ILearningModelVariableDescriptorPreview.IsRequired 属性

定义

命名空间:

Windows.AI.MachineLearning.Preview

已弃用。 获取变量是必需变量还是可选变量。

public:
 property bool IsRequired { bool get(); };

/// [get: Windows.Foundation.Metadata.Deprecated("Use ILearningModelFeatureDescriptor instead of ILearningModelVariableDescriptorPreview. For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 131072, "Windows.AI.MachineLearning.Preview.MachineLearningPreviewContract")]
bool IsRequired();

public bool IsRequired { [Windows.Foundation.Metadata.Deprecated("Use ILearningModelFeatureDescriptor instead of ILearningModelVariableDescriptorPreview. For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 131072, "Windows.AI.MachineLearning.Preview.MachineLearningPreviewContract")] get; }

var boolean = iLearningModelVariableDescriptorPreview.isRequired;

Public ReadOnly Property IsRequired As Boolean

属性值

Boolean

bool

如果变量是必需的，则为 True;否则为 false。

属性

DeprecatedAttribute

示例

public void Evaluator(LearningModelPreview model)
{
	// Retrieve the first input feature which is an image
    ILearningModelVariableDescriptorPreview inputImageFeatureDescription = model.Description.InputFeatures.FirstOrDefault(feature=>feature.ModelFeatureKind == LearningModelFeatureKindPreview.Image);

    ImageVariableDescriptorPreview imageDescriptor = (ImageVariableDescriptorPreview)inputImageFeatureDescription;

	//Verify if the input feature is required or optional.
    if (imageDescriptor.IsRequired == true)
    {
        Console.WriteLine($"Input Feature Name: {imageDescriptor.Name} is required.");
    }
 }

注解

警告

这是一个已弃用的 API。 请改用 Windows.AI.MachineLearning 命名空间。