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//-----------------------------------------------------------------------
// <copyright file="DictionaryExtensions.cs" company="Microsoft">
// Copyright (c) Microsoft. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.AspNet.Clients {
using System;
using System.Collections.Generic;
using System.Xml.Linq;
/// <summary>
/// The dictionary extensions.
/// </summary>
internal static class DictionaryExtensions {
/// <summary>
/// Adds the value from an XDocument with the specified element name if it's not empty.
/// </summary>
/// <param name="dictionary">
/// The dictionary.
/// </param>
/// <param name="document">
/// The document.
/// </param>
/// <param name="elementName">
/// Name of the element.
/// </param>
public static void AddDataIfNotEmpty(
this Dictionary<string, string> dictionary, XDocument document, string elementName) {
var element = document.Root.Element(elementName);
if (element != null) {
dictionary.AddItemIfNotEmpty(elementName, element.Value);
}
}
/// <summary>
/// Adds a key/value pair to the specified dictionary if the value is not null or empty.
/// </summary>
/// <param name="dictionary">
/// The dictionary.
/// </param>
/// <param name="key">
/// The key.
/// </param>
/// <param name="value">
/// The value.
/// </param>
public static void AddItemIfNotEmpty(this IDictionary<string, string> dictionary, string key, string value) {
if (key == null) {
throw new ArgumentNullException("key");
}
if (!string.IsNullOrEmpty(value)) {
dictionary[key] = value;
}
}
}
}
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