C-Sharp ConvertToString Example – Code Sample Syntax

C-Sharp ConvertToString Example – Code Sample Syntax

Purpose: – Illustrates using .

Purpose:
Converts boolean, date, and numeric data types into String data type

Syntax:
Convert.ToString(expression)

Parameters Description
expression boolean, date, and numeric data types

Result Data Type Description
String 1. If boolean, returns string “True” or “False”
2. If date, returns A string containing a date value (date and time) in the short date
format of your system
3. If number, returns a string representing the number

Quick Example
Convert.ToString(5.5) // Returns 5.5

Step 1: Click cs to Cut-n-paste code into clsConvertToString.cs

using System;
 
public class clsConvertToString
{
 
    public void Main()
    {
 
 
        //*****************************************************************************************
        // Purpose: Converts boolean, date, and numeric data types into String data type
        // 
        // Syntax: 	Convert.ToString(expression)
        //  
        // Parameter1: expression - boolean, date, and numeric data types
        //
        // Result: String - 1. If boolean, returns string "True" or "False" 
        // 2. If date, returns A string containing a date value (date and time) in the short date 
        // format of your system
        // 3. If number, returns a string representing the number
        //
        // Quick Example: Convert.ToString(5.5) // Returns 5.5
        //
        //****************************************************************************************
        // This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	Convert.ToString(expression) - boolean");
        bool myBool = true;
        string String1 = Convert.ToString(myBool);
 
        Console.WriteLine(String1); // Returns "True"
 
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #2: 	Convert.ToString(expression) - date");
        DateTime myDate = Convert.ToDateTime("10/21/2011");
        string String2 = Convert.ToString(myDate);
 
        Console.WriteLine(String2); // Returns 10/21/2011
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #3: 	Convert.ToString(5.5) - number");
 
        string String3 = Convert.ToString(5.5);
 
        Console.WriteLine(Convert.ToString(String3)); // Returns 5.5
 
        //Prevent console from closing before you press enter
        Console.ReadLine();
 
    }
 
}

Step 2: Click cs to Cut-n-paste code into Module1.cs

Module Module1
 
    Sub Main()
 
 
        Dim myclsConvertToString As New clsConvertToString
        myclsConvertToString.Main()
 
 
 
    End Sub
 
End Module

Prerequistes:

  1. Install C-Sharp (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 Module1.cs

Instructions:
C-Sharp Syntax Functions ConversionFunctions ConvertToString

  1. Use C-Sharp 2010 Express or Standard Edition
  2. Create new project;
    • Click File/New Project
    • Select Console Application Template
    • Select C-Sharp for Language
    • name of project could be C-Sharp_Syntax.
  3. Add New folder named “Functions”
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder could be: Functions
  4. Add New subfolder named “ConversionFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: ConversionFunctions
  5. Add New subfolder named “TypeConversionFunctions”
    • Right-click ConversionFunctions folder in solution explorer;
    • add new folder;
    • name of folder could be: TypeConversionFunctions
  6. Add Class Named clsConvertToString to TypeConversionFunctions folder
    • Right-click TypeConversionFunctions folder;
    • add new item;
    • Select class
    • Class name could be clsConvertToString
  7. Click on cs in code in step 1 above to copy code into clsConvertToString.cs
  8. Click on cs in code in step 2 above to copy code into Module1.cs
  9. Click green arrow or press F5 to run program