我有一個DataGridView,我選擇DataGridView所在的選項卡時,將DataSource設置爲對象集合。DataGridView - ComboBox @ runtime
數據源設置完成後,我想將「縣」列更改爲DataGridViewComboBoxColumn,並將州的縣作爲項目。我見過的沒有任何作品 - 它總是給出一個例外。
有沒有辦法改變列類型而不刪除它?
當我單擊該行中的某個單元而不必修改列類型時,是否有辦法讓組合框或其他控件出現?我的失敗代碼=================== =====
//ii is a for loop variable on the dataGridViewFields.Columns.Count
string colName = dataGridViewFields.Columns[ii].Name;
if (colName.Equals("County"))
{
string dpName = dataGridViewFields.Columns[ii].DataPropertyName;
DataGridViewComboBoxColumn column = new DataGridViewComboBoxColumn();
//get current column characteristics.
column.ValueType = dataGridViewFields.Columns[ii].ValueType; ;
column.Name = dataGridViewFields.Columns[ii].Name;
column.HeaderText = dataGridViewFields.Columns[ii].HeaderText;
column.Width = dataGridViewFields.Columns[ii].Width;
//remove column from grid
dataGridViewFields.Columns.RemoveAt(ii);
//set column combobox characteristics
column.DropDownWidth = 160;
column.MaxDropDownItems = 10;
column.Items.AddRange(new string[] {"Dane", "Dodge", "Door"});
column.FlatStyle = FlatStyle.Flat;
DataGridViewCell cell = new DataGridViewComboBoxCell();
cell.Style.BackColor = Color.Wheat;
cell.ValueType = typeof(string);
cell.Value = "Door";
column.CellTemplate = cell;
//add to the grid.
dataGridViewFields.Columns.Insert(ii, column);
dataGridViewFields.Columns[ii].DataPropertyName = dpName;
//dataGridViewFields.EditMode = DataGridViewEditMode.EditProgrammatically;
}
爲什麼不能使用ComboBox列? – V4Vendetta 2011-05-13 11:41:54