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Lesson 22: The CheckBox and the Option Button

22.1 The CheckBox

In Excel VBA , the Checkbox is a very useful control . It allows the user to select one or more items by checking the checkbox or checkboxes concerned. For example, you may create a shopping cart where the user can click on checkboxes that correspond to the items they intend to buy, and the total payment can be computed at the same time. One of most important properties of the checkbox in Excel VBA 2010 is Value. If the checkbox is selected or checked, the value is true, whilst if it is not selected or unchecked, the Value is False.

The usage of checkbox is illustrated in Example 22.1

Example 22.1

In this example, the user can choose to display the sale volume of one type of fruits sold or total sale volume. The code is shown below:

Private Sub CommandButton1_Click() 
 If CheckBox1.Value = True And CheckBox2.Value = False Then 
  MsgBox "Quantity of apple sold is" & Cells (2, 2).Value 
 ElseIf CheckBox2.Value = True And CheckBox1.Value = False Then 
  MsgBox "Quantity of orange sold is " & Cells(2, 3).Value 
 MsgBox "Quantity of Fruits sold is" & Cells (2, 4).Value 
 End If 
 End Sub

The output Interface is shown in Figure 22.1

Figure 22.1

22.2 Option Button

The option button control also lets the user selects one of the choices. However, two or more option buttons must work together because as one of the option buttons is selected, the other option button will be deselected. In fact, only one option button can be selected at one time. When an option button is selected, its value is set to "True" and when it is deselected; its value is set to "False".

Example 22.2

This example demonstrates the usage of the option buttons. In this example, the Message box will display which option button selected by the user. The output interface is shown in Figure 22.2.

The code

Private Sub CommandButton1_Click() 
 If OptionButton1.Value = True Then 
  MsgBox "Option1 is selected" 
 ElseIf OptionButton2.Value = True Then 
  MsgBox "Option2 is selected" 
  MsgBox "Option3 is selected" 
 End If 
End Sub

The output

vba2010_figure 22.2
Figure 22.2

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