private void GetDataHandler(object sender, RoutedEventArgs e)
{
customerProvider = new DemoCustomerProvider(1000 /*number of items*/, 2000 /*delay*/);
AsyncVirtualizingCollection <Customer> customerList = new AsyncVirtualizingCollection <Customer>(customerProvider, 30 /*page size*/, 3000 /*timeout*/);
this.DataContext = customerList;
}
void refreshButton_Click(object sender, RoutedEventArgs e)
{
// create the demo items provider according to specified parameters
int numItems = int.Parse(tbNumItems.Text);
int fetchDelay = int.Parse(tbFetchDelay.Text);
DemoCustomerProvider customerProvider = new DemoCustomerProvider(numItems, fetchDelay);
// create the collection according to specified parameters
int pageSize = int.Parse(tbPageSize.Text);
int pageTimeout = int.Parse(tbPageTimeout.Text);
// ListView.ItemsSource プロパティに設定
if (rbNormal.IsChecked.Value)
{
// 同期する
DataContext = new List <Customer>(
customerProvider.GetRange(0, customerProvider.Count().Result).Result);
}
else if (rbVirtualizing.IsChecked.Value)
{
DataContext = new VirtualizingCollection <Customer>(customerProvider, pageSize);
}
else if (rbAsync.IsChecked.Value)
{
DataContext = new AsyncVirtualizingCollection <Customer>(customerProvider, pageSize);
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
// create the demo items provider according to specified parameters
int numItems = int.Parse(tbNumItems.Text);
int fetchDelay = int.Parse(tbFetchDelay.Text);
var customerProvider = new DemoCustomerProvider(numItems, fetchDelay);
// create the collection according to specified parameters
int pageSize = int.Parse(tbPageSize.Text);
int pageTimeout = int.Parse(tbPageTimeout.Text);
if (rbNormal.IsChecked.Value)
{
DataContext = new List <Customer>(customerProvider.FetchRange(0, customerProvider.FetchCount()));
}
else if (rbVirtualizing.IsChecked.Value)
{
DataContext = new VirtualizingCollection <Customer>(customerProvider, pageSize);
}
else if (rbAsync.IsChecked.Value)
{
DataContext = new AsyncVirtualizingCollection <Customer>(customerProvider, pageSize, pageTimeout * 1000);
}
}