// event handlers
private void ContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
// make sure name and unit are not empty string
if (string.IsNullOrWhiteSpace(TextBoxName.Text))
{
FlyoutWarmingText.Text = "Name cannot be empty!";
FlyoutWarming.ShowAt(TextBoxName);
args.Cancel = true;
return;
}
if (ComboBoxCategory.SelectedIndex == -1)
{
FlyoutWarmingText.Text = "Category cannot be empty!";
FlyoutWarming.ShowAt(ComboBoxCategory);
args.Cancel = true;
return;
}
if (ComboBoxUnit.SelectedIndex == -1)
{
FlyoutWarmingText.Text = "Unit cannot be empty!";
FlyoutWarming.ShowAt(ComboBoxUnit);
args.Cancel = true;
return;
}
// perform real update
TextBoxName.GetBindingExpression(TextBox.TextProperty).UpdateSource();
ComboBoxCategory.GetBindingExpression(ComboBox.SelectedValueProperty).UpdateSource();
ComboBoxUnit.GetBindingExpression(ComboBox.SelectedValueProperty).UpdateSource();
ImageThumbnail.GetBindingExpression(Image.SourceProperty).UpdateSource();
this.ingredient.ThumbnailFilename = this.thumbnailFilename;
}
protected override void OnClosing(CancelEventArgs e)
{
TextBoxName.GetBindingExpression(TextBox.TextProperty).UpdateSource();
bool hasError = (bool)TextBoxName.GetValue(Validation.HasErrorProperty);
if (this.DialogResult == true && hasError)
{
MessageBox.Show("There are still errors, cannot close");
e.Cancel = true;
}
}
private void ContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
// make sure name and unit are not empty string
if (string.IsNullOrWhiteSpace(TextBoxName.Text))
{
FlyoutWarmingText.Text = "Name cannot be empty!";
FlyoutWarming.ShowAt(TextBoxName);
args.Cancel = true;
return;
}
// perform real update
TextBoxName.GetBindingExpression(TextBox.TextProperty).UpdateSource();
}
public Dialog()
{
InitializeComponent();
this.DataContext = this;
TextBoxName.GetBindingExpression(TextBox.TextProperty).UpdateSource();
}
