An array for accessing every button in a group. Not available at design time.
Control.Buttons(nIndex).Property = Value -Or- Control.Buttons(nIndex).Method |
Return Value
- nIndex
- An integer between 1 and the number of buttons specified in the ButtonCount property for Control.
- Property
- A property of a CommandButton or OptionButton.
- Value
- The value of Property.
- Method
- A method of a CommandButton or OptionButton.
Remarks
Applies To: CommandGroup Control | OptionGroup Control
You can use the Buttons property to set properties and call methods for all the buttons in the group. The Buttons property is an array that is created when the button group is created.
Example
The following example creates an OptionGroup control and places the control on a form. The OptionGroup control has three buttons; depending on the option button you click, a circle, ellipse, or square appears. The ButtonCount property specifies the number of buttons in the OptionGroup. The Buttons and Caption properties specify the text displayed next to each option button.
The Shape control is used to create the circle, ellipse, and square. The OptionGroup control's Click event uses a DO CASE ... ENDCASE structure and the Value property to display the appropriate shape when you click an option button.
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frmMyForm = CREATEOBJECT('Form') && Create a Form frmMyForm.Closable = .F. && Disable the Control menu box frmMyForm.AddObject('cmdCommand1','cmdMyCmndBtn') && Add Command button frmMyForm.AddObject('opgOptionGroup1','opgMyOptGrp') && Add Option Group frmMyForm.AddObject('shpCircle1','shpMyCircle') && Add Circle Shape frmMyForm.AddObject('shpEllipse1','shpMyEllipse') && Add Ellipse Shape frmMyForm.AddObject('shpSquare','shpMySquare') && Add Box Shape frmMyForm.cmdCommand1.Visible =.T. && "Quit" Command button visible frmMyForm.opgOptionGroup1.Buttons(1).Caption = "\<Circle" frmMyForm.opgOptionGroup1.Buttons(2).Caption = "\<Ellipse" frmMyForm.opgOptionGroup1.Buttons(3).Caption = "\<Square" frmMyForm.opgOptionGroup1.SetAll("Width", 100) && Set Option group width frmMyForm.opgOptionGroup1.Visible = .T. && Option Group visible frmMyForm.opgOptionGroup1.Click && Show the circle frmMyForm.SHOW && Display the form READ EVENTS && Start event processing DEFINE CLASS opgMyOptGrp AS OptionGroup && Create an Option Group ButtonCount = 3 && Three Option buttons Top = 10 Left = 10 Height = 75 Width = 100 PROCEDURE Click ThisForm.shpCircle1.Visible = .F. && Hide the circle ThisForm.shpEllipse1.Visible = .F. && Hide the ellipse ThisForm.shpSquare.Visible = .F. && Hide the square DO CASE CASE ThisForm.opgOptionGroup1.Value = 1 ThisForm.shpCircle1.Visible = .T. && Show the circle CASE ThisForm.opgOptionGroup1.Value = 2 ThisForm.shpEllipse1.Visible = .T. && Show the ellipse CASE ThisForm.opgOptionGroup1.Value = 3 ThisForm.shpSquare.Visible = .T. && Show the square ENDCASE ENDDEFINE DEFINE CLASS cmdMyCmndBtn AS CommandButton && Create Command button Caption = '\<Quit' && Caption on the Command button Cancel = .T. && Default Cancel Command button (Esc) Left = 125 && Command button column Top = 210 && Command button row Height = 25 && Command button height PROCEDURE Click CLEAR EVENTS && Stop event processing, close Form ENDDEFINE DEFINE CLASS shpMyCircle AS SHAPE && Create a circle Top = 10 Left = 200 Width = 100 Height = 100 Curvature = 99 BackColor = RGB(255,0,0) && Red ENDDEFINE DEFINE CLASS shpMyEllipse AS SHAPE && Create an ellipse Top = 35 Left = 200 Width = 100 Height = 50 Curvature = 99 BackColor = RGB(0,128,0) && Green ENDDEFINE DEFINE CLASS shpMySquare AS SHAPE && Create a square Top = 10 Left = 200 Width = 100 Height = 100 Curvature = 0 BackColor = RGB(0,0,255) && Blue ENDDEFINE |