why Http Handler are used - Introduction to handler

 Http handlers are used for

Binary files

Dynamic image views

Performance-critical web pages

XML files

Minimal web pages

and these are fast and it only gives minimum response. example when you write  

Response.ContentType = "text/plain";

         //MediaTypeNames.Text.Plain

in aspx page it will give lot of information.

and when you write this in handler it will give only specific information that you want.

Also no return type of processrequest funtion in http handler

you can create other return type function in handler and also create model in handler.

Computer vs television - difference between computer and television

 Computer is having data and english hindi lanuguage all time. and text is very small

but in television we have visual things , and text is very large if it had

How to split the comma separated string to list of array in C#

string tags = "9,3,12,43,2"

 tags.Split(',').Select(int.Parse).ToList();

How to convert bytes to string and string to bytes in c#

 

        string author = "Mahesh Chand";

        // Convert a C# string to a byte array

        byte[] bytes = Encoding.ASCII.GetBytes(author);

        foreach (byte b in bytes)

        {

            Response.Write(b );

            Response.Write(Environment.NewLine);                       

        }

bytes to string

string myString = Encoding.ASCII.GetString(bytes);

Response.Write(str);

How to convert bytes to base64string in c#

using fileupload control

 Convert.ToBase64String(fileUpload1.FileBytes);

using memory stream

 Stream fs = fileUpload1.PostedFile.InputStream;

        BinaryReader br = new BinaryReader(fs);

        

        Byte[] bytes = br.ReadBytes((int)fs.Length);

 Convert.ToBase64String(bytes );

base64 string meaning

the upper- and lower-case Roman alphabet characters (A–Z, a–z), the numerals (0–9), and the "+" and "/" symbols, with the "=" symbol as a special suffix code