50 lines
1.6 KiB
C#
50 lines
1.6 KiB
C#
namespace System.Web.ModelBinding {
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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[AttributeUsage(AttributeTargets.Parameter, Inherited = false, AllowMultiple = false)]
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public sealed class SessionAttribute : ValueProviderSourceAttribute {
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public string Name {
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get;
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private set;
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}
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public SessionAttribute()
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: this(null) {
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}
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public SessionAttribute(string name) {
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Name = name;
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}
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public override IValueProvider GetValueProvider(ModelBindingExecutionContext modelBindingExecutionContext) {
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if (modelBindingExecutionContext == null) {
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throw new ArgumentNullException("modelBindingExecutionContext");
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}
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HttpSessionStateBase session = modelBindingExecutionContext.HttpContext.Session;
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if (session == null) {
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// session is disabled
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return null;
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}
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Dictionary<string, object> backingStore = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
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foreach (string key in session) {
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if (key != null) {
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backingStore[key] = session[key]; // copy to backing store
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}
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}
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// use the invariant culture since Session contains serialized objects
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return new DictionaryValueProvider<object>(backingStore, CultureInfo.InvariantCulture);
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}
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public override string GetModelName() {
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return Name;
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}
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}
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}
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