private static object ToDouble(object value, BuiltInType sourceType)
{
// check for array conversions.
Array array = value as Array;
if (array != null)
{
double[] output = new double[array.Length];
for (int ii = 0; ii < array.Length; ii++)
{
output[ii] = (double)Cast(array.GetValue(ii), BuiltInType.Double);
}
return output;
}
// handle for supported conversions.
switch (sourceType)
{
case BuiltInType.Double:
{
return (double)value;
}
case BuiltInType.Boolean: return Convert.ToDouble((bool)value);
case BuiltInType.SByte: return Convert.ToDouble((sbyte)value);
case BuiltInType.Byte: return Convert.ToDouble((byte)value);
case BuiltInType.Int16: return Convert.ToDouble((short)value);
case BuiltInType.UInt16: return Convert.ToDouble((ushort)value);
case BuiltInType.Int32: return Convert.ToDouble((int)value);
case BuiltInType.UInt32: return Convert.ToDouble((uint)value);
case BuiltInType.Int64: return Convert.ToDouble((long)value);
case BuiltInType.UInt64: return Convert.ToDouble((ulong)value);
case BuiltInType.Float: return Convert.ToDouble((float)value);
case BuiltInType.String:
{
return XmlConvert.ToDouble((string)value);
}
}
// conversion not supported.
return DBNull.Value;
}