日期:2014-05-20  浏览次数:21017 次

DataGridView控件中添加删除按钮,进行选中行的删除操作。
我在DataGridView控件绑定数据源后使用代码添加按钮(删除按钮),但是当执行一次删除之后,就会多出一列删除列,这是什么原因啊????
代码如下:
//添加按钮列
  dataGridView1.DataSource = ds.Tables[0].DefaultView;
  DataGridViewButtonColumn ColumnDelete = new DataGridViewButtonColumn();
  ColumnDelete.HeaderText = "删除";
  ColumnDelete.Name = "删除";
  ColumnDelete.Text = "删除";
  this.dataGridView1.Columns.Add(ColumnDelete);
//删除操作
  private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
  {
  if (dataGridView1.Columns[e.ColumnIndex].Name == "delete")
  {
  //sql删除语句
  }
  }

当执行第一次删除时是成功的,但是成功之后多出一列删除列????这是什么情况???

------解决方案--------------------
C# code

conn = new SqlConnection(SQL.conStr);
            conn.Open();
            int row = this.dataGridView2.CurrentCell.RowIndex;
            if (dataGridView2.CurrentRow != null)
            {
                if (MessageBox.Show("确定要删除该行数据吗?", "提示信息", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
                {
                    try
                    {
                        string ind = this.dataGridView2.Rows[row].Cells["流程环节编号"].Value.ToString();
                        string inds = this.dataGridView2.Rows[row].Cells["主机型号"].Value.ToString();
                        SqlCommand cmDelete = new SqlCommand("delete from hostmodel_process where process_id = '" + ind + "' and host_model='"+inds+"'", conn);
                        cmDelete.ExecuteNonQuery();
                        MessageBox.Show("删除成功!");
                        string sql = "select host_model as 主机型号,process_id as 流程环节编号 from hostmodel_process order by host_model,process_id asc";
                        SDA1 = new SqlDataAdapter(sql, conn);
                        DT1 = new System.Data.DataTable();
                        SDA1.Fill(DT1);
                        this.dataGridView2.DataSource = DT1;
                        cmDelete.Dispose();
                        conn.Close();
                    }
                    catch (Exception ex)
                    { MessageBox.Show(ex.Message); }
                }
            }
        }