WebNov 21, 2005 · How does one determine the number of lines before using ReadLine. This would enable the ReDim to be out of the loop. sReader = New StringReader(xxx.GetObjectText_) If Not (sReader Is Nothing) Then i = -1 Do Until sReader.Peek = -1 i = i + 1 ReDim Preserve yyy(i) ' yyy is typed as String yyy(i) = … WebMar 21, 2024 · The StreamReader will free resources on its own. string line; using ( StreamReader reader = new StreamReader ( "file.txt" )) { line = reader.ReadLine (); } Console.WriteLine (line); } } First line of your file.txt file. While loop. Next, we see an alternate syntax form for the inner-loop in the StreamReader.
Is it OK to use while ((line = r.readLine()) != null) construct?
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C# Read String Line by Line : C# 411 - CSharp411.com
WebFeb 20, 2024 · StringReader. In C# there are many ways to separate a string into lines. With StringReader, we read lines from a string individually in the order they appear. ... WebStringReader enables you to read a string synchronously or asynchronously. You can read a character at a time with the Read or the ReadAsync method, a line at a time using the ReadLine or the ReadLineAsync method and an entire string using the ReadToEnd or the ReadToEndAsync method. WebDec 10, 2011 · The StringReader class is built from a string and provides methods Read and ReadLine to read parts of that string. The StringWriter class is used to write to a StringBuilder class (from the System.Text namespace). Since strings in C# are immutable, the StringBuilder class is used to build a string efficiently. StringWriter provides methods … green card may 2022 predictions