Dialogue form controls are connected when using in project the rxDialogControls  component from the FastReport component palette. To perform this, it is ehough to put a component on any form in your project or add "frxDCtrl" into the "uses" list. This results in connecting the following controls:

Element	Name	Description
	TfrxLabelControl	This control is used for displaying explicative inscription on the dialogue form.
	TfrxEditControl	This control is used for entering a text line with the help of the keyboard.
	TfrxMemoControl	This control is used for entering several text lines with the help of the keyboard.
	TfrxButtonControl	The control represents a button.
	TfrxCheckBoxControl	The control represents a flag, which can perform two statuses: enabled and disabled. Near the flag, the explicative inscription is displayed.
	TfrxRadioButtonControl	The control represents a switch key counterpart with radio button. This is the reason why it cannot be used alone.
	TfrxListBoxControl	The control represents the list of lines with a possibility to select one of them.
	TfrxComboBoxControl	The control represents the drop-out list of lines with a possibility to select one of them.
	TfrxDateEditControl	The control represents a field with a dropout calendar for date entering.
	TfrxGroupBoxControl	The control represents a bar with explicative inscription which is used for uniting several controls.
	TfrxPanelControl	The control represents a bar, which is designed for uniting several controls.
	TfrxBitBtnControl	The control represents a button with picture.
	TfrxSpeedButtonControl	The control represents a button with picture.
	TfrxMaskEditControl	The control represents a text box for entering information set in a template.
	TfrxCheckListBoxControl	The control represents a list of lines with flags.
	TfrxBevelControl	The control is used for the dialogue form design.
	TfrxImageControl	The control represents a picture in "BMP," "ICO," "WMF," or "EMF" format.

As you can see, all elements are similar to those used in Delphi. In the FastReport component help, you can obtain the help about realized properties, events and methods of each element.