102 lines
3.4 KiB
C#
102 lines
3.4 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System;
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using Microsoft.AspNet.Mvc.Abstractions;
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namespace Microsoft.AspNet.Mvc.ModelBinding.Metadata
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{
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/// <summary>
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/// A key type which identifies a <see cref="ModelMetadata"/>.
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/// </summary>
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public struct ModelMetadataIdentity
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{
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/// <summary>
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/// Creates a <see cref="ModelMetadataIdentity"/> for the provided model <see cref="Type"/>.
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/// </summary>
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/// <param name="modelType">The model <see cref="Type"/>.</param>
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/// <returns>A <see cref="ModelMetadataIdentity"/>.</returns>
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public static ModelMetadataIdentity ForType(Type modelType)
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{
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if (modelType == null)
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{
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throw new ArgumentNullException(nameof(modelType));
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}
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return new ModelMetadataIdentity()
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{
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ModelType = modelType,
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};
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}
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/// <summary>
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/// Creates a <see cref="ModelMetadataIdentity"/> for the provided property.
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/// </summary>
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/// <param name="modelType">The model type.</param>
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/// <param name="name">The name of the property.</param>
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/// <param name="containerType">The container type of the model property.</param>
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/// <returns>A <see cref="ModelMetadataIdentity"/>.</returns>
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public static ModelMetadataIdentity ForProperty(
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Type modelType,
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string name,
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Type containerType)
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{
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if (modelType == null)
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{
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throw new ArgumentNullException(nameof(modelType));
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}
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if (containerType == null)
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{
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throw new ArgumentNullException(nameof(containerType));
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}
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if (string.IsNullOrEmpty(name))
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{
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throw new ArgumentException(Resources.ArgumentCannotBeNullOrEmpty, nameof(name));
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}
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return new ModelMetadataIdentity()
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{
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ModelType = modelType,
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Name = name,
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ContainerType = containerType,
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};
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}
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/// <summary>
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/// Gets the <see cref="Type"/> defining the model property respresented by the current
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/// instance, or <c>null</c> if the current instance does not represent a property.
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/// </summary>
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public Type ContainerType { get; private set; }
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/// <summary>
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/// Gets the <see cref="Type"/> represented by the current instance.
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/// </summary>
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public Type ModelType { get; private set; }
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/// <summary>
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/// Gets a value indicating the kind of metadata represented by the current instance.
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/// </summary>
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public ModelMetadataKind MetadataKind
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{
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get
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{
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if (ContainerType != null && Name != null)
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{
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return ModelMetadataKind.Property;
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}
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else
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{
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return ModelMetadataKind.Type;
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}
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}
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}
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/// <summary>
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/// Gets the name of the current instance if it represents a parameter or property, or <c>null</c> if
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/// the current instance represents a type.
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/// </summary>
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public string Name { get; private set; }
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}
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} |