---
source_files:
  - DataPRO/Modules/Database/DatabaseServices/Converters/DbTypeToVisibilityConverter.cs
generated_at: "2026-04-17T16:44:02.991131+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "f33cb579dbf56959"
---

# Documentation: DbTypeToVisibilityConverter

## 1. Purpose

`DbTypeToVisibilityConverter` is a WPF `IMultiValueConverter` that determines the visibility of UI elements based on database connection type state. It bridges the view layer (`DatabaseStatusBarView`) and view model layer (`DatabaseStatusBarViewModel`) to conditionally show or hide elements depending on the current `DbType` configuration and connection status. This converter is specifically designed for the database status bar component in the application.

## 2. Public Interface

### `DbTypeToVisibilityConverter` (class)

Implements: `IMultiValueConverter`

#### `Convert(object[] values, Type targetType, object parameter, CultureInfo culture)`

**Signature:**
```csharp
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
```

**Behavior:** Converts database type information to a `Visibility` value.

- **`values[0]`**: Expected to be an integer value castable to `DbType` enum (the target database type being evaluated for visibility).
- **`values[1]`**: Expected to be a `DatabaseStatusBarView` instance.
- **Returns:** `Visibility.Visible` or `Visibility.Collapsed` based on the following logic:
  - If `view.DataContext` is `null`, returns `Visibility.Collapsed`.
  - If `vm.DatabaseType` is `DbType.RemoteOnly`: Visible only when `dbType == DbType.RemoteOnly`.
  - If `vm.DatabaseType` is `DbType.LocalOnly`: Visible only when `dbType == DbType.LocalOnly`.
  - If `vm.DatabaseType` is `DbType.RemoteLocalHybrid`:
    - When `vm.RemoteConnected` is `true`: Visible only when `dbType == DbType.RemoteOnly`.
    - When `vm.RemoteConnected` is `false`: Visible only when `dbType == DbType.RemoteLocalHybrid`.
  - All other cases: Returns `Visibility.Collapsed`.

#### `ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)`

**Signature:**
```csharp