/// <summary>
/// Routine to copy data from a delimited data text file to an ADO.NET DataTable object.
/// </summary>
/// <param name="dataFileName">Path to file containing the data.</param>
/// <param name="lineDefFileName">Path to file containing the PFDelimitedDataLine object that encapsulates the line formatting information for the specified data file.</param>
/// <returns>ADO.NET DataTable.</returns>
public DataTable ImportDelimitedTextFileToDataTable(string dataFileName, string lineDefFileName)
{
PFDelimitedDataLine lineDef = PFDelimitedDataLine.LoadFromXmlFile(lineDefFileName);
return(ImportDelimitedTextFileToDataTable(dataFileName, lineDef));
}
public static void DelimitedLineTextFileTests(int numRowsToOutput)
{
PFTextFile textFile = new PFTextFile(@"c:\temp\DelimitedText.txt", PFFileOpenOperation.OpenFileForWrite);
PFDelimitedDataLine line = new PFDelimitedDataLine(5);
RandomString dat = new RandomString();
RandomNumber siz = new RandomNumber();
int num = 0;
string str = string.Empty;
try
{
line.LineTerminator = "\r\n";
line.ColumnSeparator = ",";
line.SetColumnDefinition(0, "FirstColumn", 10);
line.SetColumnDefinition(1, "SecondColumn", 15);
line.SetColumnDefinition(2, "ColumnThree", 5);
line.SetColumnDefinition(3, "ColumnFour", 35);
line.SetColumnDefinition(4, "FifthColumn", 25);
textFile.WriteData(line.OutputColumnNames());
for (int rowNum = 0; rowNum < numRowsToOutput; rowNum++)
{
for (int inx = 0; inx < 5; inx++)
{
num = siz.GenerateRandomInt(1, line.ColumnDefinitions.ColumnDefinition[inx].ColumnLength);
str = dat.GetStringAL(num);
line.ColumnData.ColumnDataValue[inx].Data = str;
}
textFile.WriteData(line.OutputColumnData());
}
textFile.CloseFile();
line.SaveToXmlFile(@"c:\temp\DelimitedText.xml");
//read textfile
textFile.OpenFile(@"c:\temp\DelimitedText.txt", PFFileOpenOperation.OpenFileToRead);
string input = textFile.ReadLine();
line.VerifyColumnNames(input);
Program._messageLog.WriteLine(line.ColumnDefinitions.ToString());
input = textFile.ReadLine();
line.ParseData(input);
Program._messageLog.WriteLine(line.ColumnData.ToString());
textFile.CloseFile();
//double check loading of xml schema works
PFDelimitedDataLine line2 = PFDelimitedDataLine.LoadFromXmlFile(@"c:\temp\DelimitedText.xml");
Program._messageLog.WriteLine(line2.ToXmlString());
PFTextFile textFile2 = new PFTextFile(@"c:\temp\DelimitedText2.txt", PFFileOpenOperation.OpenFileForWrite);
char[] tst = { 'a', 'b', 'c', 'd', 'e' };
//line2.LineTerminator = "\r\n";
line2.ColumnSeparator = ",";
line2.SetColumnDefinition(0, "Column One", 10);
line2.SetColumnDefinition(1, "2ndColumn", 15);
line2.SetColumnDefinition(2, "Column Three", 5);
line2.SetColumnDefinition(3, "Column Four", 35);
line2.SetColumnDefinition(4, "5thColumn", 25);
textFile2.WriteData(line2.OutputColumnNames());
for (int rowNum = 0; rowNum < numRowsToOutput; rowNum++)
{
for (int inx = 0; inx < 5; inx++)
{
num = siz.GenerateRandomInt(1, line2.ColumnDefinitions.ColumnDefinition[inx].ColumnLength);
str = new string(tst[inx], num);
line2.ColumnData.ColumnDataValue[inx].Data = str;
}
textFile2.WriteData(line2.OutputColumnData());
}
textFile2.CloseFile();
}
catch (System.Exception ex)
{
_msg.Length = 0;
_msg.Append(AppGlobals.AppMessages.FormatErrorMessage(ex));
Program._messageLog.WriteLine(_msg.ToString());
AppMessages.DisplayErrorMessage(_msg.ToString(), _saveErrorMessagesToAppLog);
}
finally
{
if (textFile != null)
{
textFile = null;
}
;
}
}//end DelimitedLineTextFileTests