在c#中使用for循环检查列表中是否存在字符串

Question

I have a list arrString that contains string values. I need to check a string lookupvalue.Longname whether it exists in the list using for loop in C#.

 for(int i = 0 ;i < ResoCustomFields.LongnameNotToBeTaken.Count ;i++)
 {
    string myStringList = ResoCustomFields.LongnameNotToBeTaken[i].ToString();
    var arrString = myStringList.Trim('(',')').Split(',').ToList();
    if(arrString.Contains(resoField))
    {
    // if(!arrString[i].Any(str=>str.ToString().Contains(lookupValue.LongName)))
    // if(lookupValue.LongName.Contains(arrString.ToString()))
    //(!arrString.Any(str => str.Equals(lookupValue.LongName)))
    // if(!arrString.Equals(lookupValue.LongName))                                                      
    {
    }
}

Answer 1

You can try the following code :

int pos = Array.IndexOf(arrString, lookupValue.LongName);
if (pos > -1)
{
//// DO YOUR STUF
}

Following is the reference:

Checking if a string array contains a value, and if so, getting its position