public MainViewModel()
{
this.Items = new ObservableCollection<DataItem>();
for (int i = 0; i < 5; i++)
{
var dataItem = new DataItem()
{
Header = "Item " + i,
Content = "Lorem ipsum dolor sit amet, consectetur adipiscing elit." +
"Nulla euismod dictum sapien dictum tempus." +
"In hac habitasse platea dictumst. Curabitur ut consectetur risus." +
"In neque magna, feugiat vitae ligula sit amet, condimentum tempus nulla." +
"Vestibulum condimentum est quis neque tincidunt interdum." +
"Nunc pellentesque orci id elit pharetra, at cursus odio tincidunt." +
"Quisque vel blandit est. Vivamus in purus eget eros iaculis pulvinar." +
"Aliquam erat volutpat. Nulla mi augue, molestie sit amet neque non, convallis fermentum enim." +
"Mauris faucibus ante sed orci sagittis vehicula. Cras ac felis ac est imperdiet gravida non id eros." +
"Vivamus odio eros, imperdiet vel lectus id, scelerisque pellentesque magna." +
"Vestibulum eleifend pharetra vestibulum." +
"Maecenas quis suscipit eros, nec dictum dui. In hac habitasse platea dictumst."
};
this.Items.Add(dataItem);
}
}
private void AddItemButton_Click(object sender, RoutedEventArgs e)
{
var mainViewModel = this.DataContext as MainViewModel;
// Any of the fields is empty - animate an error message
if (String.IsNullOrEmpty(this.headerTBox.Text) ||
String.IsNullOrEmpty(this.contentTBox.Text))
{
this.errorTBlock.Opacity = 1;
var a = new DoubleAnimation
{
From = 1.0,
To = 0.0,
FillBehavior = FillBehavior.Stop,
BeginTime = TimeSpan.FromSeconds(2),
Duration = new Duration(TimeSpan.FromSeconds(0.8))
};
var storyboard = new Storyboard();
storyboard.Children.Add(a);
Storyboard.SetTarget(a, this.errorTBlock);
Storyboard.SetTargetProperty(a, new PropertyPath(OpacityProperty));
storyboard.Completed += delegate { this.errorTBlock.Opacity = 0; };
storyboard.Begin();
return;
}
// Otherwise add new item in the TileView
DataItem dataItem = new DataItem()
{
Header = this.headerTBox.Text,
Content = this.contentTBox.Text
};
mainViewModel.Items.Add(dataItem);
this.headerTBox.Text = String.Empty;
this.contentTBox.Text = String.Empty;
}