75 lines
2.1 KiB
C#
75 lines
2.1 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.AspNetCore.Mvc.ModelBinding;
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namespace Microsoft.AspNetCore.Mvc
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{
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/// <summary>
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/// An attribute that can specify a model name or type of <see cref="IModelBinder"/> to use for binding.
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/// </summary>
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[AttributeUsage(
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// Support method parameters in actions.
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AttributeTargets.Parameter |
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// Support properties on model DTOs.
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AttributeTargets.Property |
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// Support model types.
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AttributeTargets.Class |
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AttributeTargets.Enum |
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AttributeTargets.Struct,
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AllowMultiple = false,
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Inherited = true)]
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public class ModelBinderAttribute : Attribute, IModelNameProvider, IBinderTypeProviderMetadata
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{
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private BindingSource _bindingSource;
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/// <summary>
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/// Initializes a new instance of <see cref="ModelBinderAttribute"/>.
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/// </summary>
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public ModelBinderAttribute()
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{
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}
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/// <summary>
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/// Initializes a new instance of <see cref="ModelBinderAttribute"/>.
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/// </summary>
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/// <param name="binderType">A <see cref="Type"/> which implements <see cref="IModelBinder"/>.</param>
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public ModelBinderAttribute(Type binderType)
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{
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if (binderType == null)
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{
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throw new ArgumentNullException(nameof(binderType));
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}
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BinderType = binderType;
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}
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/// <inheritdoc />
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public Type BinderType { get; set; }
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/// <inheritdoc />
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public virtual BindingSource BindingSource
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{
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get
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{
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if (_bindingSource == null && BinderType != null)
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{
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return BindingSource.Custom;
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}
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return _bindingSource;
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}
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protected set
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{
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_bindingSource = value;
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}
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}
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/// <inheritdoc />
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public string Name { get; set; }
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}
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} |