public static DataMatrixBuilder Create <T>(IReadOnlyList <T> values, string[] columnHeaders,
params Func <T, object>[] valueSelectors)
{
Debug.Assert(columnHeaders.Length == valueSelectors.Length);
if (columnHeaders.Length != valueSelectors.Length)
{
throw new DataMatrixException($"Column headers '{columnHeaders.Length}' not equal to valueSelectors '{valueSelectors.Length}'");
}
var result = new DataMatrixBuilder
{
_columnHeaders = columnHeaders,
_arrValues = new object[values.Count, valueSelectors.Length],
_dependentColumns = new List <DataMatrixColumn>()
};
// Fill table rows
for (int rowIndex = 0; rowIndex < result._arrValues.GetLength(0); rowIndex++)
{
for (int colIndex = 0; colIndex < result._arrValues.GetLength(1); colIndex++)
{
result._arrValues[rowIndex, colIndex] = valueSelectors[colIndex]
.Invoke(values[rowIndex]);
}
}
return(result);
}
public static DataMatrixBuilder Create(DataTable table, params string[] columns)
{
if (columns == null || columns.Length < 1)
{
columns = (from DataColumn c in table.Columns select c.ColumnName).ToArray();
}
else
{
DataColumnCollection collection = table.Columns;
foreach (var column in columns)
{
if (!collection.Contains(column))
{
throw new ColumnNotFoundException(column);
}
}
}
var result = new DataMatrixBuilder
{
_columnHeaders = columns,
_arrValues = new object[table.Rows.Count, columns.Length],
_dependentColumns = new List <DataMatrixColumn>()
};
var colIndexes = columns.Select(c => table.Columns[c].Ordinal).ToArray();
// Fill table rows
for (var rowIndex = 0; rowIndex < result._arrValues.GetLength(0); rowIndex++)
{
for (var colIndex = 0; colIndex < colIndexes.Length; colIndex++)
{
result._arrValues[rowIndex, colIndex] = table.Rows[rowIndex][colIndexes[colIndex]];
}
}
return(result);
}
