Structure

This article describes the inner structure and organization of the elements which build the RadCalculatorDropDown control.

RadCalculatorDropDown consists of two parts - editable part which is the actual editor and a popup hosting the calculator.

Figure 1: RadCalculatorDropDown`s Element Hierarchy

Figure 2: RadCalculatorDropDown Structure

Editable Area

The editable area consists of three elements:

• Editable Area: Contains the editor repsponsible for handling user input.

  • RadCalculatorMemoryElement: This element gets visible when the memory functions of the calculator are used.

  • RadCalculatorEditorContentElement: This is the editable area of the control.

  • RadCalculatorArrowButtonElement: This the arrow button which opens the popup of the control.

Drop-down Part

The popup part consists of six elements:

• Drop-Down: Handles the arithmetic operations.

  • RadCalculatorMemoryButtonElement: This is the type of the buttons for memory operations

  • RadCalculatorOperationButtonElement: This type is used by the buttons resposinble for different calculation operations (subscription, addition, etc).

  • RadCalculatorEqualsButtonElement: This class is used by the equals button.

  • RadCalculatorCommandButtonElement: This class is used by the command buttons (CE, C).

  • RadCalculatorDeleteButtonElement: This type is used by the delete button.

  • RadCalculatorDigitButtonElement: This type is used by the digit buttons.

See Also

• Design Time
• Getting Started