/// <summary>
/// Reads the CSV.
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <param name="fileSchema">The file schema.</param>
/// <param name="count">The maximal count of readed rows.</param>
/// <returns>The two dimensional string list parsed from the csv file.</returns>
/// <remarks>Documented by Dev05, 2007-08-31</remarks>
public static List <List <string> > ReadCSV(string fileName, FileSchema fileSchema, int count)
{
if (fileSchema == null)
{
throw new ArgumentNullException();
}
List <List <string> > data = new List <List <string> >();
using (StreamReader stream = new StreamReader(fileName, fileSchema.Encoding))
{
//swallow the first line (headers) - CsvReader has a problem with multiple headers with the same name
if (fileSchema.hasHeaders && !stream.EndOfStream)
{
stream.ReadLine();
}
//initialize the csvreader class and read out the values
CsvReader csv = new CsvReader(stream, false, fileSchema.Delimiter, fileSchema.Quote, fileSchema.Escape, fileSchema.Comment, fileSchema.trimSpaces);
csv.DefaultParseErrorAction = ParseErrorAction.AdvanceToNextLine;
csv.MissingFieldAction = MissingFieldAction.ReplaceByEmpty;
csv.SupportsMultiline = false;
int fieldCount = csv.FieldCount;
try
{
while (csv.ReadNextRecord() && csv.CurrentRecordIndex < count)
{
List <string> row = new List <string>();
for (int i = 0; i < fieldCount; i++)
{
//[ML-968] Remove control characters and add field to row
row.Add(System.Text.RegularExpressions.Regex.Replace(csv[i], @"[\p{C}]", string.Empty, System.Text.RegularExpressions.RegexOptions.IgnoreCase));
}
data.Add(row);
}
}
catch { throw; }
finally
{
if (stream != null)
{
stream.Close();
}
}
}
return(data);
}
/// <summary>
/// Reads the CSV.
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <param name="fileSchema">The file schema.</param>
/// <returns>The two dimensional string list parsed from the csv file.</returns>
/// <remarks>Documented by Dev05, 2007-08-31</remarks>
public static List <List <string> > ReadCSV(string fileName, FileSchema fileSchema)
{
return(ReadCSV(fileName, fileSchema, int.MaxValue));
}
/// <summary>
/// Reads the CSV.
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <param name="fileSchema">The file schema.</param>
/// <returns>The two dimensional string list parsed from the csv file.</returns>
/// <remarks>Documented by Dev05, 2007-08-31</remarks>
public static List<List<string>> ReadCSV(string fileName, FileSchema fileSchema)
{
return ReadCSV(fileName, fileSchema, int.MaxValue);
}
/// <summary>
/// Reads the CSV.
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <param name="fileSchema">The file schema.</param>
/// <param name="count">The maximal count of readed rows.</param>
/// <returns>The two dimensional string list parsed from the csv file.</returns>
/// <remarks>Documented by Dev05, 2007-08-31</remarks>
public static List<List<string>> ReadCSV(string fileName, FileSchema fileSchema, int count)
{
if (fileSchema == null)
throw new ArgumentNullException();
List<List<string>> data = new List<List<string>>();
using (StreamReader stream = new StreamReader(fileName, fileSchema.Encoding))
{
//swallow the first line (headers) - CsvReader has a problem with multiple headers with the same name
if (fileSchema.hasHeaders && !stream.EndOfStream)
stream.ReadLine();
//initialize the csvreader class and read out the values
CsvReader csv = new CsvReader(stream, false, fileSchema.Delimiter, fileSchema.Quote, fileSchema.Escape, fileSchema.Comment, fileSchema.trimSpaces);
csv.DefaultParseErrorAction = ParseErrorAction.AdvanceToNextLine;
csv.MissingFieldAction = MissingFieldAction.ReplaceByEmpty;
csv.SupportsMultiline = false;
int fieldCount = csv.FieldCount;
try
{
while (csv.ReadNextRecord() && csv.CurrentRecordIndex < count)
{
List<string> row = new List<string>();
for (int i = 0; i < fieldCount; i++)
//[ML-968] Remove control characters and add field to row
row.Add(System.Text.RegularExpressions.Regex.Replace(csv[i], @"[\p{C}]", string.Empty, System.Text.RegularExpressions.RegexOptions.IgnoreCase));
data.Add(row);
}
}
catch { throw; }
finally
{
if (stream != null)
stream.Close();
}
}
return data;
}
/// <summary>
/// Generates the file schema for the csv parser.
/// </summary>
/// <returns>The Fileschema.</returns>
/// <remarks>Documented by Dev02, 2007-12-14</remarks>
private FileSchema GenerateFileSchema()
{
FileSchema fileSchema = new FileSchema();
fileSchema.Encoding = ((EncodingWrapper)comboBoxCharset.SelectedItem).Encoding;
fileSchema.hasHeaders = checkBoxHeader.Checked;
char delimiter;
switch (cmbFileFormat.SelectedIndex)
{
case 1:
delimiter = ';';
break;
case 2:
delimiter = '\t';
break;
case 3:
default:
delimiter = ',';
break;
}
fileSchema.Delimiter = delimiter;
return fileSchema;
}
