internal void ConstraintIndexClear()
{
if (null != _constraintIndex)
{
_constraintIndex.RemoveRef();
_constraintIndex = null;
}
}
internal void UnregisterListChangedEvent()
{
Index index = _index;
_index = null;
if (index != null)
{
lock (index) {
index.ListChangedRemove(this);
if (index.RemoveRef() <= 1)
{
index.RemoveRef();
}
}
}
}
internal void MergeRows(DataRow[] rows)
{
DataTable dst = null;
DataTable src = null;
DataKey srcKey = new DataKey();
Index ndx = null;
bool enforceConstraints = this.dataSet.EnforceConstraints;
this.dataSet.EnforceConstraints = false;
for (int i = 0; i < rows.Length; i++)
{
DataRow row = rows[i];
if (row == null)
{
throw ExceptionBuilder.ArgumentNull("rows[" + i + "]");
}
if (row.Table == null)
{
throw ExceptionBuilder.ArgumentNull("rows[" + i + "].Table");
}
if (row.Table.DataSet != this.dataSet)
{
if (src != row.Table)
{
src = row.Table;
dst = this.MergeSchema(row.Table);
if (dst == null)
{
this.dataSet.EnforceConstraints = enforceConstraints;
return;
}
if (dst.primaryKey != null)
{
srcKey = this.GetSrcKey(src, dst);
}
if (srcKey.HasValue)
{
if (ndx != null)
{
ndx.RemoveRef();
ndx = null;
}
ndx = new Index(dst, dst.primaryKey.Key.GetIndexDesc(), DataViewRowState.OriginalRows | DataViewRowState.Added, null);
ndx.AddRef();
ndx.AddRef();
}
}
if ((row.newRecord != -1) || (row.oldRecord != -1))
{
DataRow targetRow = null;
if ((0 < dst.Rows.Count) && (ndx != null))
{
targetRow = dst.FindMergeTarget(row, srcKey, ndx);
}
targetRow = dst.MergeRow(row, targetRow, this.preserveChanges, ndx);
if ((targetRow.Table.dependentColumns != null) && (targetRow.Table.dependentColumns.Count > 0))
{
targetRow.Table.EvaluateExpressions(targetRow, DataRowAction.Change, null);
}
}
}
}
if (ndx != null)
{
ndx.RemoveRef();
ndx = null;
}
this.dataSet.EnforceConstraints = enforceConstraints;
}
internal void MergeRows(DataRow[] rows)
{
DataTable src = null;
DataTable dst = null;
DataKey key = default(DataKey);
Index ndxSearch = null;
bool fEnforce = dataSet.EnforceConstraints;
dataSet.EnforceConstraints = false;
for (int i = 0; i < rows.Length; i++)
{
DataRow row = rows[i];
if (row == null)
{
throw ExceptionBuilder.ArgumentNull("rows[" + i + "]");
}
if (row.Table == null)
{
throw ExceptionBuilder.ArgumentNull("rows[" + i + "].Table");
}
//somebody is doing an 'automerge'
if (row.Table.DataSet == dataSet)
{
continue;
}
if (src != row.Table) // row.Table changed from prev. row.
{
src = row.Table;
dst = MergeSchema(row.Table);
if (dst == null)
{
Debug.Assert(MissingSchemaAction.Ignore == missingSchemaAction, "MergeSchema failed");
dataSet.EnforceConstraints = fEnforce;
return;
}
if (dst.primaryKey != null)
{
key = GetSrcKey(src, dst);
}
if (key.HasValue)
{
// Getting our own copy instead. ndxSearch = dst.primaryKey.Key.GetSortIndex();
// IMO, Better would be to reuse index
// ndxSearch = dst.primaryKey.Key.GetSortIndex(DataViewRowState.OriginalRows | DataViewRowState.Added );
if (null != ndxSearch)
{
ndxSearch.RemoveRef();
ndxSearch = null;
}
ndxSearch = new Index(dst, dst.primaryKey.Key.GetIndexDesc(), DataViewRowState.OriginalRows | DataViewRowState.Added, (IFilter)null);
ndxSearch.AddRef(); // need to addref twice, otherwise it will be collected
ndxSearch.AddRef(); // in past first adref was done in const
}
}
if (row.newRecord == -1 && row.oldRecord == -1)
{
continue;
}
DataRow targetRow = null;
if (0 < dst.Rows.Count && ndxSearch != null)
{
targetRow = dst.FindMergeTarget(row, key, ndxSearch);
}
targetRow = dst.MergeRow(row, targetRow, preserveChanges, ndxSearch);
if (targetRow.Table.dependentColumns != null && targetRow.Table.dependentColumns.Count > 0)
{
targetRow.Table.EvaluateExpressions(targetRow, DataRowAction.Change, null);
}
}
if (null != ndxSearch)
{
ndxSearch.RemoveRef();
ndxSearch = null;
}
dataSet.EnforceConstraints = fEnforce;
}
