public static void AddIfNotContains <T>(this ICollection <T> source, IEnumerable <T> items)
{
source.CheckNotNull(nameof(source));
items.CheckNotNull(nameof(source));
foreach (var item in items)
{
source.AddIfNotContains(item);
}
}
/// <summary>
/// 如果不包含，则添加
/// </summary>
/// <param name="this"></param>
/// <param name="items">匹配项集合</param>
/// <typeparam name="T">集合中元素的类型</typeparam>
/// <exception cref="NotSupportedException"> <paramref name="this" /> maybe is read-only</exception>
/// <example>
/// <code>
/// <![CDATA[
/// var list = new List<string> {"aa", "bb"};
/// var appendList = new[] {"cc", "aa"};
/// list.AddIfNotContains(appendList);
/// // {"aa", "bb", "cc"}
/// ]]>
/// </code>
/// </example>
public static void AddIfNotContains <T>(this ICollection <T> @this, IEnumerable <T> items)
{
if (@this == null || items == null)
{
return;
}
foreach (var item in items)
{
@this.AddIfNotContains(item);
}
}
/// <summary>
/// 如果不包含，则添加
/// </summary>
/// <param name="this"></param>
/// <param name="items">匹配项集合</param>
/// <typeparam name="T">集合中元素的类型</typeparam>
/// <exception cref="NotSupportedException"> <paramref name="this" /> maybe is read-only</exception>
/// <example>
/// <code>
/// <![CDATA[
/// var list = new List<string> {"aa", "bb"};
/// list.AddIfNotContains("cc", "aa");
/// // {"aa", "bb", "cc"}
/// ]]>
/// </code>
/// </example>
public static void AddIfNotContainsParams <T>(this ICollection <T> @this, params T[] items)
{
@this.AddIfNotContains(items);
}
