{"id":4182,"date":"2014-01-07T11:54:30","date_gmt":"2014-01-07T03:54:30","guid":{"rendered":"http:\/\/www.vbtutor.net\/?page_id=4182"},"modified":"2018-06-23T11:43:39","modified_gmt":"2018-06-23T03:43:39","slug":"working-with-controls","status":"publish","type":"page","link":"https:\/\/www.vbtutor.net\/index.php\/working-with-controls\/","title":{"rendered":"Visual Basic 2013 Lesson 5: Working with Controls"},"content":{"rendered":"

[Lesson 4] <\/a><< [Contents] <\/a>>> [Lesson 6]<\/a><\/h4>\n

In the previous lesson, you\u00a0have learned how to write simple Visual Basic 2013 code. In this lesson, you\u00a0will learn how to work with some common controls and write codes for them. Some of the common controls are the label, text box, button, list box and the combo box. However, in this lesson, you will\u00a0only deal with the text box and the label, you\u00a0shall learn how to work other\u00a0controls in later lessons.<\/p>\n

5.1 The TextBox<\/h3>\n

The textbox is the standard control for receiving input from the user. It can also be used to display the output. It can only handle string (text) and numeric data but not images or pictures. By the way, a string in a text box can be converted to a numeric data by using the function Val(text)<\/strong>. The following example illustrates a simple program that processes the input from the user.<\/p>\n

Example 5.1<\/h4>\n

In this program, you add two text boxes and a button on the form. The two text boxes are used to accept inputs from the user. Besides, a button is also programmed to calculate the sum of the two numbers using the plus operator. The value enters into a text box is stored using the syntax Textbox1.Text, where Text is one of the properties of the textbox.<\/p>\n