Habanero.Faces.Win.GenericGridFilterControlWin.GenericGridFilterControlWin C# (CSharp) Method

        public GenericGridFilterControlWin(IGridBase grid)
        {
            var ds = grid.DataSource as DataView;
            if (ds != null) this._originalView = ds;
            (grid as DataGridView).DataSourceChanged += this.DataSourceChanged;

            this._lastForcedEvents = DateTime.Now;
            this.Grid = grid;
            this._timer = new Timer()
            {
                Enabled = true,
                Interval = 500,
            };
            this._timer.Tick += (sender, e) => 
            {
                if ((this._filterRequired) && (this._lastFilterChanged.AddMilliseconds(this._timer.Interval) < DateTime.Now))
                {
                    if (this._inFilter)
                        this._cancelCurrentFilter = true;
                    this._filterRequired = false;
                    this.DoFilter();
                }
            };

            var factory = new ControlFactoryWin();
            this._filterLabel = factory.CreateLabel("Filter:");
            this._filterTextBox = factory.CreateTextBox();
            var txt = this._filterTextBox as TextBox;
            txt.TextChanged += (sender, e) =>
                {
                    if (txt.Text == this._lastFilterText) return;
                    this._lastFilterChanged = DateTime.Now;
                    this._filterRequired = true;
                };
            var manager = factory.CreateBorderLayoutManager(this);
            manager.AddControl(this._filterLabel, BorderLayoutManager.Position.West);
            manager.AddControl(this._filterTextBox, BorderLayoutManager.Position.Centre);
            var vgap = manager.VerticalGapSize + manager.BorderSize;
            this.Height = this._filterTextBox.Height + 2 * vgap;

            this.FilterStarted += (sender, e) =>
                {
                    this.SetUIState(true);
                };
            this.FilterCompleted += (sender, e) =>
                {
                    this.SetUIState(false);
                };
            var wingrid = Grid as DataGridView;
            if (wingrid != null)
            {
                this._gridOriginalAlternatingStyle = wingrid.AlternatingRowsDefaultCellStyle;
                wingrid.AlternatingRowsDefaultCellStyleChanged += this.RecordGridAltStyle;
            }
        }