如何从逗号分隔的字符串中查找给定的文本是否可用. [英] How to find whether a given text is avilable from comma separated string.

问题描述

嗨
我有一个字符串，其中所有系统名称均以逗号分隔.
示例:

Hi
I have a string which has all the system names in a comma separated form.
Example:

string systemNames="system1,system2,system3,system4";

从此字符串中，我需要找到一个系统名称，无论该系统名称是否存在.

例如

From this string I need to find a system name whether the system name exists or not.

For example

I give "system1 " I should get as "TRUE"<br />
I give "system10" I should get as "False"<br />

请帮助我解决此问题，该代码应具有任何循环.

Kindly Help me to solve this , The code should have any Loop.

推荐答案

private bool SystemExists(string systemName)
{
    text = text.Trim().ToLower();
    string[] parts = systemNames.Split(',');
    int count = (from part in parts
                 where part.Trim().ToLower() == systemName
                 select part).Count();
    return (count > 0);
}

如果要区分大小写，只需删除对string.ToLower()的调用.

编辑===========

为什么将此票选为1?这是正确的，并且可以满足OP的规定需求.

If you want it to be case-sensitive, just remove the calls to string.ToLower().

EDIT ===========

Why was this voted a 1? It''s correct, and fulfills the stated needs of the OP.

如果字符串的模式保持不变，则可以使用以下代码:

If the pattern of the string remains the same, you cna use this:

string inputValue = originalInput + ",";
bool result = systemNames.ToUpper().Contains(inputValue.ToUpper());

我不确定Contains方法是否有任何IgnoreCase重载.如果有，您可以使用它.您还可以在任何需要的地方进行修整.

I am not sure if there is any IgnoreCase overload for the Contains method. If there is, you can use that. You can also do trimming wherever needed.

使用如下所示的拆分功能:

Use split function like this :

string systemNames = "system1,system2,system3,system4";
String[] arr = systemNames.Split(',');

String mySystemName="System1";

foreach(String system in arr)
{
    if(system.Equals(mySystemName))
    {
        //You have found the system
    }
}

希望能有所帮助！ :)

Hope it helped! :)

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