public static bool HasCondition(this FilterExpression filter, string entityName, params object[] columnNameAndValuePairs)
{
var tmp = new FilterExpression();
// match all conditions one at a time.
foreach (var condition in tmp.WhereEqual(entityName, columnNameAndValuePairs).Conditions)
{
if (!filter.HasCondition(condition))
{
return(false);
}
}
return(true);
}