void DataGrid_PreviewKeyDown(object sender, KeyEventArgs e)
{
DataGrid dg = sender as DataGrid;
if (dg != null)
{
DataGridRow dgr = (DataGridRow)(dg.ItemContainerGenerator.ContainerFromIndex(dg.SelectedIndex));
if (e.Key == Key.Delete && !dgr.IsEditing)
{
var result = ModernDialog.ShowMessage("About to delete the current row.\n\nProceed?", "Delete",
MessageBoxButton.YesNo);
if (result == MessageBoxResult.No)
{
e.Handled = true;
}
else
{
var unit = (ShowableUnit)dgr.Item;
var data = UnitsFunctions.RemoveUnit(unit.Id);
RefreshData();
if (data != "")
{
ModernDialog.ShowMessage(data, "Problem with writing to database", MessageBoxButton.OK);
}
}
}
}
}
public Units()
{
InitializeComponent();
DataGridCombo.ItemsSource = UnitsFunctions.GetTypes();
DataGrid.RowEditEnding += DataGrid_RowEditEnding;
DataGrid.PreviewKeyDown += DataGrid_PreviewKeyDown;
}
private void RefreshData()
{
UnitsLits.Clear();
var tmp = UnitsFunctions.GetAllUnits();
foreach (var showableCategory in tmp)
{
UnitsLits.Add(showableCategory);
}
DataGrid.Items.Refresh();
}
private void DataGrid_RowEditEnding(object sender, DataGridRowEditEndingEventArgs e)
{
var grid = sender as DataGrid;
if (DataGrid.SelectedItem != null && grid != null)
{
var cat = (ShowableUnit)e.Row.Item;
grid.RowEditEnding -= DataGrid_RowEditEnding;
grid.CommitEdit();
string message = "";
if (IsUnitEmpty(cat))
{
message = "You cannot create empty unit";
}
if (string.IsNullOrEmpty(cat.Name))
{
message = "You cannot create category with empty name";
}
if (string.IsNullOrEmpty(cat.Type))
{
message = "You cannot create category with empty type";
}
if (message != "")
{
grid.CancelEdit();
grid.RowEditEnding += DataGrid_RowEditEnding;
ModernDialog.ShowMessage(message, "Problem with new item!", MessageBoxButton.OK);
grid.Items.Refresh();
RefreshData();
return;
}
grid.RowEditEnding += DataGrid_RowEditEnding;
var q = UnitsFunctions.AddUnit(cat);
if (q != "")
{
ModernDialog.ShowMessage(q, "Problem with writing to database", MessageBoxButton.OK);
}
RefreshData();
}
}
