Winform-DataGridView

1 常用属性

      // 1.点击后的选中模式 this.dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect;// 2.不显示首列this.dgv.RowHeadersVisible = false;// 3.设置单元格行高this.dgv.RowTemplate.Height = 50;// 4.设置是否显示列标题this.dgv.ColumnHeadersVisible = false;// 5.设置单个单元格的背景色 字体颜色this.dgv.Rows[1].Cells[1].Style.BackColor = Color.Green;this.dgv.Rows[1].Cells[1].Style.ForeColor = Color.Red;// 6.隔行换颜色this.dgv.RowsDefaultCellStyle.BackColor = Color.LightBlue;this.dgv.AlternatingRowsDefaultCellStyle.BackColor = Color.LightCyan;// 7.设置列显示位置this.dgv.Columns["ids"].DisplayIndex = 0;// 8.列冻结this.dgv.Columns["ids"].Frozen = true;// 9.文本对其方式// 10.列标题居中this.dgv.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;this.dgv.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;// 11.单元格值为Null时的默认值this.dgv.DefaultCellStyle.NullValue = "IsNull";// 12.单元格边框样式this.dgv.CellBorderStyle = DataGridViewCellBorderStyle.None;// 13.数据样式this.dgv.Columns["Price"].DefaultCellStyle.Format = "C3"; //货币格式，保留3位小数// 14.取消多选this.dgv.MultiSelect = false;// 15.设置选中行this.dgv.Rows[2].Selected = true;// 17.选中单元格后的背景色this.dgvO.DefaultCellStyle.SelectionBackColor = Color.Black;     

2 常用方法

    // 1.排序this.dgv.Sort(dgv.Columns[3], ListSortDirection.Ascending);// 2.当前单元格内容string value = this.dgv.CurrentCell.Value.ToString();

3 添加列

   DataGridViewButtonColumn col = new DataGridViewButtonColumn();col.Text = col.Name = "Delete";col.UseColumnTextForButtonValue = true; // Button text 显示 Text值this.dgv.Columns.Add(col); //添加到最后边this.dgv.Columns.Insert(index,col); //添加到指定列

4 获取 DataGridViewCheckBoxColumn 选中项

注意：当添加DataGridViewCheckBoxColumn 列时，需要勾选 Enable Editing，否则不能选中

       List<string> listIds = new List<string>();for (int i = 0; i < dgv.Rows.Count; i++){if (dgv.Rows[i].Cells[0].EditedFormattedValue.ToString().ToLower().Equals("true")){listIds.Add(this.dgv.Rows[i].Cells["ids"].Value.ToString());}}string str= string.Join(";", listIds.ToArray());MessageBox.Show(str);

5 DataGridViewButtonColumn 列按钮点击事件

        private void dgv_CellClick(object sender, DataGridViewCellEventArgs e){if (e.RowIndex <= -1) return; //异常处理，如果是第一行的话if (this.dgv.Columns[e.ColumnIndex].HeaderText == "Delete"){string str = this.dgv.Rows[e.RowIndex].Cells["ids"].Value.ToString();MessageBox.Show("Delete:" + str);}}

6 正常显示图片

            //获取 Image类的实例，并修改图片的显示方式DataGridViewImageColumn col = dgv.Columns["Image"] as DataGridViewImageColumn;col.ImageLayout = DataGridViewImageCellLayout.Zoom;//修改行高来设置高度this.dgv.RowTemplate.Height = 60;this.dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;

7.换行显示

设置属性：

this.dgv.DefaultCellStyle.WrapMode = DataGridViewTriState.True;

在需要换行的地方添加：Environment.NewLine