Count words in a sentence

Sandhiya Priya
Oct 31
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Article

Step 1: Design Page – CountWords.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CountWords.aspx.cs" Inherits="CountWords" %>

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Count Words in a Sentence - Real Time Example</title>
    <style>
        body {
            font-family: Arial;
            background-color: #f0f2f5;
            margin: 50px;
        }
        .container {
            width: 480px;
            margin: auto;
            background: white;
            border-radius: 8px;
            box-shadow: 0px 0px 10px #ccc;
            padding: 25px;
        }
        h2 {
            color: #1A2A80;
            text-align: center;
        }
        .form-control {
            width: 100%;
            padding: 8px;
            margin-top: 10px;
        }
        .btn {
            background-color: #7A85C1;
            color: white;
            border: none;
            padding: 10px;
            margin-top: 10px;
            border-radius: 5px;
            cursor: pointer;
            width: 100%;
        }
        .result {
            margin-top: 20px;
            font-weight: bold;
            color: #333;
            text-align: center;
            white-space: pre-line;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
        <div class="container">
            <h2>Count Words in a Sentence</h2>

            <asp:Label ID="lblInput" runat="server" Text="Enter a Sentence:"></asp:Label><br />
            <asp:TextBox ID="txtSentence" runat="server" CssClass="form-control" placeholder="Example: Welcome to ASP.NET WebForms"></asp:TextBox><br />

            <asp:Button ID="btnCount" runat="server" Text="Count Words" CssClass="btn" OnClick="btnCount_Click" /><br />

            <asp:Label ID="lblResult" runat="server" CssClass="result"></asp:Label>
        </div>
    </form>
</body>
</html>

Step 2: Backend Logic – CountWords.aspx.cs

using System;

public partial class CountWords : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }

    protected void btnCount_Click(object sender, EventArgs e)
    {
        string sentence = txtSentence.Text.Trim();

        if (string.IsNullOrEmpty(sentence))
        {
            lblResult.Text = "Please enter a sentence.";
            lblResult.ForeColor = System.Drawing.Color.Red;
            return;
        }

        // Split words by spaces, removing empty entries
        string[] words = sentence.Split(new char[] { ' ', '\t', '\n' }, StringSplitOptions.RemoveEmptyEntries);
        int wordCount = words.Length;

        lblResult.Text = $"Total Words: {wordCount}";
        lblResult.ForeColor = System.Drawing.Color.Green;
    }
}

Real-Time Example Flow

Open CountWords.aspx in your browser.
Enter:
Welcome to ASP.NET WebForms
Click “Count Words”.
Output:
```
Total Words: 4
```

Explanation

Step	Description
1	Get the sentence from the TextBox.
2	Use Split() to divide by space, tab, or newline.
3	Use StringSplitOptions.RemoveEmptyEntries to ignore multiple spaces.
4	Count and display the number of words.

Example Input / Output Table

Input	Output
Welcome to ASP.NET WebForms	4
I love coding in C#	5
Learn ASP.NET easily	3
Hello	1
This is a real time example	6