TGridColumn

type TGridColumn = class(TCollectionItem)

protected

  function GetDisplayName; override;

  function GetDefaultAlignment; virtual;

Gets the default value for the Alignment property.

  function GetDefaultColor; virtual;

Gets the default value for the Color property.

  function GetDefaultLayout; virtual;

Default layout used for text in the grid column.

  function GetDefaultMaxSize; virtual;

Gets the default value for the MaxSize property.

  function GetDefaultMinSize; virtual;

Gets the default value for the MinSize property.

  function GetDefaultReadOnly; virtual;

Gets the default value for the ReadOnly property.

  function GetDefaultSizePriority;

Gets the default value for the SizePriority property.

  function GetDefaultVisible; virtual;

Gets the default value for the Visible property.

  function GetDefaultValueChecked; virtual;

Gets the default value for a checked cell in the grid column.

  function GetDefaultValueUnchecked; virtual;

Gets the default value for an unchecked cell in the column.

  function GetDefaultWidth; virtual;

Gets the default value for the Width property.

  function GetPickList; virtual;

Gets the list of strings in the picklist.

  function GetValueChecked;

Gets the value for the ValueChecked property.

  function GetValueUnchecked;

Gets the value for the ValueUnChecked property.

  procedure ColumnChanged; virtual;

Performs actions needed when a column in the grid is changed.

  procedure AllColumnsChange;

Method used to indicate that all columns in the collection have been changed.

  function CreateTitle; virtual;

Creates a column title used for the grid column.

  procedure SetIndex(); override;

Sets the value for the Index property.

  property IsDefaultFont: Boolean; [r]

Indicates if the default font is in use for the grid column.

public

  constructor Create(); override;

Constructor for the class instance.

  destructor Destroy; override;

Destructor for the class instance.

  procedure Assign(); override;

Copies property values from the specified persistent object to the current class instance.

  procedure FillDefaultFont;

Sets the Font to the value used in the grid control.

  procedure FixDesignFontsPPI(); virtual;

Corrects the design-time PPI for the column title.

  procedure ScaleFontsPPI(); virtual;

Scales the fonts for the column to a specified display density using a scaling factor.

  function IsDefault; virtual;

Indicates if default layout settings are used for the grid column.

  property Grid: TCustomGrid; [r]

The grid control to which this column belongs.

  property DefaultWidth: Integer; [r]

Default width for the column, or -1 when not assigned.

  property StoredWidth: Integer; [r]

Contains the explicit, non-default value assigned to the Width property.

  property WidthChanged: Boolean; [r]

True when the width for the column has been changed.

published

  property Alignment: TAlignment; [rws]

Indicates the alignment for values displayed in the column: left or right aligned, or centered.

  property ButtonStyle: TColumnButtonStyle; [rw]

The style used for a button displayed for cells in the column.

  property Color: TColor; [rws]

Color for the background on the column.

  property DropDownRows: LongInt; [rw]

The number of rows displayed in the drop-down list for a cell editor in the column.

  property Expanded: Boolean; [rw]

Indicates if the drop-down list in the column cell editor is displayed in an expanded state.

  property Font: TFont; [rws]

The font used for text displayed in the column.

  property Layout: TTextLayout; [rws]

The layout (vertical alignment) for text displayed in the column.

  property MinSize: Integer; [rws]

The minimum size for the column in pixels.

  property MaxSize: Integer; [rws]

The maximum size for the column in pixels.

  property PickList: TStrings; [rw]

The list with the values that can be selected for a cell in the column using a drop-down list.

  property ReadOnly: Boolean; [rws]

True if the values in the column cannot be changed at run-time using the cell editor.

  property SizePriority: Integer; [rws]

The auto-sizing priority for the column.

  property Tag: PtrInt; [rw]

Contains a Pointer to an Integer type.

  property Title: TGridColumnTitle; [rw]

Contains the attributes for the title in the fixed header for the column.

  property Width: Integer; [rws]

The display width in pixels for the column on its Grid control.

  property Visible: Boolean; [rws]

True if the column is visible (not hidden) on the Grid control.

  property ValueChecked: string; [rws]

Contains the checked value for a check box in the column.

  property ValueUnchecked: string; [rws]

Contains the unchecked value for a check box in the column.

end;

TGridColumn

Implements a column definition used for tabular data in TCustomGrid.

TCollectionItem

TPersistent,IFPObserved

TObject

TGridColumns

Collection used to store column definitions for a grid control.

TCustomGrid.Columns

Definitions for the columns displayed the grid.

TGridColumnTitle

Provides properties and methods need to represent a column title in a grid.