public void Add(
FilterExpression.BinaryOperation binaryOperator,
GridKnownFunction function,
params object[] values)
{
this.Add(new FilterPredicate(binaryOperator, function, values));
}
public FilterPredicate(
FilterExpression.BinaryOperation binaryOperator,
GridKnownFunction function)
{
this.binaryOperator = binaryOperator;
this.function = function;
this.filterFunction = FilterFunction.GetFilterFunction(this.function);
}
public FilterExpression(
string fieldName,
FilterExpression.BinaryOperation binaryOperation,
GridKnownFunction function,
params object[] values)
: this(binaryOperation, function, values)
{
this.PropertyName = fieldName;
}
public FilterExpression(
FilterExpression.BinaryOperation binaryOperation,
GridKnownFunction function,
params object[] values)
: this()
{
this.LogicalOperator = GridViewHelper.GetLogicalOperator(binaryOperation);
this.predicates.Add(new FilterPredicate(FilterExpression.BinaryOperation.AND, function, values));
}
public FilterPredicate(
FilterExpression.BinaryOperation binaryOperator,
GridKnownFunction function,
params object[] values)
: this(binaryOperator, function)
{
if (values == null)
{
return;
}
for (int index = 0; index < Math.Min(2, values.Length); ++index)
{
this.values.Add(values[index]);
}
}
private bool IsComposite(int range, List <FilterPredicate> predicates)
{
if (range <= 2 || range > predicates.Count)
{
return(false);
}
FilterExpression.BinaryOperation binaryOperator = predicates[0].BinaryOperator;
for (int index = 1; index < range; ++index)
{
if (predicates[index].BinaryOperator != binaryOperator)
{
return(true);
}
binaryOperator = predicates[index].BinaryOperator;
}
return(false);
}
internal static FilterLogicalOperator GetLogicalOperator(
FilterExpression.BinaryOperation binaryOperation)
{
return(binaryOperation == FilterExpression.BinaryOperation.OR ? FilterLogicalOperator.Or : FilterLogicalOperator.And);
}
