DecimalEdit

Inheritance Hierarchy

          IComponent

          IControl

          ICustomEdit

          IEditBox

          IEditBoxEx

          ISpinEdit

          IDecimalEdit

          DecimalEdit

Description

The DecimalEdit component is a single-line editor of real numbers.

Working with the Component

The DecimalEdit component is an analog of the FloatEdit component and is used to edit real numbers. Unlike FloatEdit, DecimalEdit allows to edit numbers with high precision of up to 18 digits after the separator. Precision is set in the Precision property. The step, by which the value is changed on pressing the UP or DOWN keys or buttons in the SPINUP/SPINDOWN component, is set in the StepSize property.

Example

Properties of the DecimalEdit Component

  Property name Brief description
Align The Align  property determines component alignment within its parent component.
AllowDrag The AllowDrag  property determines whether an object can be dragged from the component.
AllowDrop The AllowDrop  property determines whether the component can accept the dragged object.
AllowEmpty The AllowEmpty property determines whether the empty value can be in the component.
Anchors The Anchors  property returns settings that determine the percentage of the size change for the current component when the parent component is resized.
AutoSelect The AutoSelect property determines whether the entire component text is selected when the component gets focus.
BorderStyle The BorderStyle property determines component's border style.
Brush The Brush  property specifies the brush used to fill the component area.
CanUndo The CanUndo  property returns  True if it is possible to undo text changes in the component.
CharacterCasing The CharacterCasing property determines case of entered component characters.
ClientHeight The ClientHeight  property determines the height of the client component area.
ClientWidth The ClientWidth  property determines the width of the client component area.
Color The Color  property determines the background color of the component.
ComponentCount The ComponentCount  property returns the number of child components.
Components The Components  property returns a child component.
CorrectOnExit The CorrectOnExit property determines whether value is automatically corrected when the component loses focus.
Cursor The Cursor  property determines how the cursor looks like when you hover over a component during form execution.
Data The Data  property is used to store any custom data.
EditorReadOnly The EditorReadOnly property determines whether component's text can be edited manually.
Enabled The Enabled  property determines whether a component is available for a user.
Focused The Focused  property returns  True if the component gets focus.
Font The Font  property determines the set of characteristics, describing the font, used to display text.
Height The Height  property determines the component height.
HelpContext The HelpContext  property determines the unique index for a section of a context help for this component.
HideSelection The HideSelection property determines whether the component's selected text remains selected on passing the focus to the other component.
Hint The Hint  property determines the hint text for the component.
Left The Left  property determines the coordinate of the left border of the component.
MaxLength The MaxLength  property determines the maximum length of the entered text.
MaxValue The MaxValue property determines the maximum value of the number that can be set in the component.
MinValue The MinValue property determines the minimum value of the number that can be set in the component.
Modified The Modified  property returns  True if component's text is changed.
Name The Name  property determines the component name.
Parent The Parent  property determines the parent component.
ParentColor The ParentColor  property determines whether a component inherits the color of the parent component.
ParentFont The ParentFont  property determines whether a component should use the font of the parent component.
ParentShowHint The ParentShowHint property determines whether a tooltip is displayed.
PasswordChar The PasswordChar property determines the character that substitutes actual characters entered by the user.
PopupMenu The PopupMenu  property determines the context menu to be displayed on right-click.
Precision The Precision property determines the number of digits displayed after the point.
ReadOnly The ReadOnly property determines whether the user can change component's text.
Scrolls The Scrolls  property returns parameters of component's scrollbars.
SelLength The SelLength  property determines the number of characters selected in the component text.
SelStart The SelStart  property determines the position of the cursor from where the selection of the component's text starts.
SelText The SelText  property determines text, selected in the component.
ShowHint The ShowHint  property enables and disables showing a hint for the component.
StepSize The StepSize property determines a value, for which the value entered in the edit field, is changed, if the SpinUp and SpinDown keys are used to change the value.
TabOrder The TabOrder  property determines the component position in the tab order.
TabStop The TabStop  property determines whether the focus is set to a component when the TAB key is pressed.
Tag The Tag  property is not used by the compiler. A user can change the value of the  Tag  property and use it as he wishes.
Text The Text  property determines the row identifying a component for a user.
ThousandSeparator The ThousandSeparator property determines whether value is displayed in the component using the separator of digit groups.
Top The Top  property determines the coordinate of the top border of the component.
TrailingZeros The TrailingZeros property determines whether the zeros are displayed after the decimal point if Precision is greater than 0.
Valid The Valid property returns correctness of the real number that was input in the edit field.
Value The Value property determines the current value, entered into the edit field.
Visible The Visible  property determines the visibility of the component during execution.
Width The Width  property determines the component width.

Methods of the DecimalEdit Component

  Method name Brief description
BringToFront The BringToFront method brings a component to front.
Clear The Clear method deletes the entire text contained in the component.
ClearSelection The ClearSelection method deletes the entire text that is selected in the component.
ClearUndo The ClearUndo method is used to fix changes of the Text.
ClientToScreen The ClientToScreen method converts the coordinates of a point specified relative to the component coordinate system to screen coordinates.
CopyToClipboard The CopyToClipboard method copies selected data into the clipboard.
CutToClipboard The CutToClipboard method cuts selected data into the clipboard.
DoDragDrop The DoDragDrop method starts dragging operation.
GetImage The GetImage method returns the image of the component with all the child components.
PasteFromClipboard The PasteFormClipboard method pastes the data from the clipboard.
ScreenToClient The ScreenToClient method converts screen coordinates of a point to coordinates specified relative to the component coordinate system.
SelectAll The SelectAll method selects component's text.
SendToBack The SendToBack method sends a component to back.
SetFocus The SetFocus method sets focus to this component.
Undo The Undo method cancels the last change of the component's text.

Events of the DecimalEdit Component

  Event name Brief description
OnBeginDrag The OnBeginDrag event occurs for a component, when a user starts to drag an object from the component.
OnChange The OnChange event occurs after changes of the Text  property.
OnClick The OnClick event occurs if the user clicks a component area using the main mouse button.
OnDblClick The OnDblClick event occurs if the user double-clicks a component area using the mouse button.
OnDragDrop The OnDragDrop event occurs for a component if a user drops a dragged object over it.
OnDragEnter The OnDragEnter event occurs when a dragged object crosses the borders of this component.
OnDragLeave The OnDragLeave event occurs when a dragged object leaves the borders of this component.
OnDragOver The OnDragOver event occurs for this component when a user drags a dragged object over it.
OnEnter The OnEnter event occurs when a component receives focus.
OnExit The OnExit event occurs when a component loses focus.
OnHScroll The OnHScroll  event occurs on changing position of horizontal scrollbar slider.
OnKeyDown The OnKeyDown event occurs if a component is focused and a keyboard key is pressed.
OnKeyPress The OnKeyPress event occurs if a component is focused when a user presses a character key.
OnKeyPreview The OnKeyPreview event occurs prior to each event requiring clicking.
OnKeyUp The OnKeyUp event occurs if a component is focused and a user releases any button previously pressed.
OnMouseDown The OnMouseDown event occurs if the cursor is in component's area and a mouse button is pressed.
OnMouseEnter The OnMouseEnter occurs when the mouse cursor enters the component's area.
OnMouseHover The OnMouseHover event occurs when the mouse cursor lingers in component area.
OnMouseLeave The OnMouseLeave event occurs when the mouse cursor leaves the component area.
OnMouseMove The OnMouseMove event occurs when the mouse cursor is moved over the component.
OnMouseUp The OnMouseUp event occurs if user releases mouse button when the cursor is in the component area.
OnMouseWheel The OnMouseWheel event occurs if a component is focused when a user rotates mouse wheel.
OnSpinDown The OnSpinDown event occurs on pressing the SpinDown button in the edit box.
OnSpinUp The OnSpinUp event occurs on pressing the SpinUp button in the edit box.
OnValueChange The OnValueChange event occurs when the value is changed in the edit field.
OnVScroll The OnVScroll  event occurs on changing position of vertical scrollbar slider.

See also:

Additional Components