Chapter 8, Problem 3PP

Program Plan Intro

Sentence Capitalizer

Program plan:

Design the form:

• Place two label box controls on the form, and change its name and properties.
• Place one text box control on the form, and change its name and properties to get the string from user.
• Place one command button control on the form, and change its name and properties to display the first character of each sentence is capitalized in label box.

In code window, write the code:

Program.cs:

• Include the required libraries.
• Define the namespace “SentenceCap”.
  • Define a class “Program”.
    • Define a constructor for the class.
    • Define required functions to run “Form1”.

Form1.cs:

• Include the required libraries.
• Define namespace “SentenceCap”.
  • Define a class “Form1”.
  • In btnCase() method,
    • Call sentenceCase() method to capitalize the first character in each sentence and display it into label box.
  • In sentenceCase() method,
    • Declare the required variables.
    • Check whether “i” is equal to “0”. If yes, call ToUpper() method to convert the first character of each sentence.
    • Otherwise, check the “i” is greater than “2” and checks there are punctuations and whitespace in sentence. If yes, call ToUpper() method to convert the first character of each sentence.
    • Otherwise, simply store the character.
    • Return the capitalized first character in each sentence.
  • Close the application.

Form Design:

View the Form Design in IDE.

Set the Form Control properties in Properties window as follows:

Object	Property	Setting
Form1	Text	Program8_3
label1	Text	Enter a string:
textBox1	Text	(Empty)
lblResult	Text	(Empty)
btnCase	Text	Use sentence case

• Add two label box controls to the form from Toolbox.
• Add one text box control to the form from Toolbox.
• Add one command button control to the form from Toolbox.