C # DataGridView Table controls Common operations

1) Row Right-click menu

  private void Datagridview1_cellmousedown (object sender, DataGridViewCellMouseEventArgs e) {if (E.butt on = = Mousebuttons.right) {if (e.rowindex >= 0) {//Wakayuki is selected Then set the IF (Datagridview1.rows[e.rowindex].                                          Selected = = False) {datagridview1.clearselection (); Datagridview1.rows[e.rowindex].                                 Selected = true; }//Select only one row when setting the active cell if (DataGridView1.SelectedRows.Count = = 1) {Datagridview1.currentcell = Datagridview1.rows[e.rowindex].                                 Cells[e.columnindex]; } if (Datagridview1.currentrow! = null) {int idx = Datagridv Iew1.                        Currentrow.index; if (IDX >= 0{String isexport = mdatatablecun.rows[idx]["Isexport"].                            ToString ();                                              if (Isexport = = "exported") {//Popup Action menu                              Contextmenustrip1.show (mouseposition.x, MOUSEPOSITION.Y);                 }                        }                                          }                                        } }         }

2) line Auto-numbering

  private void Datagridview1_rowpostpaint (object sender, Datagridviewrowpostpainteventargs e)        {            Rectangle Rectangle = new Rectangle (e.rowbounds.location.x,            e.rowbounds.location.y,            datagridview1.rowheaderswidth-4 ,            e.rowbounds.height);            Textrenderer.drawtext (E.graphics, (E.rowindex + 1). ToString (),            DataGridView1.RowHeadersDefaultCellStyle.Font,            rectangle,            DataGridView1.RowHeadersDefaultCellStyle.ForeColor,            Textformatflags.verticalcenter | textformatflags.right);        }

3) cell Value set value

  private void Datagridview1_cellcontentclick (object sender, DataGridViewCellEventArgs e)        {            if (E.columnindex = = 2)            {                datagridview1.endedit ();                String ischeck = Datagridview1.rows[e.rowindex]. cells["visible"]. Value.tostring ();                if (Ischeck = = "0")                {                    Datagridview1.rows[e.rowindex]. cells["edit"]. Value = "0";}}        

　　

C # DataGridView Table controls Common operations