private void SelDelOfSingleRow(DDocRow row)
{
if (row.SelectedMembers.Count == row.MemberCount())
{
if (row.Equals(FirstRow))
{
row.FirstMember = null;
row.LastMember = null;
CurrentRow = row;
CurrentRow.CurrentMember = null;
}
else
{
RemoveRow(row);
CurrentRow = row.PreDocRow ?? FirstRow;
CurrentRow.CurrentMember = CurrentRow.LastMember ?? CurrentRow.FirstMember;
}
}
else
{
CurrentRow = row;
if (row.SelectedMembers.Count == 0) return;
var beginMember = row.SelectedMembers[0];
var endMember = row.SelectedMembers[row.SelectedMembers.Count - 1];
if (beginMember.PreMember != null)
{
beginMember.PreMember.NextMember = endMember.NextMember;
if (endMember.NextMember != null)
{
endMember.NextMember.PreMember = beginMember.PreMember;
}
else
{
CurrentRow.LastMember = beginMember.PreMember.Equals(CurrentRow.FirstMember)
? null
: beginMember.PreMember;
}
CurrentRow.CurrentMember = beginMember.PreMember;
}
else if (endMember.NextMember != null)
{
CurrentRow.FirstMember = endMember.NextMember;
var tailMember = endMember.GetTailMember();
CurrentRow.LastMember = tailMember.Equals(endMember.NextMember) ? null : tailMember;
CurrentRow.CurrentMember = null;
endMember.NextMember.PreMember = null;
}
}
}
private void RemoveRow(DDocRow row)
{
if (row == null) return;
var ownerDoc = row.OwnerDocument;
if (row.Equals(ownerDoc.FirstRow))
{
if (row.NextDocRow == null)
{
ownerDoc.FirstRow = null;
return;
}
else if (row.NextDocRow.Equals(ownerDoc.LastRow))
{
ownerDoc.FirstRow = row.NextDocRow;
ownerDoc.LastRow = null;
row.NextDocRow.PreDocRow = null;
row.NextDocRow = null;
return;
}
ownerDoc.FirstRow = row.NextDocRow;
row.NextDocRow.PreDocRow = null;
row.NextDocRow = null;
}
else if (row.Equals(ownerDoc.LastRow))
{
if (row.PreDocRow.Equals(ownerDoc.FirstRow))
{
row.PreDocRow.NextDocRow = null;
row.PreDocRow = null;
ownerDoc.LastRow = null;
return;
}
ownerDoc.LastRow = row.PreDocRow;
row.PreDocRow.NextDocRow = null;
row.PreDocRow = null;
}
else
{
if (row.PreDocRow != null)
row.PreDocRow.NextDocRow = row.NextDocRow;
if (row.NextDocRow != null)
row.NextDocRow.PreDocRow = row.PreDocRow;
row.PreDocRow = null;
row.NextDocRow = null;
}
}