public void ValidateRowDeletion(DevExpress.Mvvm.Xpf.ValidateRowDeletionArgs args)
{
using (var unitOfWork = new DevExpress.Xpo.UnitOfWork()) {
var key = DetachedObjectsHelper.GetKey(args.Items.Single());
var item = unitOfWork.GetObjectByKey <XPOIssues.Issues.Issue>(key);
unitOfWork.Delete(item);
unitOfWork.CommitChanges();
}
}
public void FetchRows(DevExpress.Mvvm.Xpf.FetchRowsAsyncArgs args)
{
args.Result = Task.Run <DevExpress.Xpf.Data.FetchRowsResult>(() =>
{
using (var session = new DevExpress.Xpo.Session()) {
var queryable = session.Query <XPOIssues.Issues.Issue>().SortBy(args.SortOrder, defaultUniqueSortPropertyName: nameof(XPOIssues.Issues.Issue.Oid)).Where(MakeFilterExpression((DevExpress.Data.Filtering.CriteriaOperator)args.Filter));
var items = queryable.Skip(args.Skip).Take(args.Take ?? 100).ToArray();
return(DetachedObjectsHelper.ConvertToDetachedObjects(items));
}
});
}
public void ValidateRow(DevExpress.Mvvm.Xpf.RowValidationArgs args)
{
using (var unitOfWork = new DevExpress.Xpo.UnitOfWork()) {
var item = args.IsNewItem
? new XPOIssues.Issues.Issue(unitOfWork)
: unitOfWork.GetObjectByKey <XPOIssues.Issues.Issue>(DetachedObjectsHelper.GetKey(args.Item));
DetachedObjectsHelper.ApplyProperties(item, args.Item);
unitOfWork.CommitChanges();
if (args.IsNewItem)
{
DetachedObjectsHelper.SetKey(args.Item, item.Oid);
}
}
}
public MainWindow()
{
InitializeComponent();
using (var session = new Session()) {
var classInfo = session.GetClassInfo <XPOIssues.Issues.Issue>();
var properties = classInfo.Members
.Where(member => member.IsPublic && member.IsPersistent)
.Select(member => member.Name)
.ToArray();
_DetachedObjectsHelper = DetachedObjectsHelper <XPOIssues.Issues.Issue> .Create(classInfo.KeyProperty.Name, properties);
}
var source = new InfiniteAsyncSource
{
CustomProperties = _DetachedObjectsHelper.Properties,
KeyProperty = nameof(XPOIssues.Issues.Issue.Oid)
};
source.FetchRows += OnFetchRows;
source.GetTotalSummaries += OnGetTotalSummaries;
grid.ItemsSource = source;
LoadLookupData();
}
