How to get the specific line last word from text file in C# windowsforms

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I have text file with 1000 of lines and i have a date for every line by using date i want to fetch that line and should display the last words in datagridview windows forms.
For ex:-my text like

2017/07/22 4:50 records inserted --------- 20
2017/07/20 5:55 records inserted --------- 15
2017/07/23 2:30 records inserted --------- 29

when i enter a date it want to display the record for that day

What I have tried:

when i enter a date it want to display the record for that day

Posted 26-Jul-17 20:25pm

Member 11416690

Updated 27-Jul-17 0:46am

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Graeme_Grant · Answer 1 · 2017-07-26T20:46:00

Solution 1

C#

string text = "2017/07/22 4:50 records inserted --------- 20\n2017 / 07 / 20 5:55 records inserted ---------15\r\n2017 / 07 / 23 2:30 records inserted ---------29\r";
var lines = text.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries).LastOrDefault();

Posted 26-Jul-17 20:46pm

Graeme_Grant

Comments

Member 11416690 31-Jul-17 4:55am

yaa you said right,but i have 10000 records in a text file.so i can't pass the string like what u said.so,Is there any way

Graeme_Grant 31-Jul-17 5:00am

Read and write in chunks and you can process very quickly. Ideally, you would be better off importing into a db like SQLite.

Atlapure Ambrish · Answer 2 · 2017-07-27T00:46:00

You can rad a text file line-by-line using below code and writ your logic to read last word.

string line;

// Read the file and display it line by line.
System.IO.StreamReader file = 
   new System.IO.StreamReader("c:\\test.txt");
while((line = file.ReadLine()) != null)
{
   string lastWord = line.Split(' ').Last();
}

file.Close();

If you do not have LINQ or do not want to use, below is the code..

string[] parts = line.Split(' ');
     string lastWord = parts[parts.Length - 1];