如何在 C# 中合并/合并两个 StringCollection
var collection1 = new StringCollection () { "AA", "BB", "CC" };
var collection2 = new StringCollection () { "DD", "EE", "FF" };
var resultCollection = collection1 + collection2 ; // TODO
如何在 C# 中合并/合并两个 StringCollection
var collection1 = new StringCollection () { "AA", "BB", "CC" };
var collection2 = new StringCollection () { "DD", "EE", "FF" };
var resultCollection = collection1 + collection2 ; // TODO
您可以将所有内容复制到这样的数组中
var collection1 = new StringCollection() { "AA", "BB", "CC" };
var collection2 = new StringCollection() { "DD", "EE", "FF" };
var array = new string[collection2.Count + collection1.Count];
collection1.CopyTo(array, 0);
collection2.CopyTo(array, collection1.Count);
如果您仍然想要一个字符串集合,您可以使用AddRange
var collection1 = new StringCollection () { "AA", "BB", "CC" };
var collection2 = new StringCollection () { "DD", "EE", "FF" };
var resultCollection = new StringCollection();
resultCollection.AddRange(collection1.Cast<string>.ToArray());
resultCollection.AddRange(collection2.Cast<string>.ToArray());
似乎很奇怪,StringCollection
没有任何直接支持添加其他StringCollection
s。如果效率是一个问题,Beingnin 的答案可能比这里的答案更有效,如果您仍然需要它,StringCollection
您可以获取生成的数组并用于AddRange
将该字符串数组添加到新的StringCollection
您可以转换为数组并使用Union,请注意这也会删除重复项
var resultCollection = collection1.Cast<string>().Union(collection2.Cast<string>())
您可以占用 List 而不是 StringCollection ...
var collection1 = new List<string>() { "AA", "BB", "CC" };
var collection2 = new List<string>() { "DD", "EE", "FF" };
var resultCollection = collection1.Concat(collection2).ToList();