53 lines
1.8 KiB
C#
53 lines
1.8 KiB
C#
namespace System.Web.Mvc {
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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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public class DictionaryValueProvider<TValue> : IValueProvider {
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private readonly HashSet<string> _prefixes = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
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private readonly Dictionary<string, ValueProviderResult> _values = new Dictionary<string, ValueProviderResult>(StringComparer.OrdinalIgnoreCase);
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public DictionaryValueProvider(IDictionary<string, TValue> dictionary, CultureInfo culture) {
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if (dictionary == null) {
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throw new ArgumentNullException("dictionary");
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}
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AddValues(dictionary, culture);
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}
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private void AddValues(IDictionary<string, TValue> dictionary, CultureInfo culture) {
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if (dictionary.Count > 0) {
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_prefixes.Add("");
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}
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foreach (var entry in dictionary) {
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_prefixes.UnionWith(ValueProviderUtil.GetPrefixes(entry.Key));
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object rawValue = entry.Value;
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string attemptedValue = Convert.ToString(rawValue, culture);
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_values[entry.Key] = new ValueProviderResult(rawValue, attemptedValue, culture);
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}
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}
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public virtual bool ContainsPrefix(string prefix) {
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if (prefix == null) {
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throw new ArgumentNullException("prefix");
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}
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return _prefixes.Contains(prefix);
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}
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public virtual ValueProviderResult GetValue(string key) {
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if (key == null) {
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throw new ArgumentNullException("key");
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}
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ValueProviderResult vpResult;
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_values.TryGetValue(key, out vpResult);
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return vpResult;
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}
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}
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}
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