Sometimes you need to run through all conditions in your query to perform some operation for each condition or to find a particular one. Here is a code snippet which demonstrates this operation:
private void RunThroughConditions(Predicate predicate) { foreach (Condition cond in predicate.Conditions) { if (cond is SimpleCondition) { SimpleCondition scond = (SimpleCondition)cond; if (scond.BaseExpr is EntityAttrExpr) { EntityAttrExpr attrExpr = (EntityAttrExpr)scond.BaseExpr; //here is the attribute of this condition EntityAttr attr = attrExpr.Attribute; //here is condition operator Operator op = scond.Operator; //now we run through all expressions in this condition (except the first one) and check their values for (int i = 1; i < scond.Expressions.Count; i++) { Expression expr = scond.Expressions[i]; string value = expr.Value; string text = expr.Text; } } } else if (cond is Predicate) { RunThroughConditions((Predicate)cond); } } } . . . . . . . . . . . //to start the process just call this function for the Root predicate in your Query RunThroughConditions(query1.Root);