DBFile
Description
The component is used to save the file to the database and retrieve it from the database.
Class: TdbFileToDatabase
Properties
Property |
Type |
Description |
dbCopyTo |
String |
Allows you to specify where you want the file to be copied automatically. More info. |
dbFileName |
String |
If the Type = LinkFile property, then the property returns the full path of the file location, if the CopyTo property is also defined, then the property returns the file path relative to the database file location (only for SQLite). If Type = StoreFile, then the property returns the location of the file when it is saved to the database. |
dbFileIsChanged |
Boolean |
If the property returns True, then the file in the component has been changed. |
dbInitialDir |
String |
Allows you to set the default path for the open and save file dialog. |
Alignment |
TAlignment |
Sets the text alignment. Available values: taCenter, taRightJustify, taLeftJustify |
AutoSelect |
Boolean |
Determines whether all the text in the edit control is automatically selected when the control gets focus. |
BorderStyle |
TBorderStyle |
Determines whether the edit control has a single line border around the client area. Available values: bsSingle, bsNone |
CanFocus |
Boolean |
It checks if the component can get input focus, which is usually necessary before using the SetFocus method. If a component has Visible = False or Enabled = False property, or if the component is located on a parent component with those properties, using the SetFocus method will cause an error. example: if Form1.DBFile1.CanFocus then Form1.DBFile1.SetFocus; |
CharCase |
TEditCharCase |
Determines the case of the text within the edit control. Available values: ecNormal, ecUpperCase, ecLowerCase |
TColor |
Specifies the background color of the control. More info. |
|
TCursor |
Specifies the image used to represent the mouse pointer when it passes into the region covered by the control. More info. |
|
dbTable |
String |
Determines which database table a component belongs to. |
dbField |
String |
Determines which field of the database table this component belongs to. |
Enabled |
Boolean |
Controls whether the component responds to mouse, keyboard, and timer events. |
Focused |
Boolean |
Determines whether the control has input focus. |
TFont |
Allows you to set font name, size, color and style. More info. |
|
GetTextLen |
Integer |
Returns the length of the component's text. |
Hint |
String |
Hint contains the text string that appears when the user moves the mouse over the component., see also ShowHint |
LeftButton |
TEditButton |
To access the left button properties (Enabled, Hint, Visible). |
MaxLength |
Integer |
Specifies the maximum number of characters the user can enter into the edit component. |
Name |
String |
The name of the component. |
PopupMenu |
TPopupMenu |
Provides access to the component's popup menu from the right button. |
ReadOnly |
Boolean |
Determines whether the user can change the text of the edit component. |
RightButton |
TEditButton |
To access the properties of the right button (Enabled, Hint, Visible). |
ShowHint |
Boolean |
Specifies whether to show the Help Hint when the mouse pointer moves over the component, see also Hint |
TabOrder |
Integer |
Indicates the position of the component in its parent's tab order. TabOrder is the order in which child components are visited when the user presses the Tab key. |
TabStop |
Boolean |
Determines whether the user can tab to a control. Use the TabStop to allow or disallow access to the control using the Tab key. |
Tag |
Integer |
Allows you to assign a number to a component for your own needs. |
TagString |
String |
Allows you to assign a string to a component for your own needs. |
Text |
String |
Contains a text string associated with the component. |
Visible |
Boolean |
Specifies whether the component appears onscreen. |
Left |
Integer |
Specifies the horizontal coordinate of the left edge of a component relative to its parent. |
Top |
Integer |
Specifies the vertical coordinate of the upper-left of a component relative to its parent. |
Width |
Integer |
Specifies the horizontal size of the component in pixels. |
Height |
Integer |
Specifies the vertical size of the component in pixels. |
Methods
Method |
Description |
procedure Clear |
Deletes all text from the edit component. |
procedure ClearEx |
Clears the data and text content of the component. |
procedure CopyToClipboard |
Copies the selected text in the edit component to the Clipboard. |
procedure CutToClipboard |
Copies the selected text to the Clipboard and then deletes the selection. |
procedure PasteFromClipboard |
Pastes the contents of the Clipboard into edit component, replacing the current selection. |
procedure SelectAll |
Selects all text in the edit component. |
procedure SetFocus |
Gives the input focus to the component. |
Events
Event |
Description |
OnChange |
Occurs when you change the text in a component. |
OnClick |
Occurs when the user clicks the component. |
OnDoubleClick |
Occurs when the user double-clicks the left mouse button when the mouse pointer is over the component. |
OnEnter |
Occurs when a component receives the input focus. |
OnExit |
Occurs when the input focus shifts away from one component to another. |
OnKeyDown |
Occurs when a user presses any key while the form has focus. |
OnKeyPress |
Occurs when a key is pressed. Note that this procedure handles printable characters only. |
OnKeyUp |
Occurs when the user releases a key that was pressed. |
OnLeftButtonClick |
Occurs when the left button is pressed. |
OnMouseDown |
Occurs when the user presses a mouse button with the mouse pointer over a component. |
OnMouseEnter |
Occurs when the user moves the mouse into a component. |
OnMouseLeave |
Occurs when the user moves the mouse outside of a component. |
OnMouseMove |
Occurs when the user moves the mouse pointer while the mouse pointer is over a component. |
OnMouseUp |
Occurs when the user releases a mouse button that was pressed with the mouse pointer over a component. |
OnRightButtonClick |
Occurs when the right button is pressed. |
Occurs when user tries to drag and drop a file from explorer to a form. More info. |