从循环 C# 添加到数组
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原文地址: http://stackoverflow.com/questions/12938937/
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add to array from a loop C#
提问by Spreadzz
How can i add to an array wich is in a foreach loop.
我如何添加到一个位于 foreach 循环中的数组。
pseudo example
伪例子
String[] mylist;
foreach ( ipadress ip in list )
{
i want to add to array ip.ToString();
}
then put my list to a textbox
采纳答案by Kundan Singh Chouhan
If you are using linq try this instead :
如果您使用的是 linq 试试这个：
String[] mylist = list.Select(I => Convert.ToString(I.ip)).ToArray();
回答by Kai
Quick and short:
快速而简短：
String[] myList;
List<int> intList = new List<int> { 1, 2, 3, 4 };
myList = intList.ConvertAll<String>(p => p.ToString()).ToArray<String>();
回答by tharindlaksh
int i=0;
String[] mylist;
foreach(ipaddress ip in list)
{
mylist[i]=ip.ToString();
i++
}
回答by MadHenchbot
First of all, if this is a homework problem, it should really be tagged as such.
首先，如果这是一个家庭作业问题，它真的应该被标记为这样。
Anyway, assuming you have complete control of the string[] you are passing values to, and assuming your ipaddress class has .ToString() overloaded to give you back some intelligent information:
无论如何，假设您可以完全控制要传递值的 string[]，并假设您的 ipaddress 类已重载 .ToString() 以返回一些智能信息：
string[] myList = new string[list.Count];
int i = 0;
foreach (IPAddress ip in list)
{
myList[i++] = ip.ToString();
}
Although I have to question why you are going back and forth between arrays and list objects to begin with.
尽管我不得不质疑您为什么要在数组和列表对象之间来回切换。
回答by Spreadzz
Figured it out...new to programming.., thanks to all. I used same code that tharindlaksh posted.
想通了……编程新手……谢谢大家。我使用了 tharindlaksh 发布的相同代码。
this is how it looks:
这是它的外观：
string[] all ;
int i = 0;
foreach (IPAddres ip in host.AddressList)
{
all[i] = ip.ToString();
i++;
}
textBoxMain.Text = all[0] + "\n" + all[1] + \n" + all[2] + "\n" + all[3];
