private void button_search_Click(object sender, RoutedEventArgs e)
{
Marketplace mkt = new Marketplace();
if (radioButton_byTitle.IsChecked == true)
{
mkt.SearchByBookTitle(textBox_search.Text);
//Is search by Book Title
}
if (radioButton_byAuthor.IsChecked == true)
{
mkt.SearchByAuthor(textBox_search.Text);
//If search by author
}
if (radioButton_byCourse.IsChecked == true)
{
string[] strArray = textBox_search.Text.Split();
mkt.SearchByCourse(strArray[0].Trim(), strArray[1].Trim());
//If search by course
}
if (radioButton_byISBN.IsChecked == true)
{
mkt.SearchByISBN(textBox_search.Text);
//if search by isbn
}
resultsListBox.ItemsSource = mkt.listings; //data binding
}