datagridview修改单元格类型

Question

            if (dataGridViewForUser.RowCount > 0)
            {
                DataGridViewTextBoxCell txtcell = new DataGridViewTextBoxCell(); 
                for (int i = 0; i < dataGridViewForUser.Rows.Count; i++)
                {
                    int position = int.Parse(ds.Tables[0].Rows[i]["校区"].ToString());
                    //this.dataGridViewForUser.Rows[i].Cells[2].ValueType = typeof(String);
                    this.dataGridViewForUser.Rows[i].Cells[2] = txtcell;
                    switch (position)
                    {
                        case 1:                            this.dataGridViewForUser.Rows[i].Cells[2].Value = "***校区";
                            break;
                        case 2:
                            this.dataGridViewForUser.Rows[i].Cells[2].Value = "***校区";
                            break;
                        case 3:
                            this.dataGridViewForUser.Rows[i].Cells[2].Value = "***校区";
                            break;
                        default:
                            this.dataGridViewForUser.Rows[i].Cells[2].Value = "其他";
                            break;
                    }
                }
            }
我想要把对应的校区代码，换为对应的文字，但现实提示“***校区”是不是int32，我不是已经修改了单元格的属性么，大侠帮忙看下

Answer 1

CellFormatting事件做下处理DataGridView dgv = new DataGridView();
            dgv.CellFormatting += (s, e) =>
                {
                    if (e.ColumnIndex > -1 && e.RowIndex > -1)
                    {
                        int position;
                        if (int.TryParse(dgv.Rows[e.RowIndex].Cells["校区"].Value.ToString(), out position))
                        {
                            switch (position)
                            {
                                case 1:
                                    e.Value = "***校区";
                                    break;
                                case 2:
                                    e.Value = "***校区";
                                    break;
                                case 3:
                                    e.Value = "***校区";
                                    break;
                                default:
                                    e.Value = "其他";
                                    break;
                            }
                        }
                    }
                };