = ByteArrayExtensions.ToByteArray(UInt24.Parse(payload.Deca));
                return ByteArrayExtensions.ToHexString(uint24);
            case "UInt32":
                byte[] uint32 = ByteArrayExtensions.ToByteArray(UInt32.Parse(payload.Deca));
                return ByteArrayExtensions.ToHexString(uint32);
            case "HartDate":
                byte[] hartHartDate = HartDate.ToByteArray(new HartDate(payload.Deca));
                return ByteArrayExtensions.ToHexString(hartHartDate);
            case "Byte":
                byte[] buf = new byte[1] { byte.Parse(payload.Deca) };
                return ByteArrayExtensions.ToHexString(buf);
            case "PackedAscii":
                byte[] packedascii = PackedAscii.ToByteArray((PackedAscii)payload.Deca);
                return ByteArrayExtensions.ToHexString(packedascii);
            case "HartTime":
                byte[] hartTime = HartTime.ToByteArray(new HartTime(payload.Deca));
                return ByteArrayExtensions.ToHexString(hartTime);
            case "Single":
                float flt;
                if (propValue.GetType().Name == "String")
                {
                    flt = float.Parse((string)propValue);
                }
                else
                {
                    flt = (float)propValue;
                }
                return ByteArrayExtensions.ToHexString(ByteArrayExtensions.ToByteArray(flt));
            default:
                return string.Empty;
        }