28 lines
1.4 KiB
C#
28 lines
1.4 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 System.Linq.Expressions;
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namespace Microsoft.AspNetCore.Mvc.ViewFeatures
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{
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/// <summary>
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/// Provides <see cref="ModelExpression"/> for a Lambda expression.
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/// </summary>
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public interface IModelExpressionProvider
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{
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/// <summary>
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/// Returns a <see cref="ModelExpression"/> instance describing the given <paramref name="expression"/>.
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/// </summary>
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/// <typeparam name="TModel">The type of the <paramref name="viewData"/>'s <see cref="ViewDataDictionary{T}.Model"/>.</typeparam>
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/// <typeparam name="TValue">The type of the <paramref name="expression"/> result.</typeparam>
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/// <param name="viewData">The <see cref="ViewDataDictionary{TModel}"/> containing the <see cref="ViewDataDictionary{T}.Model"/>
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/// against which <paramref name="expression"/> is evaluated. </param>
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/// <param name="expression">An expression to be evaluated against the current model.</param>
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/// <returns>A new <see cref="ModelExpression"/> instance describing the given <paramref name="expression"/>.</returns>
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ModelExpression CreateModelExpression<TModel, TValue>(
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ViewDataDictionary<TModel> viewData,
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Expression<Func<TModel, TValue>> expression);
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}
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}
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