C# InStr Example Syntax| InStr | Source Code

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C# InStr Example Syntax| C-Sharp InStr | Source Code

Purpose: – Illustrates the C# Syntax for InStr.

 C# | 
 copy code |
?
 
using System;
public class clsInStr
{
 
    public void Main()
    {
 
 
 
        //****************************************************************************************
        // Example #1: InStr(startIndex, string1, string2)
        // Returns an integer that represents the position of the first occurrence of 
        // the second string in the first string. The search starts at the specified
        // position in the string.  If the string is not found, the result is 0
        //****************************************************************************************
 
        Console.WriteLine(" InStr(startIndex, string1, string2)");
 
        string strField1 = " This ";
        string strField2 = "is";
 
        Console.WriteLine(strField1.IndexOf(strField2, 0) + 1); //Returns 4 - spaces are counted
 
        //write blank line to make output easier to read
        Console.WriteLine();
 
 
 
        //Prevent console from closing before you press enter
        Console.ReadLine();
 
    }
 
 
}

 C# | 
 copy code |
?
 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace CSharp_Syntax
{
    class Program
    {
        static void Main(string[] args)
        {
 
 
            clsInStr myInStr = new clsInStr();
            myInStr.Main();
 
        }
    }
}
 
 
 

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 clsInStr to StringManipulation folder
   • Right-click StringManipulation folder;
   • add new item;
   • Select class
   • Class name could be clsInStr
5. Click on C# in code in step 1 at top of page to copy code into clsInStr.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

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