public CategoriesViewModel()
{
categoryDb = new CategoryDatabase();
EditCommand = new AsyncCommand <CategoryModel>(EditCommandExecute);
AddCommand = new AsyncCommand(AddCommandExecute);
ProductsCommand = new AsyncCommand <CategoryModel>(ProductsCommandExecute);
}
private void onSearchBarTextChanged(object sender, TextChangedEventArgs e)
{
// Create an object that can access the database table Category.
CategoryDatabase cDatabase = new CategoryDatabase();
// If the search text is not empty, then update the list view with possible injuries.
if (String.IsNullOrEmpty(e.NewTextValue))
{
listView.ItemsSource = cDatabase.GetAllCategories();
}
else
{
// Update the list view to search for injuries.
listView.ItemsSource = cDatabase.GetCategoriesByTitle("%" + e.NewTextValue + "%");
}
}
public HomePage()
{
// Create an object that can access the database table Category.
CategoryDatabase cDatabase = new CategoryDatabase();
var searchBar = new SearchBar
{
Placeholder = "Enter Search Term"
};
searchBar.TextChanged += onSearchBarTextChanged;
// Create the listview that will hold the categories of all the injuries.
listView = new ListView
{
RowHeight = 40,
// Define where to pull the data from, in this case it is the rows from the Category table.
ItemsSource = cDatabase.GetAllCategories(),
// Define the ItemTemplate, this will contain a single TextCell.
ItemTemplate = new DataTemplate(typeof(TextCell))
};
// Bind the CategoryName attribute to the TextCell in the ItemTemplate.
listView.ItemTemplate.SetBinding(TextCell.TextProperty, "CategoryName");
// Add a handler for when a ListItem is selected.
listView.ItemSelected += onCategorySelected;
var Logo = new Image {
Aspect = Aspect.AspectFit
};
Logo.Source = ImageSource.FromFile("FirstAid.png");
Button Home = new Button
{
Text = "Home",
HorizontalOptions = LayoutOptions.FillAndExpand
};
Button Emergency = new Button
{
Text = "Emergency",
HorizontalOptions = LayoutOptions.FillAndExpand
};
Button RecoveryLog = new Button
{
Text = "RecoveryLog",
HorizontalOptions = LayoutOptions.FillAndExpand
};
// Assign delegates to the buttons that will change to different pages.
Home.Clicked += onHomeButtonClicked;
Emergency.Clicked += onEmergencyButtonClicked;
RecoveryLog.Clicked += onRecoveryLogButtonClicked;
StackLayout list = new StackLayout
{
Children =
{
listView
},
Orientation = StackOrientation.Vertical,
VerticalOptions = LayoutOptions.Center
};
StackLayout buttons = new StackLayout
{
Children =
{
Home,
Emergency,
RecoveryLog
},
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.CenterAndExpand
};
Content = new StackLayout
{
VerticalOptions = LayoutOptions.Start,
Children =
{
searchBar,
Logo,
list,
buttons
}
};
}
public CategoryFormViewModel()
{
categoryDb = new CategoryDatabase();
SaveCommand = new AsyncCommand(SaveCommandExecute);
}
public ProductFormViewModel()
{
productDb = new ProductDatabase();
categoryDb = new CategoryDatabase();
SaveCommand = new AsyncCommand(SaveCommandExecute);
}
