C-Sharp ConvertToString Example – Code Sample Syntax
C-Sharp ConvertToString Example – Code Sample Syntax
Purpose: – Illustrates using C-Sharp ConvertToString Code Example.
Purpose:
Converts boolean, date, and numeric data types into String data type
Syntax:
Convert.ToString(expression)
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:
- 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 clsConvertToString to TypeConversionFunctions folder
- Right-click TypeConversionFunctions folder;
- add new item;
- Select class
- Class name could be clsConvertToString
- Click on cs in code in step 1 above to copy code into clsConvertToString.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