C# - Check if File is Text Based

Question

How can I test whether a file that I\'m opening in C# using FileStream is a \"text type\" file? I would like my program to open any file that is text based, for example, .t

Answer 1

I have a below solution which works for me.This is general solution which check all types of Binary file.

     /// 

     /// This method checks whether selected file is Binary file or not.
     /// 
     
     public bool CheckForBinary()
     {

             Stream objStream = new FileStream("your file path", FileMode.Open, FileAccess.Read);
             bool bFlag = true;

             // Iterate through stream & check ASCII value of each byte.
             for (int nPosition = 0; nPosition < objStream.Length; nPosition++)
             {
                 int a = objStream.ReadByte();

                 if (!(a >= 0 && a <= 127))
                 {
                     break;            // Binary File
                 }
                 else if (objStream.Position == (objStream.Length))
                 {
                     bFlag = false;    // Text File
                 }
             }
             objStream.Dispose();

             return bFlag;                   
     }