/// <summary>
/// Initialize <see cref="LightDataColumn"/> from <see cref="DataColumn"/>
/// </summary>
/// <param name="column">Source column</param>
/// <param name="storage">Existing storage</param>
protected override void Initialize(DataColumn column, object storage)
{
if (Table.RowsCount > 0)
{
DbNullBits = new BitArray(Table.RowsCount);
_values = new Guid[Table.RowsCount];
var store = (object[])ValuesField.GetValue(storage);
bool hasNulls = false;
for (int i = 0; i < Table.RowsCount; ++i)
{
if (store[i] != null)
{
_values[i] = (Guid)store[i];
}
else
{
hasNulls = true;
DbNullBits.Set(i, true);
}
}
// memory usage optimization
if (!hasNulls)
{
DbNullBits = null;
}
}
}
/// <summary>
/// Initialize <see cref="LightDataColumn"/> from <see cref="DataColumn"/>
/// </summary>
/// <param name="column">Source column</param>
/// <param name="storage">Existing storage</param>
protected override void Initialize(DataColumn column, object storage)
{
if (Table.RowsCount > 0)
{
Array.Copy((Decimal[])ValuesField.GetValue(storage), _values = new Decimal[Table.RowsCount], Table.RowsCount);
}
}
/// <summary>
/// Initialize <see cref="LightDataColumn"/> from <see cref="DataColumn"/>
/// </summary>
/// <param name="column">Source column</param>
/// <param name="storage">Existing storage</param>
protected override void Initialize(DataColumn column, object storage)
{
if (Table.RowsCount > 0)
{
_values = new byte[Table.RowsCount][];
var source = (object[])ValuesField.GetValue(storage);
for (int i = 0; i < Table.RowsCount; ++i)
{
_values[i] = (byte[])source[i];
}
}
}