learningmodelsession_learningmodelsession_933369685.md

-api-id	-api-type	ms.custom
M:Windows.AI.MachineLearning.LearningModelSession.#ctor(Windows.AI.MachineLearning.LearningModel)	winrt method	RS5

Windows.AI.MachineLearning.LearningModelSession.LearningModelSession

-description

Creates a session using the default device.

-parameters

-param model

The trained machine learning model for this session.

-remarks

Windows Server

To use this API on Windows Server, you must use Windows Server 2019 with Desktop Experience.

Thread safety

This API is thread-safe.

-see-also

-examples

The following example loads a model and creates an evaluation session with it.

private async Task LoadModelAsync(LearningModel _model, string _modelFileName, LearningModelSession _session)
{
    // Only load the model one time.
    if (_model != null) return;

    try
    {
        // Load and create the model
        var modelFile = 
            await StorageFile.GetFileFromApplicationUriAsync(new Uri($"ms-appx:///Assets/{_modelFileName}"));
        _model = await LearningModel.LoadFromStorageFileAsync(modelFile);

        // Create the evaluation session with the model and device.
        _session = new LearningModelSession(_model);
    }
    catch (Exception ex)
    {
        StatusBlock.Text = $"error: {ex.Message}";
        _model = null;
    }
}