C # TableLayoutPanel controls apply dynamic add controls and events __c#

<summary> Adjust the layout of the screen </summary> <param name= "Videonum" ></param> <returns></returns> private bool Initializevideo (int videonum) { Count the ranks int rowcol; if (videonum <= 0 | | |!int. TryParse (Math.sqrt (videonum). ToString (), out Rowcol)) { return false; } Calculate width Height int widthheight = (int) (MAINPANEL.WIDTH/ROWCOL); Reset Table Mainpanel as TableLayoutPanel Control MainPanel.Controls.Clear (); Mainpanel.rowcount = Mainpanel.columncount = Rowcol; Mainpanel.cellborderstyle = Tablelayoutpanelcellborderstyle.single; Mainpanel.refresh (); for (int i = 0; i < MainPanel.ColumnStyles.Count; i++) { Mainpanel.columnstyles[i]. Sizetype = Sizetype.absolute; Mainpanel.columnstyles[i]. Width = Widthheight; } for (int i = 0; i < MainPanel.RowStyles.Count; i++) { Mainpanel.rowstyles[i]. Sizetype = Sizetype.absolute; Mainpanel.rowstyles[i]. Height = Widthheight; } Adding controls for (int i = 0; i < videonum; i++) { PictureBox Pvideo = new PictureBox (); pvideo.padding = Pvideo.margin = new Padding (0); Pvideo.name = "Pvideo" + i.tostring (); Pvideo.width = Pvideo.height = Widthheight; Pvideo.dock = DockStyle.Fill; Pvideo.backgroundimage = resources.bg; Pvideo.backgroundimagelayout = Imagelayout.stretch; Pvideo.click + = new EventHandler (Pvideo_click); MAINPANEL.CONTROLS.ADD (pvideo, I% rowcol, i/rowcol); } return true; } <summary> Click image Event </summary> <param name= "Sender" ></param> <param name= "E" ></param> private void Pvideo_click (object sender, EventArgs e) { PictureBox Pvideo = (PictureBox) sender; MessageBox.Show (Pvideo.name); if (Mainpanel.getcolumnspan (pvideo) = = 1) { Hide other controls foreach (Control Ctr in Mainpanel.controls) { if (Ctr. Name!= Pvideo.name) Ctr. Visible = false; } pos = Mainpanel.getpositionfromcontrol (Pvideo); Mainpanel.setcellposition (Pvideo, New tablelayoutpanelcellposition (0, 0)); Mainpanel.setrowspan (Pvideo, Mainpanel.rowcount); Mainpanel.setcolumnspan (Pvideo, Mainpanel.columncount); } Else { Show All controls foreach (Control Ctr in Mainpanel.controls) { Ctr. Visible = true; } Mainpanel.setcellposition (Pvideo, POS); Mainpanel.setrowspan (Pvideo, 1); Mainpanel.setcolumnspan (Pvideo, 1); }