C# Mid Example Syntax | C-Sharp String Method | Source Code

C# Mid Example Syntax | C-Sharp String Method | Source Code

Purpose: – Illustrates the C# Syntax for Mid.

using System;
public class clsMid
{
 
    public void Main()
    {
 
 
 
        //****************************************************************************************
        // Example #1: Mid(string, startIndex[, length])
        // Returns the specified number of characters from the string starting
        // at the specified position. If the length is not specified, all of the 
        // characters to the end of the string are returned
        //****************************************************************************************
 
        Console.WriteLine("Example #1: Mid(strField, 2, 3)");
 
        string strField = "123456";
 
        Console.WriteLine(strField.Substring(1, 3)); //Returns 234
 
        //write blank line to make output easier to read
        Console.WriteLine();
 
 
 
        //Prevent console from closing before you press enter
        Console.ReadLine();
 
    }
 
 
}

Step 2: Click on C# to Cut-n-paste code into Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace CSharp_Syntax
{
    class Program
    {
        static void Main(string[] args)
        {
 
 
            clsMid myMid = new clsMid();
            myMid.Main();
 
        }
    }
}

Prerequistes:

1. Install C# (Express or Standard Edition)
2. Install SQL Server Express
3. Download Northwind and pubs Database
4. Attach Northwind Database to Databases in Sql Express
5. Attach pubs Database to Databases in Sql Express

Notes:

• Console Application is used to simplify things, but Windows Forms or Web Forms could also be used
• You can build a library of syntax examples by using same project over and over and just commenting out what you do not want to execute in Program.cs

Instructions:

1. Use C# 2010 Express or Standard Edition
2. Create new project;
   • Click File/New Project
   • Select Console Application Template
   • Select C# for Language
   • name of project could be CSharp_Syntax.
3. Add New folder named “StringManipulation”
   • Right-click project name in solution explorer;
   • add new folder;
   • name of folder could be: StringManipulation
4. Add Class Named clsMid to StringManipulation folder
   • Right-click StringManipulation folder;
   • add new item;
   • Select class
   • Class name could be clsMid
5. Click on C# in code in step 1 at top of page to copy code into clsMid.cs
6. Click on C# in step 2 at top of page to copy code into Program.cs
7. Click green arrow or press F5 to run program