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Close| key | The key of the information. |
| value | The value of the information. |
IQueryEngineFilter The current filter.
Add or update additional information specific to the filter.
You can use this function to add additional information on the filter.
// Add a description to the filter
var descriptionKey = "desc";
var descriptionValue = "This filters the objects based on their id.";
var exampleKey = "example";
var exampleValue = "id>10 or id=2";
queryEngine.TryGetFilter("id", out var filter);
filter.AddOrUpdateMetaInfo(descriptionKey, descriptionValue)
.AddOrUpdateMetaInfo(exampleKey, exampleValue);
You can then retrieve that information by accessing the metaInfo property directly.
var descriptionKey = "desc"; var allFilters = queryEngine.GetAllFilters(); var filtersWithDescription = allFilters.Where(f => f.metaInfo.ContainsKey(descriptionKey));
See metaInfo for a complete example.