DataGridView implements a column of cells to display multiple modes of operation

Rt:

The main methods used:

How to draw in cellpainting

        private void Datagridview1_cellpainting (object sender, DataGridViewCellPaintingEventArgs e) { if (e.columnindex >= 0 && e.rowindex >= 0) {if (this.datagridview1.columns[e.co Lumnindex]. HeaderText = = "Op") {Employee model = This.datagridview1.rows[e.rowindex].
                    Databounditem as Employee; if (model!= null) {StringFormat SF = StringFormat.GenericDefault.Clone () as
                        StringFormat; sf.
                        FormatFlags = Stringformatflags.displayformatcontrol; sf.
                        Alignment = Stringalignment.center; sf.
                        LineAlignment = Stringalignment.center; sf.
                        trimming = Stringtrimming.ellipsischaracter;
                        E.paintbackground (E.cellbounds, false); int MD = model.
                        Age% 3;
            string text = "Delete";            if (model.
                        Age% 3 = 1) {text = "Modify";
                                Switch (MD) {Case 1:
                                E.graphics.drawstring (text, This.dataGridView1.Font, brushes.red, E.cellbounds, SF);
                            Break
                                Case 2:string text2 = "delete"; if (model.
                                Age% 3 = 2) {Text2 = "modify";

                                } SizeF size = e.graphics.measurestring (text, This.dataGridView1.Font);
                                SizeF size2 = e.graphics.measurestring (Text2, This.dataGridView1.Font); float z = size. Width/(size. Width + size2.
                                Width); Float z2 = size2. Width/(size.Width + size2.
                                Width);
                                RectangleF rect1 = new RectangleF (E.cellbounds.left, e.cellbounds.top, E.cellbounds.width * z, e.cellbounds.height); RectangleF rect2 = new RectangleF (rect1.
                                Right, E.cellbounds.top, E.cellbounds.width * Z2, E.cellbounds.height);
                                E.graphics.drawstring (text, This.dataGridView1.Font, brushes.red, Rect1, SF);
                                E.graphics.drawstring (Text2, This.dataGridView1.Font, brushes.red, Rect2, SF);
                            Break Default:e.graphics.drawstring (text, This.dataGridView1.Font, brushes.red, E.cellbounds,
                                SF); 
                        Break
                } e.handled = true;
 }
            }
        }

The action is processed in the Cellmouseclick event.

        private void Datagridview1_cellmouseclick (object sender, DataGridViewCellMouseEventArgs e) {P
            oint pt = e.location; if (e.columnindex >= 0 && e.rowindex >= 0) {if (this.datagridview1.columns[e.co Lumnindex]. HeaderText = = "Op") {Employee model = This.datagridview1.rows[e.rowindex].
                    Databounditem as Employee; if (model!= null) {int MD = model.
                        Age% 3;
                        string text = "Delete"; if (model.
                        Age% 3 = 1) {text = "Modify";
                           
                                Switch (MD) {Case 1:
                            Break
                         Case 2:string text2 = "delete";       if (model.
                                Age% 3 = 2) {Text2 = "modify";
                                } Graphics g = This.dataGridView1.CreateGraphics ();

                                SizeF size = g.measurestring (text, This.dataGridView1.Font);
                                SizeF size2 = g.measurestring (Text2, This.dataGridView1.Font); float z = size. Width/(size. Width + size2.
                                Width); Float z2 = size2. Width/(size. Width + size2.
                                Width); Rectangle rect = new Rectangle (0, 0, This.datagridview1.columns[e.columnindex]. Width, This.datagridview1.rows[e.rowindex].
                                Height); RectangleF rect1 = new RectangleF (rect. Left, rect. Top, Rect. Width * Z, rect.
                                Height); RectangleF rect2 = new RectangleF (rect1. Right, rect. Top, Rect. Width * Z2, rect.
            Height);                    if (rect1.
                                Contains (PT)) {MessageBox.Show ("1111111"); } if (Rect2.
                                Contains (PT)) {MessageBox.Show ("2222222");
                            } break;
                        Default:break; } 
                    }
                }
            }
            
        }

Image above:

Source: http://download.csdn.net/detail/zanfeng/9453608