Searching in a List<string> for all lines with a string less than 10 characters

I have a file with a 5 columns (tab delimited) record per line.
I have a public class where I created public string for each column.
Using LINQ to find all lines where the fifth column has a string less than 10 characters.

	class VogueRec
	{
		public string DOMAIN { get; set; }//0
		public string CLASSNAME { get; set; } //1
		public string CLASS { get; set; }//2
		public string KEYNAME { get; set; }//3
		public string KEY { get; set; }//4
	}

What is the best way to have the result of a query populate a new List<string> from a FindAll search of List<string>1.KEY lenght of string is < 10 then write to a new List<string>.

			var lsCorrel = new List<VogueRec>();

		using (StreamReader sr = new StreamReader(fs))
		{
			while ((sData = sr.ReadLine()) != null)
			{
				if ((sData.IndexOf("\t")) == -1)
					sData = sr.ReadLine();//jump over the code page in an correl export.//ignore line 1.		
				else
				{
					#region READ USER
					aSplit = sData.Split('\t');
					while (aSplit[1] == "USER")
					{
						if (aSplit[3] != "CITY")
						{
							if (aSplit[3].IndexOf("CIT") == 0 || aSplit[3].IndexOf("VOICE") == 0)
							{
								lsCorrel.Add(new VogueRec()
								{
									DOMAIN = aSplit[0],
									CLASS = aSplit[2],
									KEYNAME = aSplit[3],
									KEY = aSplit[4].Substring(Math.Max(0, aSplit[4].Length - 5))
								});
							}
						}
						break;
					}
					#endregion
				}
			}
		}
		var result = lsCorrel.Where(v => v.KEY.Length < 10);

list.Where(v => v.KEY.Length < 10) maybe? What do you have so far? –
Charlieface
5 hours ago
worked. This is the answer my case.

You first read the data line by line and put the key value less than 10 in a list

column separator: Tab("\t")
Line separator: line

 public class TestReadFile
    {
        public List<VogueRec> Get()
        {
            string path = @"D:\f.txt";
            List<VogueRec> VogueRecs = new List<VogueRec>();
            using (StreamReader sr = new StreamReader(path))
            {
                while (sr.Peek() >= 0)
                {
                    string str;
                    string[] strArray;
                    str = sr.ReadLine();

                    strArray = str.Split('\t');
                    
                    if (strArray[4].Length < 10)
                    {
                        VogueRecs.Add(new VogueRec() { 
                            DOMAIN = strArray[0], CLASSNAME = strArray[1], CLASS = strArray[2], KEYNAME = strArray[3], KEY = strArray[4] 
                        });

                    }

                }

            }
            return VogueRecs;
        }


    }

Use

TestReadFile testReadFile = new TestReadFile();
var _list= testReadFile.Get();

Example

> fdfsf sdsds dddd dddd 142425414251
> asas ddd ssss ssss 14200
> asa sss dddd 222 ssss
> asa sss dd22d sss 14501235647

Result

> asas ddd ssss ssss 14200
> asa sss dddd 222 ssss