protected virtual void SequenceChange
(
object sender,
DAE.Runtime.Data.Row fromRow,
DAE.Runtime.Data.Row toRow,
bool above,
EventArgs args
)
{
SequenceColumnUtility.SequenceChange(HostNode.Session, Source, _shouldEnlist, fromRow, toRow, above, _script);
}
/// <remarks> Performs the search. </remarks>
protected override void InternalExecute(INode sender, EventParams paramsValue)
{
if ((Source != null) && (Source.DataView != null))
{
DAE.Schema.Order saveOrder = null;
if ((Source.Order == null) || (Source.Order.Columns.Count != 1) || (Source.Order.Columns[0].Column.Name != _columnName))
{
saveOrder = Source.Order;
Source.OrderString = String.Format("order {{ {0} }}", _columnName);
}
try
{
DAE.Schema.RowType rowType = new DAE.Schema.RowType();
rowType.Columns.Add(new DAE.Schema.Column(_columnName, (Source.DataView.TableType.Columns[_columnName]).DataType));
using (DAE.Runtime.Data.Row row = new DAE.Runtime.Data.Row(Source.DataView.Process.ValueManager, rowType))
{
((DAE.Runtime.Data.Scalar)row.GetValue(_columnName)).AsString = _value;
if (Mode == FindActionMode.Nearest)
{
Source.DataView.FindNearest(row);
}
else
{
bool found = Source.DataView.FindKey(row);
if (!found && (Mode == FindActionMode.ExactOnly))
{
throw new ClientException(ClientException.Codes.ValueNotFound, _value);
}
}
}
}
finally
{
if (saveOrder != null)
{
Source.Order = saveOrder;
}
}
}
}