[英]how to allow user manual entry in datagridview combobox in c#
I am trying to enter values in a datagridview Combobox. 我想在datagridview Combobox中输入值。 but it does not Allows.
但它不允许。 What to do?
该怎么办?
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;
}
}
Maybe, this example is better readable: 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;
}
}
Make sure that EditMode
property of the DataGridView
is set to EditOnKeystrokeOrF2
确保
DataGridView
EditMode
属性设置为EditOnKeystrokeOrF2
Also, verify that ReadOnly
property is set to False
. 另外,验证
ReadOnly
属性是否设置为False
。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.