DataGridview动态添加列

1.获取数据源（select * from table名称）

2.动态绑定数据源

  private void GetTableInfo(DataTable dt)
         {
             listBh = new List<BH_DICTInfo>();
             foreach (DataRow dr in dt.Rows)
             {
                 BH_DICTInfo model = new BH_DICTInfo();
                 model.DictId = dr["DICT_ID"].ToString();
                 model.DictName = dr["DICT_NAME"].ToString();
                 model.DictType = dr["DICT_TYPE"].ToString();
                 model.Enable = Convert.ToDecimal(dr["ENABLE"].ToString());
                 model.Orders = Convert.ToDecimal(dr["ORDERS"].ToString());
                 model.Remark = dr["REMARK"].ToString();
                 listBh.Add(model);
             }
             dgvBh.DataSource = listBh;
             //清除上次数据源
             this.dgvBh.Columns.Clear();
             //属性时是否自动创建列
             dgvBh.AutoGenerateColumns = false;

             DisplayCol(dgvBh, "DictId", "字典编号");
             DisplayCol(dgvBh, "DictName", "字典名称");
             DisplayCol(dgvBh, "DictType", "字典类型");
             DisplayCol(dgvBh, "Orders", "字典名称");
             DisplayCol(dgvBh, "Enable", "是否可用");
             DisplayCol(dgvBh, "Remark", "备注");
             DisplayCol(dgvBh, "Checkbox", "删除");
             //this.dgvBh.DataMember = "DictName,DictType,Orders,Enable,Remark";
             this.dgvBh.Columns[].Visible = false;
         }
         /// <summary>
         /// 添加列表头
         /// </summary>
         /// <param name="dgv"></param>
         /// <param name="dataPropertyName"></param>
         /// <param name="headerText"></param>
         void DisplayCol(DataGridView dgv, string dataPropertyName, string headerText)
         {
             //dgv.Columns[dataPropertyName].Width = 100;
             if (dataPropertyName == "Checkbox")
             {
                 DataGridViewCheckBoxColumn ck = new DataGridViewCheckBoxColumn();
                 ck.DataPropertyName = dataPropertyName;
                 ck.HeaderText = headerText;
                 ck.Name = dataPropertyName;
                 dgv.Columns.AddRange(new DataGridViewColumn[] { ck });
             }
             else
             {
                 DataGridViewTextBoxColumn obj = new DataGridViewTextBoxColumn();
                 obj.DataPropertyName = dataPropertyName;
                 obj.HeaderText = headerText;
                 obj.Name = dataPropertyName;
                 obj.Resizable = DataGridViewTriState.True;
                 obj.ReadOnly = true;
                 dgv.Columns.AddRange(new DataGridViewColumn[] { obj });
             }
         }

3.获取选中的行

 #region 修改事件
        /// <summary>
        /// 修改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnBh_update_Click(object sender, EventArgs e)
        {
            model = new BH_DICTInfo();
            foreach (DataGridViewRow row in this.dgvBh.SelectedRows)
            {
                model.DictId = row.Cells["DictId"].Value.ToString();
                model.DictName = row.Cells["DictName"].Value.ToString();
                model.DictType = row.Cells["DictType"].Value.ToString();
                model.Enable = Convert.ToDecimal(row.Cells["Enable"].Value.ToString());
                model.Orders = Convert.ToDecimal(row.Cells["Orders"].Value.ToString());
                model.Remark = row.Cells["Remark"].Value.ToString();
            }
            if (model == null)
                MessageBox.Show("请选择");
            BhDictAddEdit SysEdit = new BhDictAddEdit("业务字典编辑信息", "保存编辑", model);
            SysEdit.ShowDialog();
            BindDataBh();
        }
        #endregion

4.删除多行操作

   #region 删除事件
         /// <summary>
         ///删除事件
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void btnBh_delete_Click(object sender, EventArgs e)
         {
             //动态添加链接对象语句
             StringBuilder sqlStr = new StringBuilder();
             for (int i = ; i < dgvBh.Rows.Count; i++)
             {
                 object cbh = this.dgvBh.Rows[i].Cells["Checkbox"].Value;
                 if (cbh != null)
                 {
                     sqlStr.Append("DICT_ID=");
                     sqlStr.Append("\'");
                     sqlStr.Append(this.dgvBh.Rows[i].Cells["DictId"].Value.ToString());
                     sqlStr.Append("\'");
                     sqlStr.Append(" or ");
                 }
             }

             if (sqlStr.ToString() != "")
             {
                 string sq = sqlStr.ToString().Substring(, sqlStr.ToString().TrimEnd().LastIndexOf("or"));

                 if (DevExpress.XtraEditors.XtraMessageBox.Show("您确定要删除吗？", "系统提示") == System.Windows.Forms.DialogResult.OK)
                // if (MessageBox.Show("您确定要删除吗？", "系统提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == System.Windows.Forms.DialogResult.Yes)
                 {
                     string sql = "delete from bh_dict where " + sq + "";
                     ParameterSetConfig.GetDataDal();
                     ParameterSetConfig.OpenDB();
                     DataTable dt = ParameterSetConfig._dataDal.ExecuteSqlReturnTable(sql);
                     ParameterSetConfig.closeDB();
                     BindDataBh();
                 }
             }
             else
             {
                 MessageBox.Show("请选择要删除的行");
             }
         }