Mini Kabibi Habibi

using System;
using System.Windows;
using System.Windows.Controls;
using DevExpress.Xpf.DemoBase;
using System.Collections;
using DevExpress.Xpf.Core;
using DevExpress.Utils;
using System.Data;
using DevExpress.Xpf.Editors;


namespace CommonDemo {
   [CodeFile("ModuleResources/LookUpEditTemplates(.SL).xaml")]
    public partial class LookUpEdit : CommonDemoModule {
        NWindDataLoader NWind { get; set; }
        string GenericXamlName { get { return "Generic.xaml"; } }
        DataView Categories { get { return (DataView)NWind.Categories; } }
        DataView Products { get { return (DataView)lookUpEdit.DataContext; } }
        int NewItemRowID { get { return Products.Count + 1; } }
        public LookUpEdit() {
            Resources.MergedDictionaries.Add(new ResourceDictionary() { Source = new Uri(string.Format("/{0};component/Themes/{1}", AssemblyHelper.GetPartialName(typeof(LookUpEdit).Assembly), GenericXamlName), UriKind.Relative) });
            InitializeComponent();
            NWind = Resources["NWindDataLoader"] as NWindDataLoader;
        }
        Control control;
        private void lookUpEdit_ProcessNewValue(DependencyObject sender, DevExpress.Xpf.Editors.ProcessNewValueEventArgs e) {
            if(!(bool)chProcessNewValue.IsChecked)
                return;

            control = new ContentControl { Template = (ControlTemplate)Resources["addNewRecordTemplate"], Tag = e };
            Products.BeginInit();
            DataRowView row = Products.AddNew();
            row["ProductName"] = e.DisplayText;

            control.DataContext = row;
            FrameworkElement owner = sender as FrameworkElement;
            DialogClosedDelegate closeHandler = CloseAddNewRecordHandler;

            FloatingContainer.ShowDialogContent(control, owner, Size.Empty, new FloatingContainerParameters()
            {
                Title = "Add New Record",
                AllowSizing = false,
                ClosedDelegate = closeHandler,
                ContainerFocusable = false,
                ShowModal = true
            });

            e.PostponedValidation = true;
            e.Handled = true;
        }

        void CloseAddNewRecordHandler(bool? close) {
            DataRowView row = (DataRowView)control.DataContext;
            if(close == null || !(bool)close)
                row.CancelEdit();
            Products.EndInit();
            control = null;
        }
        protected override object GetModuleDataContext() {
            return lookUpEdit;
        }
    }
}