BrightIdeasSoftware.ObjectListView.SaveState C# (CSharp) Method

        public virtual byte[] SaveState()
        {
            ObjectListViewState olvState = new ObjectListViewState();
            olvState.VersionNumber = 1;
            olvState.NumberOfColumns = this.AllColumns.Count;
            olvState.CurrentView = this.View;

            // If we have a sort column, it is possible that it is not currently being shown, in which
            // case, it's Index will be -1. So we calculate its index directly. Technically, the sort
            // column does not even have to a member of AllColumns, in which case IndexOf will return -1,
            // which is works fine since we have no way of restoring such a column anyway.
            if (this.LastSortColumn != null)
                olvState.SortColumn = this.AllColumns.IndexOf(this.LastSortColumn);
            olvState.LastSortOrder = this.LastSortOrder;
            olvState.IsShowingGroups = this.ShowGroups;

            if (this.AllColumns.Count > 0 && this.AllColumns[0].LastDisplayIndex == -1)
                this.RememberDisplayIndicies();

            foreach (OLVColumn column in this.AllColumns) {
                olvState.ColumnIsVisible.Add(column.IsVisible);
                olvState.ColumnDisplayIndicies.Add(column.LastDisplayIndex);
                olvState.ColumnWidths.Add(column.Width);
            }

            // Now that we have stored our state, convert it to a byte array
            using (MemoryStream ms = new MemoryStream()) {
                BinaryFormatter serializer = new BinaryFormatter();
                serializer.AssemblyFormat = FormatterAssemblyStyle.Simple;
                serializer.Serialize(ms, olvState);
                return ms.ToArray();
            }
        }