/// <summary>
/// Try to get the AI at the current position
/// </summary>
/// <param name="data">The row data from the scanner</param>
/// <param name="index">The refrence of the current position</param>
/// <param name="usePlaceHolder">Sets if the last character of the AI should replaced with a placehoder ("d")</param>
/// <returns>The current AI or null if no match was found</returns>
private static AII GetAI(string data, ref int index, bool usePlaceHolder = false)
{
AII result = null;
// Step through the different lenghts of the AIs
for (int i = minLengthOfAI; i <= maxLengthOfAI; i++)
{
// get the AI sub string
string ai = data.Substring(index, i);
if (usePlaceHolder)
{
ai = ai.Remove(ai.Length - 1) + "d";
}
// try to get the ai from the dictionary
if (aiiDict.TryGetValue(ai, out result))
{
// Shift the index to the next
index += i;
return(result);
}
// if no AI found, try it with the next lenght
}
// if no AI found here, than try it with placeholders. Assumed that is the first sep where usePlaceHolder is false
if (!usePlaceHolder)
{
result = GetAI(data, ref index, true);
}
return(result);
}
public AII getAiInfo(String pAi)
{
AII naii = new AII();
if (pAi == "01")
{
naii.AICode = "01";
naii.minLength = 8;
naii.maxLength = 14; // was 14
return(naii);
}
if (pAi == "17")
{
naii.AICode = "17";
naii.minLength = 6;
naii.maxLength = 6;
return(naii);
}
if (pAi == "10")
{
naii.AICode = "10";
naii.minLength = 1;
naii.maxLength = 20;
}
if (pAi == "21")
{
naii.AICode = "21";
naii.minLength = 1;
naii.maxLength = 20;
return(naii);
}
return(naii);
}
public AII(AII ai)
{
this.AICode = ai.AICode;
this.AIDesc = ai.AIDesc;
this.minLength = ai.minLength;
this.maxLength = ai.maxLength;
this.type = ai.type;
this.AIValue = ai.AIValue;
}
/// <summary>
/// Get the current code to the AI
/// </summary>
/// <param name="data">The row data from the scanner</param>
/// <param name="ai">The current AI</param>
/// <param name="index">The refrence of the current position</param>
/// <returns>the data to the current AI</returns>
private static string GetCode(string data, AII ai, ref int index)
{
var result = string.Empty;
// get the max lenght to read.
int lengthToRead = Math.Min(ai.LengthOfData, data.Length - index);
if (index > data.Length || index + lengthToRead > data.Length)
{
return(result);
}
// get the data of the current AI
result = data.Substring(index, lengthToRead);
// check if the AI support a group seperator
if (ai.FNC1)
{
// try to find the index of the group seperator
int indexOfGroupTermination = result.IndexOf(GroupSeparator);
if (indexOfGroupTermination >= 0)
{
lengthToRead = indexOfGroupTermination;
}
// get the data of the current AI till the gorup seperator
result = data.Substring(index, lengthToRead);
// Shift the index to the next
index += lengthToRead + 1;
}
else
{
// Shift the index to the next
index += lengthToRead;
}
return(result);
}
/// <summary>
/// Add an Application Identifier (AI)
/// </summary>
/// <param name="AI">Number of the AI</param>
/// <param name="Description"></param>
/// <param name="LengthOfAI"></param>
/// <param name="DataDescription">The type of the content</param>
/// <param name="LengthOfData">The max lenght of the content</param>
/// <param name="FNC1">Support a group seperator</param>
public static void Add(string AI, string Description, int LengthOfAI, DataType DataDescription, int LengthOfData, bool FNC1)
{
aiiDict[AI] = new AII(AI, Description, LengthOfAI, DataDescription, LengthOfData, FNC1);
}
public void GS1DataConvert(string pBarcode)
{
String aiFull = "";
String aiWCheckSum = "";
String aiValue = "";
// Int32 aiCheckSum = 0;
Int32 aiMinLength = 0;
Int32 aiMaxLength = 0;
int index = 0;
if (pBarcode.Contains("01"))
{
index = pBarcode.IndexOf("01") + 2;
AII sai = getAiInfo("01");
aiMinLength = sai.minLength;
aiMaxLength = sai.maxLength;
aiFull = pBarcode.Substring(index - 2, aiMaxLength + 2);
aiWCheckSum = pBarcode.Substring(index, aiMaxLength);
aiValue = aiWCheckSum.Remove(aiWCheckSum.Length - 1, 1);
//aiCheckSum = Int32.Parse(aiWCheckSum.Substring(aiWCheckSum.Length - 1, 1));
// if (checkSum(aiValue, aiCheckSum))
// {
pBarcode = pBarcode.Replace(aiFull, String.Empty);
BarcodeDecodeDictionary.Add("01", aiWCheckSum);
//}
}
if (pBarcode.Contains("17"))
{
index = pBarcode.IndexOf("17") + 2;
AII sai = getAiInfo("17");
aiFull = pBarcode.Substring(index - 2, sai.minLength + 2);
aiValue = pBarcode.Substring(index, sai.minLength);
//if (checkDate(aiValue) > DateTime.MinValue)
//{
//}
pBarcode = pBarcode.Replace(aiFull, String.Empty);
BarcodeDecodeDictionary.Add("17", aiValue);
}
if (pBarcode.Contains("10"))
{
index = pBarcode.IndexOf("10") + 2;
AII sai = getAiInfo("10");
aiMinLength = sai.minLength;
aiMaxLength = sai.maxLength;
aiMaxLength = pBarcode.Length < sai.maxLength ? pBarcode.Length - 2 : sai.maxLength;
aiFull = pBarcode.Substring(index - 2, aiMaxLength + 2);
aiValue = pBarcode.Substring(index, aiMaxLength);
pBarcode = pBarcode.Replace(aiFull, String.Empty);
BarcodeDecodeDictionary.Add("10", aiValue);
//BarcodeDecodeDictionary.Add("10", aiFull);
}
if (pBarcode.Contains("21"))
{
index = pBarcode.IndexOf("21") + 2;
AII sai = getAiInfo("21");
aiMinLength = sai.minLength;
aiMaxLength = pBarcode.Length < sai.maxLength ? pBarcode.Length - 2 : sai.maxLength;
aiFull = pBarcode.Substring(index - 2, aiMaxLength);
aiValue = pBarcode.Substring(index, aiMaxLength);
BarcodeDecodeDictionary.Add("21", aiValue);
}
}