private void Btn_DeleteTopic_Click(object sender, RoutedEventArgs e)
{
MessageBoxResult result = System.Windows.MessageBox.Show("Are you sure you want to delete the Topic", "Delete Topic", MessageBoxButton.YesNo);
switch (result)
{
case MessageBoxResult.Yes:
XmlDocument docu = new XmlDocument();
docu.Load("Topics.xml");
foreach (XmlNode x in docu.SelectNodes("ArrayOfTopic/Topic"))
{
if (x.SelectSingleNode("TopicId").InnerText == Topicid.Text)
{
x.ParentNode.RemoveChild(x);
docu.Save("Topics.xml");
}
}
var addtopic = new AddTopic();
addtopic.Show();
this.Close();
break;
case MessageBoxResult.No:
break;
}
}
private void Btn_AddTopic_Click(object sender, RoutedEventArgs e)
{
var mainwindow = new MainWindow();
mainwindow.Close();
var addtopic = new AddTopic();
addtopic.Show();
this.Close();
}
private void Btn_UpdateTopic_Click(object sender, RoutedEventArgs e)
{
var pro = DbUtility.ReadXml <ObservableCollection <Topic> >("Topics.xml");
var topic = new ObservableCollection <Topic>();
var tp = pro.First(f => f.TopicId == Topicid.Text);
tp.TopicTitle = TopicName.Text;
DbUtility.WriteXml <ObservableCollection <Topic> >(pro, "Topics.xml");
MessageBox.Show("Topic Successfully Updated");
var addtopic = new AddTopic();
addtopic.Show();
this.Close();
}
