private void CreateDataTableColumns(DataTable dtData)
{
// Add in our column to store off the file line number.
if (this.m_blnIncludeFileLineNumber && (this.m_intCreatedColumns < 1))
{
dtData.Columns.Add(GenericParserAdapter.FILE_LINE_NUMBER);
}
for (int intColumnIndex = this.m_intCreatedColumns; intColumnIndex < this.m_lstColumnNames.Count; ++intColumnIndex, ++this.m_intCreatedColumns)
{
GenericParserAdapter.AddColumnToTable(dtData, this.m_lstColumnNames[intColumnIndex]);
}
}
/// <summary>
/// Generates a <see cref="DataTable"/> based on the data stored within
/// the entire data source after it was parsed.
/// </summary>
/// <returns>
/// The <see cref="DataTable"/> containing all of the data in the data
/// source.
/// </returns>
/// <exception cref="InvalidOperationException">
/// Attempting to read without properly setting up the <see cref="GenericParserAdapter"/>.
/// </exception>
/// <exception cref="ParsingException">
/// Thrown in the situations where the <see cref="GenericParserAdapter"/> cannot continue
/// due to a conflict between the setup and the data being parsed.
/// </exception>
/// <example>
/// <code lang="C#" escaped="true">
/// using (GenericParserAdapter p = new GenericParserAdapter(@"C:\MyData.txt"))
/// DataTable dtResults = p.GetDataTable();
/// </code>
/// </example>
public DataTable GetDataTable()
{
DataRow drRow;
DataTable dtData;
int intCreatedColumns, intSkipRowsAtEnd;
dtData = new DataTable();
dtData.BeginLoadData();
intCreatedColumns = 0;
while (this.Read())
{
// See if we have the appropriate number of columns.
if (this.m_lstColumnNames.Count > intCreatedColumns)
{
// Add in our column to store off the file line number.
if (this.m_blnIncludeFileLineNumber && (intCreatedColumns < 1))
{
dtData.Columns.Add(GenericParserAdapter.FILE_LINE_NUMBER);
}
for (int intColumnIndex = intCreatedColumns; intColumnIndex < this.m_lstColumnNames.Count; ++intColumnIndex, ++intCreatedColumns)
{
GenericParserAdapter.AddColumnToTable(dtData, this.m_lstColumnNames[intColumnIndex]);
}
}
if (!this.IsCurrentRowEmpty || !this.SkipEmptyRows)
{
drRow = dtData.NewRow();
if (this.m_blnIncludeFileLineNumber)
{
drRow[0] = this.FileRowNumber;
// Now, add in the data retrieved from the current row.
for (int intColumnIndex = 0; intColumnIndex < this.m_lstData.Count; ++intColumnIndex)
{
drRow[intColumnIndex + 1] = this.m_lstData[intColumnIndex];
}
}
else
{
// Since we don't have to account for the row number, just place the value right into the data row.
drRow.ItemArray = this.m_lstData.ToArray();
}
dtData.Rows.Add(drRow);
}
}
intSkipRowsAtEnd = this.m_intSkipEndingDataRows;
// Remove any rows at the end that need to be skipped.
while ((intSkipRowsAtEnd-- > 0) && (dtData.Rows.Count > 0))
{
dtData.Rows.RemoveAt(dtData.Rows.Count - 1);
}
dtData.EndLoadData();
return(dtData);
}
