How to make WinForms DataGrid to allow only a specific number of items to be selected?
WinForms DataGrid (SfDataGrid) allows you to select multiple rows or cells by setting the SelectionMode property as Multiple. You can make SfDataGrid to allow only a specific number of items to be selected by using the SfDataGrid.SelectionChanging and SfDataGrid.CurrentCellActivating events.
sfDataGrid1.SelectionChanging += OnSfDataGrid1_SelectionChanging;
sfDataGrid1.CurrentCellActivating += OnSfDataGrid1_CurrentCellActivating;
private void OnSfDataGrid1_CurrentCellActivating(object sender, Syncfusion.WinForms.DataGrid.Events.CurrentCellActivatingEventArgs e)
{
if ((sender as SfDataGrid).SelectedItems.Count == 2 && !(sender as SfDataGrid).SelectedItems.Contains(e.DataRow.RowData))
e.Cancel = true;
}
private void OnSfDataGrid1_SelectionChanging(object sender, Syncfusion.WinForms.DataGrid.Events.SelectionChangingEventArgs e)
{
if (e.RemovedItems.Count ==0 && (sender as SfDataGrid).SelectedItems.Count == 2)
e.Cancel = true;
}
Take a moment to peruse the documentation, where you can find about selection in SfDataGrid, with code examples.
Please refer this link to know about the essential features of Syncfusion WPF DataGrid.
You can download the example from GitHub.
Conclusion
I hope you enjoyed learning about how to make WinForms DataGrid to allow only a specific number of items to be selected.
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