# Class AggregatingDesignerAutocompleteProvider

OptimaJet.Workflow.Core.Runtime.AggregatingDesignerAutocompleteProvider

Combines suggestions from every applicable [IDesignerAutocompleteProvider](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/IDesignerAutocompleteProvider/) implementation.

Namespace: [OptimaJet.Workflow.Core.Runtime](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/)

```csharp
public class AggregatingDesignerAutocompleteProvider : BaseAggregatingProvider<IDesignerAutocompleteProvider>, IDesignerAutocompleteProvider
```

## Type Hierarchy

-   [BaseAggregatingProvider<IDesignerAutocompleteProvider>](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/BaseAggregatingProvider-T/)
    -   AggregatingDesignerAutocompleteProvider Current type
        -   Implemented interfaces
            -   [IDesignerAutocompleteProvider](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/IDesignerAutocompleteProvider/)

## Methods

`public List<string> GetAutocompleteSuggestions(SuggestionCategory category, string value, string schemeCode)` 

Gets a list of autocomplete suggestion strings for the specified category and context.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `category` | `SuggestionCategory` | The suggestion category that determines the editor context. |
| `value` | `String` | The rule, action, or condition name used as context for suggestions. |
| `schemeCode` | `String` | The scheme code for which suggestions are requested. |

### Returns

| Type | Description |
| --- | --- |
| `List<String>` | A list of suggestion strings to display, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) when no suggestions are available. |

### Remarks

The same `category`, `value`, and `schemeCode` values are passed to every applicable provider. Results are appended in provider priority order without deduplication.

## Remarks

For a scheme, both global providers and providers registered specifically for that scheme are applicable. Providers are queried from the most recently registered to the earliest, regardless of registration scope. Unlike single-result aggregators, this provider queries every applicable provider and appends every non-null, non-empty result. It preserves provider result order and does not remove duplicate suggestions.

[Previous AggregatingActionProvider](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/AggregatingActionProvider/) [Next AggregatingDesignerParameterFormatProvider](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/AggregatingDesignerParameterFormatProvider/)