/// <summary>
/// Handles the button click on the ok button
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnOk_Click(object sender, RoutedEventArgs e)
{
Button btnOk = (Button)sender;
ListView filterListView = (ListView)btnOk.Tag;
// navigate up to the header to obtain the filter property name
GridViewColumnHeader header = (GridViewColumnHeader)UIHelpers.FindElementOfTypeUp(filterListView, typeof(GridViewColumnHeader));
SortableGridViewColumn column = (SortableGridViewColumn)header.Column;
String currentFilterProperty = column.SortPropertyName;
var items = new List <FilterItem>();
foreach (object o in filterListView.Items)
{
var item = (FilterItem)o;
if (item.IsChecked)
{
items.Add(item);
}
}
if (items.Exists(i => i.ItemView.Equals("Clear")))
{
if (currentFilters.ContainsKey(currentFilterProperty))
{
FilterStruct filter = (FilterStruct)currentFilters[currentFilterProperty];
filter.button.ContentTemplate = (DataTemplate)dictionary["filterButtonInactiveTemplate"];
if (FilterButtonInactiveStyle != null)
{
filter.button.Style = FilterButtonInactiveStyle;
}
currentFilters.Remove(currentFilterProperty);
}
ApplyCurrentFilters();
}
else
{
// find the button and apply the active style
Button button = (Button)UIHelpers.FindVisualElement(header, "filterButton");
button.ContentTemplate = (DataTemplate)dictionary["filterButtonActiveTemplate"];
if (FilterButtonActiveStyle != null)
{
button.Style = FilterButtonActiveStyle;
}
AddFilters(currentFilterProperty, items.ToArray(), button);
ApplyCurrentFilters();
}
// navigate up to the popup and close it
Popup popup = (Popup)UIHelpers.FindElementOfTypeUp(filterListView, typeof(Popup));
popup.IsOpen = false;
}
/// <summary>
/// Handles the selection change event from the filter popup
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void SelectionChangedHandler(object sender, SelectionChangedEventArgs e)
{
// obtain the term to filter for
ListView filterListView = (ListView)sender;
FilterItem filterItem = (FilterItem)filterListView.SelectedItem;
// navigate up to the header to obtain the filter property name
GridViewColumnHeader header = (GridViewColumnHeader)UIHelpers.FindElementOfTypeUp(filterListView, typeof(GridViewColumnHeader));
SortableGridViewColumn column = (SortableGridViewColumn)header.Column;
String currentFilterProperty = column.SortPropertyName;
if (filterItem == null)
{
return;
}
// determine whether to clear the filter for this column
if (filterItem.ItemView.Equals("Clear"))
{
if (currentFilters.ContainsKey(currentFilterProperty))
{
FilterStruct filter = (FilterStruct)currentFilters[currentFilterProperty];
filter.button.ContentTemplate = (DataTemplate)dictionary["filterButtonInactiveTemplate"];
if (FilterButtonInactiveStyle != null)
{
filter.button.Style = FilterButtonInactiveStyle;
}
currentFilters.Remove(currentFilterProperty);
}
ApplyCurrentFilters();
}
else
{
// find the button and apply the active style
Button button = (Button)UIHelpers.FindVisualElement(header, "filterButton");
button.ContentTemplate = (DataTemplate)dictionary["filterButtonActiveTemplate"];
if (FilterButtonActiveStyle != null)
{
button.Style = FilterButtonActiveStyle;
}
AddFilter(currentFilterProperty, filterItem, button);
ApplyCurrentFilters();
}
// navigate up to the popup and close it
Popup popup = (Popup)UIHelpers.FindElementOfTypeUp(filterListView, typeof(Popup));
popup.IsOpen = false;
}