private void SearchButton_Click(object sender, RoutedEventArgs e)
{
// Clear previous entries
ClearBlocks();
definitionsComboBox.Items.Clear();
// Check to see if input is empty or invalid
if (inputTextBox.Text == null || inputTextBox.Text == "")
{
return;
}
// Webreqest to UrbanDictionary to find all similar definition entries
DefinitionList list = Lookup.LookupDefinitions(inputTextBox.Text);
// Final check to see if the results were null
if (list == null || list.definitions == null || list.definitions.Count == 0)
{
definitionsComboBox.IsEnabled = false;
return;
}
// Add results to the ComboBox
foreach (Definition def in list.definitions)
{
definitionsComboBox.Items.Add(def);
}
// Make sure the ComboBox is enabled
definitionsComboBox.IsEnabled = true;
// Set the current selected ComboBox option to the most apporopriate
definitionsComboBox.SelectedValue = DefinitionHandler.FindBestDefinition(list, inputTextBox.Text) ?? definitionsComboBox.Items[0] ?? null;
}
public static Definition FindBestDefinition(DefinitionList list, string searchTerm)
{
foreach (Definition definition in list.definitions)
{
if (definition.word == searchTerm)
{
return(definition);
}
}
return(null);
}
// Main method for looking up a string on UrbanDictionary
public static DefinitionList LookupDefinitions(string searchTerm)
{
// Initial response from the website
string response = null;
try
{
// Simple webrequest
using (var request = new WebClient())
{
response = request.DownloadString("http://api.urbandictionary.com/v0/define?term=" + "\"" + searchTerm + "\"");
}
}
// If webrequest fails or returns nothing
catch (Exception e)
{
System.Windows.MessageBox.Show(e.ToString(), "There was an error contacting a dictionary", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error, System.Windows.MessageBoxResult.OK);
}
// Check that the response is valid and not empty
if (response == null || response == "")
{
System.Windows.MessageBox.Show("Could not connect to a dictionary", "Error!", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error, System.Windows.MessageBoxResult.OK);
}
// Convert response to an actual object
DefinitionList list = ConvertToDefinitionList(response);
// Check if there were at least one definition returned
if (list.definitions.Count == 0)
{
System.Windows.MessageBox.Show("No definitions were found!", "Error!", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error, System.Windows.MessageBoxResult.OK);
}
return(list);
}
