static public object ConvertFromDLMS(object data, DataType from, DataType type, bool arrayAsString)
{
if (type == DataType.Array)
{
return(data);
}
if (type == DataType.None)
{
if (arrayAsString && data != null && data.GetType().IsArray)
{
data = GXHelpers.GetArrayAsString(data);
}
return(data);
}
//Show Octet string...
if (from == DataType.OctetString && type == DataType.OctetString)
{
if (data is byte[])
{
string str = "";
byte[] arr = (byte[])data;
if (arr.Length == 0)
{
data = string.Empty;
}
else
{
foreach (byte it in arr)
{
str += it.ToString() + ".";
}
data = str.Substring(0, str.Length - 1);
}
}
}
//Convert DLMS octect string to Windows string.
else if (from == DataType.OctetString && type == DataType.String)
{
if (data is string)
{
return(data);
}
else if (data is byte[])
{
byte[] arr = (byte[])data;
data = System.Text.Encoding.ASCII.GetString(arr);
}
}
//Convert DLMS date time to Windows Time.
else if (type == DataType.DateTime)
{
if (data is byte[])
{
if (((byte[])data).Length == 5)
{
return(GXDLMSClient.ChangeType((byte[])data, DataType.Date));
}
return(GXDLMSClient.ChangeType((byte[])data, DataType.DateTime));
}
return(data);
}
//Convert DLMS date time to Windows Date.
else if (type == DataType.Date)
{
if (data is DateTime)
{
return(data);
}
if (data is string)
{
return(data);
}
if (!data.GetType().IsArray || ((Array)data).Length < 5)
{
throw new Exception("DateTime conversion failed. Invalid DLMS format.");
}
return(GXDLMSClient.ChangeType((byte[])data, DataType.Date));
}
//Convert DLMS date time to Windows Time.
else if (type == DataType.Time)
{
if (data is byte[])
{
return(GXDLMSClient.ChangeType((byte[])data, type));
}
return(data);
}
else if (data is byte[])
{
if (type == DataType.String)
{
data = System.Text.Encoding.ASCII.GetString((byte[])data);
}
else
{
data = ToHexString(data);
}
}
else if (data is Array)
{
data = ArrayToString(data);
}
return(data);
}