protected virtual void Expand()
{
var endState = !IsExpanded;
//foreach (var ele in this.Siblings)
// ele.IsExpanded = false;
//Walk down the tree expanding anything nested one layer deep
//this can be removed when we have the hierachy implemented properly
if (Items.Count == 1 && SubCategories.Any())
{
var subElement = SubCategories[0];
while (subElement.Items.Count == 1)
{
subElement.IsExpanded = true;
if (subElement.SubCategories.Any())
{
subElement = subElement.SubCategories[0];
}
else
{
break;
}
}
subElement.IsExpanded = true;
}
IsExpanded = endState;
}
protected virtual void Expand()
{
var endState = !IsExpanded;
foreach (var ele in SubCategories.Where(cat => cat.IsExpanded))
{
ele.IsExpanded = false;
}
//Walk down the tree expanding anything nested one layer deep
//this can be removed when we have the hierachy implemented properly
if (Items.Count == 1 && SubCategories.Any())
{
var subElement = SubCategories[0];
while (subElement.Items.Count == 1)
{
subElement.IsExpanded = true;
if (subElement.SubCategories.Any())
{
subElement = subElement.SubCategories[0];
}
else
{
break;
}
}
subElement.IsExpanded = true;
}
IsExpanded = endState;
if (TreeViewItems != null)
{
//ClassDetails.IsExpanded = IsExpanded;
TreeViewItems[0].IsExpanded = IsExpanded;
}
OnRequestReturnFocusToSearch();
}
private void Back()
{
switch (Mode)
{
case ArticleSelectorModes.ArticleSelection:
//// If an article is selected, reset quantity and unselect article
//if (SelectedArticle != null)
//{
// SelectedArticle = null;
// Quantity = 1;
//}
//// Else, go up to subcategory or category
//else
//{
// if no subcategories, back to category selection
if (SubCategories.Any())
{
SelectedSubCategory = null;
Mode = ArticleSelectorModes.SubCategorySelection;
}
else
{
SelectedCategory = null;
Mode = ArticleSelectorModes.CategorySelection;
}
//}
break;
case ArticleSelectorModes.SubCategorySelection:
SelectedCategory = null;
Mode = ArticleSelectorModes.CategorySelection;
break;
default:
throw new InvalidOperationException($"Cannot use back button in mode {Mode}");
}
RaisePropertyChanged(() => CurrentlyDisplayedCollection);
}
private void SelectCategoryOrSubCategory(string categoryOrSubCategory)
{
if (Mode == ArticleSelectorModes.CategorySelection)
{
SelectedCategory = categoryOrSubCategory;
// if no subcategories, direct article selection
if (SubCategories.Any())
{
Mode = ArticleSelectorModes.SubCategorySelection;
}
else
{
Mode = ArticleSelectorModes.ArticleSelection;
}
}
else if (Mode == ArticleSelectorModes.SubCategorySelection)
{
Mode = ArticleSelectorModes.ArticleSelection;
SelectedSubCategory = categoryOrSubCategory;
}
RaisePropertyChanged(() => CurrentSelectionPath);
RaisePropertyChanged(() => CurrentlyDisplayedCollection);
}
public override bool CanDelete()
{
return(!Components.Any() && !SubCategories.Any());
}