public static DataTableProducer FromCsvString(CompareBuilderOptions options, TextReader reader)
{
return(new DataTableProducer(options, new Action <DataTable>(dt =>
{
DataTableSerializer.FromTextReader(dt, reader);
})));
}
public static DataTableProducer FromQuery(CompareBuilderOptions options)
{
return(new DataTableProducer(options, new Action <DataTable>(dt =>
{
Fill(dt, options.Query, options.ConnectionString);
})));
}
public static DataTableProducer FromCsvFile(CompareBuilderOptions options)
{
return(new DataTableProducer(options, new Action <DataTable>(dt =>
{
using (var reader = File.OpenText(options.Query))
{
DataTableSerializer.FromTextReader(dt, reader);
}
})));
}
public static DataTableProducer FromDataTable(CompareBuilderOptions options)
{
return(new DataTableProducer(options, new Action <DataTable>(dt =>
{
foreach (DataColumn col in options.DataTable.Columns)
{
dt.Columns.Add(new DataColumn(col.ColumnName));
}
foreach (DataRow row in options.DataTable.Rows)
{
var nRow = dt.NewRow();
nRow.ItemArray = row.ItemArray;
dt.Rows.Add(nRow);
}
//dt = options.DataTable;
})));
}
public static DataTableProducer Create(CompareBuilderOptions options)
{
switch (options.InputType)
{
case InputTypes.Query:
return(DataTableProducer.FromQuery(options));
case InputTypes.CsvFile:
return(DataTableProducer.FromCsvFile(options));
case InputTypes.DataTable:
return(DataTableProducer.FromDataTable(options));
default:
throw new ArgumentException("Unimplemented argument for InputType");
}
}
private DataTableProducer(CompareBuilderOptions options, Action <DataTable> func)
{
this.Options = options;
this.Callback = func;
}