C-Sharp Replace Example – Code Sample Syntax
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C-Sharp Replace Example – Code Sample Syntax
Abstract: – Illustrates using C-Sharp Replace Code Example.
*** 2. Replace Syntax ***
Purpose:
Returns a string with all occurrences of the old string in the string
replaced by the new string.
Syntax:
strField.Replace(strOldField, strNewField)
Parameters |
Description |
strField |
Required – string – that you use as the source
for having all occurrences of oldstring replaced with newstring
|
strOldField |
Required – string that you want to search
for so you can replace all occurrences of it.
|
strNewField |
Required – string that you want to replace
the oldstring with.
|
Result Data Type |
Description |
string |
Returns a string with all occurrences of the old string in the string
replaced by the new string.
|
Quick Example |
string strField = “This is my string”;
string strOldField = “my”;
string strNewField = “your”;
Console.WriteLine(strField.Replace(strOldField, strNewField)); Returns This is your string
|
*** 4. Replace – Full Example ***
Replace Example Output Screenshot
Step 1: Click C# to Cut-n-paste code into clsReplace.cs
using System;
public class clsReplace
{
public void Main()
{
//****************************************************************************************
// Purpose: Returns a string with all occurrences of the old string in the string
// replaced by the new string.
//
// Syntax: strField.Replace(strOldField, strNewField)
//
// Parameter1: strField - Required - string - that you use as the source
// for having all occurrences of oldstring replaced with newstring
//
// Parameter2: strOldField - Required - string that you want to search
// for so you can replace all occurrences of it.
//
// Parameter3: strNewField - Required - string that you want to replace
// the oldstring with.
//
// Result: string - Returns a string with all occurrences of the old string in the string
// replaced by the new string.
//
// Quick Example: string strField = "This is my string";
// string strOldField = "my";
// string strNewField = "your";
// Console.WriteLine(strField.Replace(strOldField, strNewField)); //Returns This is your string
//
//****************************************************************************************
//****************************************************************************************
// Example #1: Replace(string, oldstring, newstring)
// Returns a string with all occurrences of the old string in the string
// replaced by the new string.
//****************************************************************************************
Console.WriteLine("Example #1: Replace(strField, strOldField, strNewField)");
string strField = "This is my string";
string strOldField = "my";
string strNewField = "your";
Console.WriteLine(strField.Replace(strOldField, strNewField)); //Returns This is your string
//write blank line to make output easier to read
Console.WriteLine();
//Prevent console from closing before you press enter
Console.ReadLine();
}
} |
using System;
public class clsReplace
{
public void Main()
{
//****************************************************************************************
// Purpose: Returns a string with all occurrences of the old string in the string
// replaced by the new string.
//
// Syntax: strField.Replace(strOldField, strNewField)
//
// Parameter1: strField - Required - string - that you use as the source
// for having all occurrences of oldstring replaced with newstring
//
// Parameter2: strOldField - Required - string that you want to search
// for so you can replace all occurrences of it.
//
// Parameter3: strNewField - Required - string that you want to replace
// the oldstring with.
//
// Result: string - Returns a string with all occurrences of the old string in the string
// replaced by the new string.
//
// Quick Example: string strField = "This is my string";
// string strOldField = "my";
// string strNewField = "your";
// Console.WriteLine(strField.Replace(strOldField, strNewField)); //Returns This is your string
//
//****************************************************************************************
//****************************************************************************************
// Example #1: Replace(string, oldstring, newstring)
// Returns a string with all occurrences of the old string in the string
// replaced by the new string.
//****************************************************************************************
Console.WriteLine("Example #1: Replace(strField, strOldField, strNewField)");
string strField = "This is my string";
string strOldField = "my";
string strNewField = "your";
Console.WriteLine(strField.Replace(strOldField, strNewField)); //Returns This is your string
//write blank line to make output easier to read
Console.WriteLine();
//Prevent console from closing before you press enter
Console.ReadLine();
}
}
Step 2: Click 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)
{
clsReplace myReplace = new clsReplace();
myReplace.Main();
}
}
} |
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace CSharp_Syntax
{
class Program
{
static void Main(string[] args)
{
clsReplace myReplace = new clsReplace();
myReplace.Main();
}
}
}
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 Program.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 CSharp_Syntax.
- Add New folder named “StringManipulation”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: StringManipulation
- Add Class Named clsReplace to StringManipulation folder
- Right-click StringManipulation folder;
- add new item;
- Select class
- Class name could be clsReplace
- Click on C# in code in step 1 above to copy code into clsReplace.cs
- Click on C# in code in step 2 above to copy code into Program.cs
- Click green arrow or press F5 to run program
|