如何在c＃中的datagridviewcombobox中允许用户手动输入

我想在datagridview Combobox中输入值。 但它不允许。 该怎么办？

Answer 1

private void GridStockItemEntry_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { DataGridViewRow row = GridStockItemEntry.CurrentRow; DataGridViewCell cell = GridStockItemEntry.CurrentCell; if (e.Control.GetType() == typeof(DataGridViewComboBoxEditingControl)) { if (cell == row.Cells["ItemName"] && Convert.ToString(row.Cells["Type"].Value) == "Raw Material") { DataGridViewComboBoxEditingControl cbo = e.Control as DataGridViewComboBoxEditingControl; cbo.DropDownStyle = ComboBoxStyle.DropDown; cbo.Validating += new CancelEventHandler(cbo_Validating); } } } void cbo_Validating(object sender, CancelEventArgs e) { DataGridViewComboBoxEditingControl cbo = sender as DataGridViewComboBoxEditingControl; DataGridView grid = cbo.EditingControlDataGridView; object value = cbo.Text; // Add value to list if not there if (cbo.Items.IndexOf(value) == -1) { DataGridViewComboBoxCell cboCol = (DataGridViewComboBoxCell)grid.CurrentCell; // Must add to both the current combobox as well as the template, to avoid duplicate entries... cbo.Items.Add(value); cboCol.Items.Add(value); grid.CurrentCell.Value = value; } } 

Answer 2

也许，这个例子更具可读性：

 private void datagridview_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { DataGridView dgv = (DataGridView)sender; if(dgv.CurrentCell.ColumnIndex==dgv.Columns["ColumnName"].Index) { ComboBox cbx = (ComboBox)e.Control; cbx.DropDownStyle = ComboBoxStyle.DropDown; cbx.AutoCompleteSource = AutoCompleteSource.ListItems; cbx.AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.Suggest; } } 

Answer 3

确保DataGridView EditMode属性设置为EditOnKeystrokeOrF2

另外，validationReadOnly属性是否设置为False 。