public void OpenAndClose()
{
CsvDataReader reader = new CsvDataReader(@"..\..\SimpleCsv.txt");
Assert.AreEqual(reader.IsClosed, false);
reader.Close();
Assert.AreEqual(reader.IsClosed, true);
reader.Dispose();
}
public void ReadAllRows()
{
CsvDataReader reader = new CsvDataReader(@"..\..\SimpleCsv.txt");
while (reader.Read())
{
}
reader.Close();
reader.Dispose();
}
public void MoveFileUsing()
{
using (CsvDataReader reader = new CsvDataReader(@"..\..\MoveCsv.txt"))
{
Assert.AreEqual(reader.IsClosed, false);
reader.Close();
Assert.AreEqual(reader.IsClosed, true);
}
File.Move(@"..\..\MoveCsv.txt", @"..\..\MoveCsvTemp.txt");
File.Move(@"..\..\MoveCsvTemp.txt", @"..\..\MoveCsv.txt");
}
public void AddStaticValue()
{
Dictionary <String, String> staticColumns = new Dictionary <String, String>();
staticColumns.Add("Column1", "Value");
CsvDataReader reader = new CsvDataReader(@"..\..\SimpleCsv.txt", staticColumns);
Assert.AreEqual(3, reader.GetOrdinal("Column1"));
while (reader.Read())
{
Assert.AreEqual("Value", reader.GetValue(reader.GetOrdinal("Column1")));
}
reader.Close();
reader.Dispose();
}
public override DataTable ToDataTable(DataTableConvertParams context, Stream stream)
{
if (context == null)
{
context = new DataTableConvertParams();
}
StreamReader sr = new StreamReader(stream);
DataTable dt = new DataTable();
if (context.RecordDelim != '\n')
{
#region If Record Delimiter is overriden, itterate through all characters and replace them with new line
//https://stackoverflow.com/questions/1232443/writing-to-then-reading-from-a-memorystream
MemoryStream ms = new MemoryStream();
StreamWriter sw = new StreamWriter(ms);
while (sr.Peek() >= 0)
{
Char c = (Char)sr.Read();
if (c == context.RecordDelim)
{
sw.Write('\n');
}
else
{
sw.Write(c);
}
}
sw.Flush();
ms.Position = 0;
sr = new StreamReader(ms, Encoding.UTF8);
#endregion If Record Delimiter is overriden, itterate through all characters and replace them with new line
}
//_conf.BadDataFound = cxt =>
//{
//For debugging (put breakpoints here)
//};
_conf.Delimiter = context.FieldDelim.ToString();
if (_conf.Delimiter != ",")
{
_conf.IgnoreQuotes = true;
}
_conf.HasHeaderRecord = context.HasHeaders;
_conf.MissingFieldFound = null;
CsvReader csvReader = new CsvReader(sr, _conf);
CsvDataReader dataReader = new CsvDataReader(csvReader);
if (!context.HasHeaders)
{
#region If No Headers loop through all records and add columns as columns are found
while (dataReader.Read())
{
while (dt.Columns.Count < dataReader.FieldCount)
{
dt.Columns.Add($"Col{dt.Columns.Count}");
}
DataRow row = dt.NewRow();
for (int i = 0; i < dataReader.FieldCount; i++)
{
row[i] = dataReader.GetValue(i);
}
dt.Rows.Add(row);
}
dataReader.Close();
sr.Close();
#endregion If No Headers loop through all records and add columns as columns are found
}
else
{
#region If there are headers DataTable.Load will suffice
try
{
dt.Load(dataReader, LoadOption.Upsert);
}
catch (Exception ex)
{
throw ex;
}
finally
{
dataReader.Close();
sr.Close();
}
#endregion If there are headers DataTable.Load will suffice
}
//CsvHelper seems to make DataTable Columns readonly
foreach (DataColumn dc in dt.Columns)
{
dc.ReadOnly = false;
}
return(dt);
}
