WPF

public static readonly DependencyProperty coProperty = DependencyProperty.Register("CoType", typeof(int), typeof(UserControl1),
                     new UIPropertyMetadata(string.Empty, new PropertyChangedCallback(textChangedCallBack)));

public int CoType
{
   get {return nType;}
   set {
              nType =value;
              textBlock1.Text = value.ToString();                           
        }
}

public int CoType
{          
   get { return (int)GetValue(coProperty ); }
   set { SetValue(coProperty , value); }
}

jonatan_556 wrote:

I fix it by deleting the obj folder where the mainpage.g.cs is stored.

XDocument xmlDoc = XDocument.Load("TabItemsData.xml");
List<TabItemInfo> tabItemInfoList= (from tabItem in xmlDoc.Descendants("TabItems")
                                select new TabItemInfo //TabItemInfo is your class name
                                {
                                    //Set all class properties as given below
                                    TabItemID =int.Parse(tabItem.Element("TabItemId").Value),
                                    TabName = tabItem.Element("TabName").Value,
                                }).ToList<TabItemInfo>();

foreach (TabItemInfo tabItemInfo in tabItemInfoList)
          {
              //Create Tab Items
              TabItem tabItem = new TabItem();
              tabItem.Header = tabItemInfo.TabName;
              moduleTabControls.Items.Add(tabItem);
          }