dataGridView添加列行
//全局设置文本对齐方式。 dataGridView1.RowsDefaultCellStyle.Alignment= DataGridViewContentAlignment.MiddleCenter;
添加列时，必须设置列的CellTemplate，否则应该报错！
一、只添加text样式
1 //每一列必须设置CellTemplate 2 //第一列 3 dataGridView1.Columns.Add(new DataGridViewColumn() {Name="name", HeaderText = "姓名", Width = 100,CellTemplate = new DataGridViewTextBoxCell(), MinimumWidth=100}); 4 5 6 //第二列 7 DataGridViewColumn ageColumn = new DataGridViewColumn() 8 { 9 Name = "age", 10 HeaderText = "年龄", 11 Width = 100, 12 CellTemplate = new DataGridViewTextBoxCell() 13 }; 14 //设置文本对齐方式 15 ageColumn.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; 16 //设置该列背景颜色 17 ageColumn.DefaultCellStyle.BackColor = Color.Red; 18 dataGridView1.Columns.Add(ageColumn); 19 20 //添加行 21 for (int i = 0; i < 10; i++) 22 { 23 //第一种添加行的方式：得到添加新行的索引号，然后通过该索引号操作该行的各个单元格 24 //int index = dataGridView1.Rows.Add(); 25 //dataGridView1.Rows[index].Cells["name"].Value = "宝宝"+i; 26 //dataGridView1.Rows[index].Cells["age"].Value = "宝年"+ i; 27 28 // 第二种添加行的方式：直接加入新行 29 dataGridView1.Rows.Add(new string[] { "宝宝" + i, "宝年" + i }); 30 31 //第三种添加行的方式： 一个单元格一个单元格的加，这样方便为单独某个单元格赋值 32 //DataGridViewRow dr = new DataGridViewRow(); 33 //DataGridViewTextBoxCell textcell1 = new DataGridViewTextBoxCell(); 34 //textcell1.Value = "宝宝" + i; 35 //dr.Cells.Add(textcell1); 36 //DataGridViewTextBoxCell textcell2 = new DataGridViewTextBoxCell(); 37 //textcell2.Value = "宝宝" + i; 38 //dr.Cells.Add(textcell2); 39 //dataGridView1.Rows.Add(dr); 40 41 42 }
二、添加DataGridViewCheckBoxCell
//全局设置文本对齐方式 //dataGridView1.RowsDefaultCellStyle.Alignment= DataGridViewContentAlignment.MiddleCenter; //每一列必须设置CellTemplate //第一列 dataGridView1.Columns.Add(new DataGridViewColumn() {Name="name", HeaderText = "姓名", Width = 100,CellTemplate = new DataGridViewTextBoxCell(), MinimumWidth=100}); //第二列 DataGridViewColumn ageColumn = new DataGridViewColumn() { Name = "age", HeaderText = "年龄", Width = 100, CellTemplate = new DataGridViewTextBoxCell() }; //设置文本对齐方式 ageColumn.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; //设置该列背景颜色 ageColumn.DefaultCellStyle.BackColor = Color.Red; dataGridView1.Columns.Add(ageColumn); //第三列，即CheckBox列 DataGridViewColumn sexColumn = new DataGridViewCheckBoxColumn() { Name = "sex", HeaderText = "男女", Width = 50, CellTemplate = new DataGridViewCheckBoxCell(), TrueValue =true, FalseValue=false, }; sexColumn.DefaultCellStyle.BackColor = Color.Beige; sexColumn.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; dataGridView1.Columns.Add(sexColumn); //添加行 for (int i = 0; i < 10; i++) { int index = dataGridView1.Rows.Add(); dataGridView1.Rows[index].Cells["name"].Value = "宝宝" + i; dataGridView1.Rows[index].Cells["age"].Value = i ; //将所有的CheckBox单元格设置为选中状态。 DataGridViewCheckBoxCell dcc = (DataGridViewCheckBoxCell)dataGridView1.Rows[index].Cells["sex"]; if (!Convert.ToBoolean(dcc.Value)) { dcc.Value = true; } }
添加上DataGridViewCheckBoxCell之后并没有完事，需要自己在dataGridView1的CellContentClick事件中来写点击该DataGridViewCheckBoxCell的选中状态哦。
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e) { //确定是CheckBox的那一列 if (e.ColumnIndex == 2) { //得到该CheckBox单元格 DataGridViewCheckBoxCell dcc = dataGridView1.Rows[e.RowIndex].Cells["sex"] as DataGridViewCheckBoxCell; //如果是选中状态就让其更换value的值（即不选中），否则，反之。 if (Convert.ToBoolean(dcc.Value)) { dcc.Value = false; } else { dcc.Value = true; } } }
三、添加combox列（含有另一种checkbox列的加法）
1 //用户自己调整列的宽度和高度 2 dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing; 3 //设置列头的高度 4 dataGridView1.ColumnHeadersHeight = 50; 5 6 7 8 //设置数据源 9 DataTable dt = new DataTable(); 10 dt.Columns.Add("code"); 11 dt.Columns.Add("name"); 12 for (int i = 0; i < 5; i++) 13 { 14 DataRow dr = dt.NewRow(); 15 dr["code"] = "code" + i; 16 dr["name"] = "宝族" + i; 17 dt.Rows.Add(dr); 18 } 19 20 21 //第1列 22 DataGridViewColumn nameColumn = new DataGridViewColumn() 23 { 24 25 Name = "name", 26 HeaderText = "名称", 27 CellTemplate = new DataGridViewTextBoxCell(), 28 Width = 100 29 }; 30 nameColumn.DefaultCellStyle.BackColor = Color.Aqua; 31 32 dataGridView1.Columns.Add(nameColumn); 33 //第二列 34 DataGridViewColumn sexColumn = new DataGridViewCheckBoxColumn()//注意是Cloumn 35 { 36 Name = "sex", 37 HeaderText = "性别", 38 TrueValue = true, FalseValue = false, 39 CellTemplate = new DataGridViewCheckBoxCell(),//注意是Cell 40 Width = 100, 41 }; 42 sexColumn.DefaultCellStyle.BackColor = Color.Bisque; 43 sexColumn.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; 44 dataGridView1.Columns.Add(sexColumn); 45 //第三列 46 DataGridViewColumn nationColumn = new DataGridViewComboBoxColumn() 47 { 48 Name = "nation", 49 HeaderText = "民族", 50 CellTemplate = new DataGridViewComboBoxCell(), 51 Width = 200, 52 FlatStyle=FlatStyle.Popup, 53 DisplayStyle=DataGridViewComboBoxDisplayStyle.DropDownButton,//设置显示样式 54 55 }; 56 nationColumn.DefaultCellStyle.BackColor = Color.LightPink; 57 58 // nationColumn.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight; 59 dataGridView1.Columns.Add(nationColumn); 60 61 //添加行数。checkbox和combox自动添加了，所有此处只添加第一列的行数即可 62 for (int i = 0; i < 10; i++) 63 { 64 DataGridViewRow dr = new DataGridViewRow(); 65 //行的第一列 66 DataGridViewTextBoxCell nameCell = new DataGridViewTextBoxCell(); 67 nameCell.Value = "宝宝" + i; 68 dr.Cells.Add(nameCell); 69 dataGridView1.Rows.Add(dr); 70 dataGridView1.Rows[i].Height = 50;//设置行高 71 72 } 73 //设置checkbox列和combox列 74 foreach (DataGridViewRow dr in dataGridView1.Rows) 75 { 76 //行的第二列 77 DataGridViewCheckBoxCell sexCell =dr.Cells["sex"] as DataGridViewCheckBoxCell; 78 sexCell.Value = true; 79 //行的第三列 80 DataGridViewComboBoxCell nationCell = dr.Cells["nation"] as DataGridViewComboBoxCell; 81 nationCell.DataSource = dt; 82 nationCell.DisplayMember = "name"; 83 nationCell.ValueMember = "code"; 84 nationCell.Value = "code2";//设置默认值。valueMember的值 85 nationCell.DisplayStyle = DataGridViewComboBoxDisplayStyle.ComboBox;//设置展示样式 86 }
（1）此处可能会出现，点击最后一行的时候，表会自动添加一行。为了阻止，需
//防止控件自动添加新的一行 dataGridView1.AllowUserToAddRows = false;
（2）当点击combox列时，会发现，只有点击两侧才能出现下拉框，需在cell_click事件中
先设置DataGridvDataGridView的属性：EditMode=EditOnEnter,再添加：
1 private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e) 2 { 3 if (e.ColumnIndex >= 0 && e.RowIndex >= 0 && dataGridView1[e.ColumnIndex, e.RowIndex] != null && !dataGridView1[e.ColumnIndex, e.RowIndex].ReadOnly) 4 { 5 DataGridViewComboBoxColumn comboBoxColumn = dataGridView1.Columns[e.ColumnIndex] as DataGridViewComboBoxColumn; 6 if (comboBoxColumn != null) 7 { 8 this.dataGridView1.CurrentCell = dataGridView1[e.ColumnIndex, e.RowIndex]; 9 dataGridView1.BeginEdit(true); 10 DataGridViewComboBoxEditingControl comboBoxEditingControl = dataGridView1.EditingControl as DataGridViewComboBoxEditingControl; 11 if (comboBoxEditingControl != null) 12 { 13 comboBoxEditingControl.DroppedDown = true; 14 } 15 } 16 } 17 }
（3）取值
1 DataGridViewCheckBoxCell dcb = dataGridView1.Rows[0].Cells["sex"] as DataGridViewCheckBoxCell; 2 string dcbValue = dcb.Value.ToString();//获得某一单元格的checkbox的值 3 DataGridViewComboBoxCell dbc= dataGridView1.Rows[0].Cells["nation"] as DataGridViewComboBoxCell; 4 string dbcValue = dbc.Value.ToString();//获得某一单元格的combox的value值 5 MessageBox.Show(dcbValue);
完！
