C-Sharp ConvertToBoolean Example – Code Sample Syntax
C-Sharp ConvertToBoolean Example – Code Sample Syntax
Purpose: – Illustrates using C-Sharp ConvertToBoolean Code Example.
Purpose:
Converts char, string, or numeric expression to boolean data type
Syntax:
Convert.ToBoolean(expression)
Convert.ToBoolean(expression)
Parameters | Description | expression | char, string, or numberic expression |
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Result Data Type | Description | Boolean | is false if input converts to 0; otherwise, it is true |
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Quick Example | Convert.ToBoolean(“True”) // Returns True |
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Step 1: Click cs to Cut-n-paste code into clsConvertToBoolean.cs
using System; public class clsConvertToBoolean { public void Main() { //**************************************************************************************** // Purpose: Converts char, string, or numeric expression to boolean data type // // Syntax: Convert.ToBoolean(expression) // // Parameter1: expression - char, string, or numberic expression // // Result: Boolean - is false if input converts to 0; otherwise, it is true // // Quick Example: Convert.ToBoolean("True") // Returns True // //**************************************************************************************** // This example is from http://idealprogrammer.com Console.WriteLine("Example #1: Convert.ToBoolean(string)"); Console.WriteLine(Convert.ToBoolean("True")); // Returns True //write blank line to make output easier to read Console.WriteLine(); Console.WriteLine("Example #2: Convert.ToBoolean(numeric expression)"); Console.WriteLine(Convert.ToBoolean(1)); // Returns True //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 myclsConvertToBoolean As New clsConvertToBoolean myclsConvertToBoolean.Main() End Sub End Module |
Prerequistes:
- Install C-Sharp (Express or Standard Edition)
- Install SQL Server Express
- Download Northwind and pubs Database
- Attach Northwind Database to Databases in Sql Express
- 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:
- Use C-Sharp 2010 Express or Standard Edition
- Create new project;
- Click File/New Project
- Select Console Application Template
- Select C-Sharp for Language
- name of project could be C-Sharp_Syntax.
- Add New folder named “Functions”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: Functions
- Add New subfolder named “ConversionFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: ConversionFunctions
- Add New subfolder named “TypeConversionFunctions”
- Right-click ConversionFunctions folder in solution explorer;
- add new folder;
- name of folder could be: TypeConversionFunctions
- Add Class Named clsConvertToBoolean to TypeConversionFunctions folder
- Right-click TypeConversionFunctions folder;
- add new item;
- Select class
- Class name could be clsConvertToBoolean
- Click on cs in code in step 1 above to copy code into clsConvertToBoolean.cs
- Click on cs in code in step 2 above to copy code into Module1.cs
- Click green arrow or press F5 to run program