Regex Split String but Keep Delimiter in C#, VB.NET

By: Suresh Dasari Feb 1, 2017

Introduction:

Here we will learn how to split string include delimiters in c#, vb.net with example or split string but keep delimiters in c#, vb.net with example or regex split string but keep delimiter at the end in c#, vb.net with example or split string into array of words but keep delimiters at the end of result in c#, vb.net with example. By using regular expression we can easily split the string and include delimiters in word based on our requirements.

Description:

In previous articles I explained split string example in c#, vb.net, use split function in jquery to split the string, jQuery get query string values with special characters, sql server check if string contains specific word / string, jQuery split string into array with comma delimiter example, sql server split function to split string with example and many articles related to in JSON, asp.net, mvc, c#, vb.net. Now I will explain how to split the string and keep the delimiters at the end in c#, vb.net with example.

By using regular expressions we can easily split and keep the delimiters at the end of string. Following is the sample code snippet to split the string with delimiters “?@!”.

C# Code

string text = "suresh?rohini@praveen!sateesh";

string[] split = Regex.Split(text, @"(?<=[?@!])");

VB.NET Code

Dim text As [String] = "suresh?rohini@praveen!sateesh"

Dim split As String() = Regex.Split(text, "(?<=[?@!])")

When we execute above statements we will get result like as shown below.

Regex Split String but Keep Delimiter in C#, VB.NET

If you want complete example to split string but to keep delimiter create new project and write the code like as shown below.

C# Code

using System;

using System.Text.RegularExpressions;

namespace SampleConsoleApp

{

class Program

{

static void Main(string[] args)

{

string text = "suresh?rohini@praveen!sateesh";

string[] strarr = Regex.Split(text, @"(?<=[?@!])");

foreach (var item in strarr)

Console.WriteLine(item);

Console.ReadLine();

}

VB.NET Code

Imports System.Text.RegularExpressions

Module Module1

Sub Main()

Dim text As String = "suresh?rohini@praveen!sateesh"

Dim strarr As String() = Regex.Split(text, "(?<=[?@!])")

For Each item In strarr

Console.WriteLine(item)

End Sub

End Module

If you observe above examples we are splitting string with special characters “?@!”.

Demo

Now run the application to see the result that will be like as shown below. Following is the result of splitting the string and including delimiter at the end of string.