How can I create a format that all items in a List/Text file have to conform to? C#

Question

I am writing a program that displays data coming in from an Arduino. At the moment I am getting a few errors while filtering out parts of data coming in. Data is collected through serial port in small clumps of data every 100ms (lots of data). I want to be able to create a format for all data that is kept in the string, so that all of the data is useful.

Data is displayed to a RichTextBox using CanText.Append(string.Join("\n", dataList)); where dataList is a list of all data coming in. IDs that are wanting to be deleted are stored in filteredIDs (list) in the format of "ID: 201"

Example of Data
ID: 201, Data: 0 0 40 0 0 0 0 80
ID: 201, Data: 0 0 40 0 0 0 0 80
ID: 20F, Data: FF FF 27 10 40 0 FF 77
ID: 190, Data: 0 53 0 0 3C 1 0 3C
ID: 20F, Data: FF FF 27 10 40 0 FF 7D
ID: 280, Data: 0 9
ID: 201, Data: 0 0 40 0 0 0 0 80
ID: 231, Data: 1 6F 64 0 0 0 80
ID: 205, Data: 2 95 1 F5 3 F4 1 F5
ID: 201, Data: 0 0 40 0 0 0 0 80
ID: 4B0, Data: 27 10 27 10 27 10 27 10
ID: 20F, Data: FF FF 27 10 40 0 FF 98
ID: 20F, Data: FF FF 27 10 40 0 FF 9B
ID: 190, Data: 0 54 0 0 3C 1 0 3C
ID: 4B0, Data: 27 10 27 10 27 10 27 10
ID: 280, Data: 0 9
ID: 20F, Data: FF FF 27 10 40 0 FF AA
ID: 433, Data: 80 4 50 1 0 A0 0 0
ID: 20F, Data: FF FF 27 10 40 0 FF AF
ID: 280, Data: 0 9

What i am using to filter my data

		`foreach (var filterID in filteredIDs)  
		{  
			dataList.RemoveAll(x => x.Contains(filterID));  

		}`  

Which seems to work with 1 or 2 values in filteredIDs, but when more are added to the list this is displayed instead.

Data: C 7 C F2 E BB 2C 63
CE 44 49 38 7E 4C 2B 1
D9 90 A5 B AF
E D1 A5 BE 31
ID: 202, Data: 1C 20 F CB 43 D9 42 7
7 F B0
ID: 205, Data: 86 1F B3 61 C3 5F 88 40
ID: 206, Data: 65 FB A0 A4 50 4E 19 D1
Data: D8 4B 24 87 C5 4C 2D 19
ta: 8B 77 74 F3 C AD 79 D1
5 3F 9D 47 E6 A4 8D 76
B 58 D7 E9 A4
ID: 202, Data: B3 E2 64 8C FD 82 EE 4F
7C 6E AF F6
ID: 202, Data: 8E BE 75 32 3 64 38 D
ID: 202, Data: 7A C9 CC 6E 8D 43 E7 C3
1D 5F BD
F9 F5 5F
ID: 202, Data: B0 81 28 E4 23 5D 6C 20
ID: 202, Data: DE EA C0 CE F0 D B4 A2

I was wondering if there was a way to remove all of the items in the list/ lines that are not in the format "ID: NUM, Data: XX XX XX XX XX XX XX XX"

Answer 1

@Charlie Gale , you could try the following code to remove all of the items in the list/ lines that are not in the format "ID: NUM, Data: XX XX XX XX XX XX XX XX".

  string []lines=File.ReadAllLines(@"Tool.txt");  
  var  result = lines.ToList().Where(x => x.StartsWith("ID")&&x.Contains("Data"));  

Result:

Hope my code could help you.

Best Regards,
Jack

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