Hi all!

I wrote a usercontrol that contains a Tabcontrol. I need to dynamically add tabs and nested grids in the according tabpagecontrols. I managed to do that, but i have the problem to retrieve or alter the displaylayout settings after the datasource was assigned to the grid. If I do not try to manke changes to the displaylayout in the usercontrol and the control is shown on the form it works fine, but i need to change displaylayout settings. Where is the error in code, means, when can i set the displaylayout setting?

--code:

//Getting Data for tabs

            DST = Connect.GetDataSet(strSQLQuery);

            //clearing all tabs

            this.ultraTabControl1.Tabs.Clear();

            GridsToFormat = new Infragistics.Win.UltraWinGrid.UltraGrid[DST.Tables[0].Rows.Count];

            int i = 0;

            //Create Tab for each row

            foreach (System.Data.DataRow Rwo in DST.Tables[0].Rows)

            {

                Infragistics.Win.UltraWinTabControl.UltraTab Tab = new Infragistics.Win.UltraWinTabControl.UltraTab();

                Infragistics.Win.UltraWinGrid.UltraGrid StockGrid = new Infragistics.Win.UltraWinGrid.UltraGrid();

                Infragistics.Win.UltraWinTabControl.UltraTabPageControl TabPageControl = new Infragistics.Win.UltraWinTabControl.UltraTabPageControl();

                ((System.ComponentModel.ISupportInitialize)(StockGrid)).BeginInit();

                ((System.ComponentModel.ISupportInitialize)(this.ultraTabControl1)).BeginInit();

                this.ultraTabControl1.SuspendLayout();

                TabPageControl.SuspendLayout();

                this.SuspendLayout();

                this.ultraTabControl1.Controls.Add(TabPageControl);

                Tab.TabPage = TabPageControl;

                Tab.Key = System.Convert.ToString(Rwo["MST_Bezeichnung"]);

                Tab.Text = System.Convert.ToString(Rwo["MST_Bezeichnung"]);

                this.ultraTabControl1.Tabs.Add(Tab);

                TabPageControl.Controls.Add(StockGrid);

                this.intMedikament_ID = System.Convert.ToInt32(Rwo["LAG_Medicament_ID"]);

                TabPageControl.Controls.Add(this.grdDosageHistory);

                TabPageControl.Location = new System.Drawing.Point(1, 23);

                TabPageControl.Name = "ultraTabPageControl1";

                TabPageControl.Size = new System.Drawing.Size(389, 327);

                TabPageControl.Controls[0].Dock = DockStyle.Fill;

                ((System.ComponentModel.ISupportInitialize)(StockGrid)).EndInit();

                ((System.ComponentModel.ISupportInitialize)(this.ultraTabControl1)).EndInit();

                this.ultraTabControl1.ResumeLayout(false);

                TabPageControl.ResumeLayout(false);

                this.ResumeLayout(false);

                //Fetching Dataset for Grid and assign datasource

                FillValues(StockGrid);

                //Formatting the grid - here the error occurs (Displaylayout is null)

                FormatGrid(StockGrid);

                if (Convert.ToInt32(Rwo["LAG_Medicament_ID"]) == this.intActiveMedikamentID)

                {

                    this._ActiveStockGrid = StockGrid;

                }

                GridsToFormat[i] = StockGrid;

                i++;

            }

Please suggest, what i can do... Leaving out the funtion (FormatGrid(...) works, but displaylayout looks ugly...

Thank, Marc!