public void NotifyFiltersChanged()
{
try
{
if (_subCategoryDisplayItem.AllProducts != null)
{
// Check if any filters have been enabled
var hasFilters = FilterGroups.Any(fg => fg.IsGroupFiltered);
if (hasFilters)
{
//Filter the list of Product Items from our Filter Groups
List <ProductListFilterItem> selectedFilterItems;
var filteredProducts = GetFilteredProducts(_subCategoryDisplayItem.AllProducts, FilterGroups.ToList(), out selectedFilterItems);
// Update the parent SubCategory with new filtered product list + enabled filters.
_subCategoryDisplayItem.SetFilteredProducts(filteredProducts, selectedFilterItems);
}
else
{
// Notify the parent Subcategory to reset products back to full unfiltered list
_subCategoryDisplayItem.ResetFilteredProducts();
}
}
}
catch (Exception ex)
{
string msg = ex.Message;
}
}
public virtual Condition BuildCondition(Type type, VariableResolver variableResolver = null, IEnumerable <string> validProperties = null, IDictionary <string, string> propertyMapping = null)
{
if (type == null)
{
throw new ArgumentNullException(nameof(type));
}
var arg = new BuildArgument
{
ValidProperties = validProperties,
VariableResolver = variableResolver,
EvaluationType = type,
PropertyMapping = propertyMapping
};
var error = new ConditionBase.ErrorInfo();
var result = new Condition();
var predicates = new List <LambdaExpression>();
var exceptions = new List <Exception>();
OrderByClause orderByClause = null;
if (Filters != null && Filters.Any())
{
var filtersResult = Filters.TryBuildPredicate(type, arg);
if (filtersResult.Succeeded)
{
predicates.Add(filtersResult.Result);
}
else
{
if (filtersResult.Exception != null)
{
exceptions.Add(filtersResult.Exception);
}
}
}
if (FilterGroups != null && FilterGroups.Any())
{
var filterGroupsResult = FilterGroups.TryBuildPredicate(type, arg);
if (filterGroupsResult.Succeeded)
{
predicates.Add(filterGroupsResult.Result);
}
else
{
if (filterGroupsResult.Exception != null)
{
exceptions.Add(filterGroupsResult.Exception);
}
}
}
if (!string.IsNullOrEmpty(Where))
{
var whereResult = ExpressionParser.Parse(Where, type, arg);
if (whereResult.Succeeded)
{
predicates.Add(whereResult.Result);
}
else
{
if (whereResult.Exception != null)
{
exceptions.Add(whereResult.Exception);
}
}
}
if (!string.IsNullOrWhiteSpace(OrderBy))
{
var orderByResult = OrderByParser.Parse(OrderBy, arg);
if (orderByResult.Succeeded)
{
orderByClause = orderByResult.Result;
}
else
{
if (orderByResult.Exception != null)
{
exceptions.Add(orderByResult.Exception);
}
}
}
else if (OrderBys != null && OrderBys.Any())
{
var orderBysResult = OrderByParser.Parse(OrderBys.ToArray(), arg);
if (orderBysResult.Succeeded)
{
orderByClause = orderBysResult.Result;
}
else
{
if (orderBysResult.Exception != null)
{
exceptions.Add(orderBysResult.Exception);
}
}
}
var isInvalid = arg.InvalidProperties.Any() || arg.InvalidOperators.Any() || arg.InvalidVariables.Any() || exceptions.Any();
result.IsValid = !isInvalid;
if (isInvalid)
{
error.EvaluationResult = new EvaluationResultBase
{
InvalidProperties = arg.InvalidProperties,
InvalidValues = arg.InvalidValues,
InvalidOperators = arg.InvalidOperators,
InvalidVariables = arg.InvalidVariables,
InvalidOrderByDirections = arg.InvalidOrderByDirections
};
error.Exceptions = exceptions;
result.Error = error;
}
else
{
result.Predicates = predicates;
result.OrderByClause = orderByClause;
}
return(result);
}