Sometimes you need to run through all conditions in your query to perform some operation for each condition or to find a particular one.
Starting from version 5.4 of EasyQuery.NET you can use Scan function for that:
query.Root.Scan(condition => {
//process only simple conditions (not groups)
if (!condition.IsGroup) {
//getting the "base" expression and attribute (the left part of the condition)
var baseExpr = condition.BaseExpr;
var baseAttr = condition.BaseAttr;
//here we run through all other expressions in this condition (except the first one) and check their values
for (int i = 1; i < condition.Expressions.Count; i++) {
var expr = condition.Expressions[i];
//special processing for sub-queries
if (expr is QueryExpr queryExpr) {
queryExpr.Query.Root.Scan(subCond => {
if (!subCond.IsGroup) {
//do whatever you need with this sub-condition
}
});
}
else {
//here how we get the value for any other expression (except the sub-query)
var value = expr.Value;
}
}
}
});