MARKUS

        private string _CheckStatus { get; set; }

        public string CheckStatus

        {

            get

            {

                return _CheckStatus;

            }

            set

            {

                _CheckStatus = value;

                OnPropertyChanged("CheckStatus");

            }

        }

        bool isCheck_Status = false;

        string Select_StatusID = "";

            if (Isinit)

            {

                if (!isCheck_Status)

                {

                    Select_StatusID = ((e.Source as RadioButton).DataContext as Customer).ID;

                    isCheck_Status = true;

                    RadWindow CheckPop = new RadWindow();

                    CheckList_Status check = new CheckList_Status();

                    CheckPop = new RadWindow

                    {

                        MinWidth = 350,

                        MinHeight = 150,

                        Header = "Status Description을 입력하세요",

                        Content = check,

                        ResizeMode = System.Windows.ResizeMode.NoResize,

                        WindowStartupLocation = System.Windows.WindowStartupLocation.CenterScreen,

                        IsTopmost = true,

                    };

                    StyleManager.SetTheme(CheckPop, new Office2013Theme());

                    CheckPop.Closed += CheckPop_Closed;

                    CheckPop.Show();

                    Isinit = false;

                    tb.Rebind();

                }

            }

        }

        private void CheckPop_Closed(object sender, WindowClosedEventArgs e)

        {

            isCheck_Status = false;

            foreach(var item in tb.Items)

                if(Select_StatusID == (item as Customer).ID.ToString())

                    if (ViewerDataModel.Instance.CheckStatus != "" && ViewerDataModel.Instance.CheckStatus != null)

                        (item as Customer).STATUS_DESC = ViewerDataModel.Instance.CheckStatus;

                    }

                    else

                    {

                        (item as Customer).STATUS = "False";

                        (item as Customer)._STATUS = "Open";

                        (item as Customer).STATUS_ = "True";

                    ViewerDataModel.Instance.CheckStatus = "";

                    Select_StatusID = "";

                    tb.Rebind();

                    return;

<UserControl x:Class="KCOM.Controls.CheckList_Status"

             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 

             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 

             xmlns:local="clr-namespace:KCOM.Controls"

             mc:Ignorable="d" 

             d:DesignHeight="300" d:DesignWidth="300">

    <Grid Background="White">

        <Grid>

            <Grid.RowDefinitions>

                <RowDefinition Height ="*" />

                <RowDefinition Height ="40" />

            </Grid.RowDefinitions>

            <telerik:RadButtonGroup Grid.Row="0" Height="30" HorizontalAlignment="Center"

                                                    BorderThickness="1"

                                                    telerik:StyleManager.Theme="Windows8">

                <TextBlock Width="50"

                                    Margin="2"

                                    HorizontalAlignment="Center"

                                    VerticalAlignment="Center"

                                    FontSize="10"

                                    Text="Description"

                                    TextAlignment="Center" />

                <telerik:RadComboBox x:Name="cbDashStyle"

                                                     IsEditable="True"

                                                     Width="200" Margin="5,0,5,0"

                                                     SelectedIndex="0" Background="Transparent"

                                                     telerik:StyleManager.Theme="Office2016">

                </telerik:RadComboBox>

            </telerik:RadButtonGroup>

            <Grid Grid.Row="1">

                <Grid.ColumnDefinitions>

                    <ColumnDefinition />

                    <ColumnDefinition />

                </Grid.ColumnDefinitions>

                <telerik:RadButton Grid.Column="0" Width="100" Height="30"  Click="AddEvent">등록</telerik:RadButton>

                <telerik:RadButton Grid.Column="1" Width="100" Height="30"  Click="CancelEvent">취소</telerik:RadButton>

            </Grid>

        </Grid>

    </Grid>

</UserControl>

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using KCOM.Common;

using KCOMDataModel.DataModel;

using KCOMDataModel.Common;

using System.Configuration;

namespace KCOM.Controls

{

    /// <summary>

    /// CheckList_Status.xaml에 대한 상호 작용 논리

    /// </summary>

    public partial class CheckList_Status : UserControl

    {

        public CheckList_Status()

        {

            InitializeComponent();

            DataBind();

            var STATUS = Properties.Settings.Default.STATUS_DISCRIPTION.Split(new char[] { ';' });

            //var STATUS = new List<string>(ConfigurationManager.AppSettings["STATUS"].Split(new char[] { ';' }));

            foreach (var item in STATUS)

            {

                this.cbDashStyle.Items.Add(item);

            }

        }

        private void DataBind()

        {

            using (CIEntities Entity = new CIEntities(ConnectStringBuilder.ProjectCIConnectString(App.ViewInfo.ProjectNO).ToString()))

            {

            }

        }

        private void AddEvent(object sender, RoutedEventArgs e)

        {

            ViewerDataModel.Instance.CheckStatus = this.cbDashStyle.Text;

            Window window = Window.GetWindow(this);

            window.Close();

        }

        private void CancelEvent(object sender, RoutedEventArgs e)

        {

            Window window = Window.GetWindow(this);

            window.Close();

        }

    }

}

                         DateTime undoTime = DateTime.Parse(ViewerDataModel.Instance.UndoDataList.OrderByDescending(order => order.EventTime).FirstOrDefault().EventTime.ToLongTimeString());

                         DateTime updatetime = DateTime.Parse(ViewerDataModel.Instance._markupInfoList.OrderByDescending(order => order.UpdateTime).FirstOrDefault().UpdateTime.ToLongTimeString());

                         if(undoTime > updatetime)

                        {

                                var box = new TextBlock();

                                box.MinWidth = 400;

                                box.FontSize = 11;

                                box.Text = "저장되지 않은 코멘트가 있습니다. 저장 하시겠습니까?";

                                box.TextWrapping = System.Windows.TextWrapping.Wrap;

                                DialogParameters parameters = new DialogParameters()

                                {

                                    Content = box,

                                    Header = "Confirm",

                                    Theme = new VisualStudio2013Theme(),

                                    ModalBackground = new SolidColorBrush { Color = Colors.Black, Opacity = 0.6 },

                                    Closed = Onclose,

                                };

                                RadWindow.Confirm(parameters);

                            }

        private void Onclose(object sender, WindowClosedEventArgs e)

        {

            if (e.DialogResult == true)

            {

                dzTopMenu.SaveEvent(null, null);

            }

        }

        [global::System.Configuration.ApplicationScopedSettingAttribute()]

        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]

        [global::System.Configuration.DefaultSettingValueAttribute("Vendor확인완료;Vendor적용완료;프로젝트 종료")]

        public string STATUS_DISCRIPTION {

            get {

                return ((string)(this["STATUS_DISCRIPTION"]));

            }

        }

    <Setting Name="STATUS_DISCRIPTION" Type="System.String" Scope="Application">

      <Value Profile="(Default)">Vendor확인완료;Vendor적용완료;프로젝트 종료</Value>

      <setting name="STATUS_DISCRIPTION" serializeAs="String">

        <value>Vendor확인완료;Vendor적용완료;프로젝트 종료</value>