How to split the string in Asp.net

In this article today I am going to explain How to split the string in Asp.net

Description:

In the previous article I have explained Display records in Gridview according to DropDownSelection in Asp.net and Select, Edit, update and Delete in Gridview with storeprocedure using Linq.

Splits a string into substrings that are based on the characters in an array. Like enter text with space, separated by ‘/’ or regular expressions etc.

Implementation:

Example 1

 In this example I am going to split the text entered with space.

HTML Markup:

<table>

        <tr><td>Enter Test</td><td></td><td>

            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></td></tr>

         <tr><td></td><td></td><td></td></tr>

        <tr><td></td><td></td><td>

            <asp:Button ID="Button1" runat="server" Text="Split Text"/></td></tr>

    </table>

Write the code on button click to split the entered text

C#:

  protected void Button1_Click(object sender, EventArgs e)

    {

        string input = TextBox1.Text.Trim();

        string[] StrSplit = input.Split(' ');

        foreach (var splitstr in StrSplit)

        {

            Response.Write(splitstr);

            Response.Write("<br>");

        }

    }

VB:

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

        Dim input As String = TextBox1.Text.Trim()

        Dim StrSplit As String() = input.Split(" ")

        For Each splitstr In StrSplit

            Response.Write(splitstr)

            Response.Write("<br>")

        Next

    End Sub

Result:

Example 2

Split the text after slash (/) e.g. split the date of birth

Add the namespace to code file

C#:

using System.Text.RegularExpressions;

VB:

Imports System.Text.RegularExpressions

Write the code on button click.

C#:

  protected void Button1_Click(object sender, EventArgs e)

    {

        string input = TextBox1.Text.Trim();

        String pattern = @"/";

        string[] StrSplit = Regex.Split(input, pattern);

        foreach (var splitstr in StrSplit)

        {

            Response.Write(splitstr);

            Response.Write("<br>");

        }

    }

VB:

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

        Dim input As String = TextBox1.Text.Trim()

        Dim pattern As [String] = "/"

        Dim StrSplit As String() = Regex.Split(input, pattern)

        For Each splitstr In StrSplit

            Response.Write(splitstr)

            Response.Write("<br>")

        Next

    End Sub

If you like split the text after hyphen (-) replace the slash (/) sign in pattern.

Result:

Example 3

Spit the entered text in single letters. E.g. if I enter the Dollar in textbox, It splits into single letter D o l l a r.

C#:

protected void Button1_Click(object sender, EventArgs e)

    {

        string input = TextBox1.Text.Trim();

        char[] character = input.ToCharArray();

        foreach (char c in character)

        {

            Response.Write(c);

            Response.Write("<br>");

        }

    }

VB:

   Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

        Dim input As String = TextBox1.Text.Trim()

        Dim character As Char() = input.ToCharArray()

        For Each c As Char In character

            Response.Write(c)

            Response.Write("<br>")

        Next

    End Sub

Result:

    In this article we have learn how to split the string in Asp.net (C#, VB). I hope you enjoyed this article.