[Overview][Constants][Types][Classes][Procedures and functions][Index] |
[Properties (by Name)] [Methods (by Name)] [Events (by Name)]
Implements a display column for the TDBGrid control
Source position: dbgrids.pas line 257
type TColumn = class(TGridColumn) |
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protected |
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function CreateTitle; override; |
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CreateTitle - creates a column title and returns it in the result |
function GetDefaultAlignment; override; |
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Gets the default alignment for the Field in the column definition |
function GetDefaultDisplayFormat; |
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Gets the default display format for the Field in a column |
function GetDefaultValueChecked; override; |
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Gets the default value for a Checkbox in the Checked state as a String |
function GetDefaultValueUnchecked; override; |
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Gets the default String value for a Checkbox in the UnChecked state |
function GetDefaultVisible; override; |
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GetDefaultVisible - returns the default value for the Visible property |
function GetDisplayName; override; |
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Gets the display name for the collection item |
function GetDefaultReadOnly; override; |
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Gets the default value for the ReadOnly property |
function GetDefaultWidth; override; |
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Gets the effective width for the column |
function GetPickList; override; |
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Gets the values in the pick list for the column |
property IsAutomaticColumn: Boolean; [r] |
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Indicates if the column was automatically added at run-time |
property IsDesignColumn: Boolean; [r] |
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Indicates if the column was added at design-time |
procedure LinkField; |
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Establishes a link between the FieldName and the Field in a Dataset |
public |
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constructor Create(); override; |
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Constructor for the TColumn instance |
procedure Assign(); override; |
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Stores properties from a persistent class in the current class instance |
function IsDefault; override; |
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IsDefault - returns True if this column is the default |
property DesignIndex: Integer; [r] |
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Order for the column in its collection at design-time |
property Field: TField; [rw] |
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Field in the Dataset associated with this Column |
published |
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property FieldName: string; [rw] |
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Name of the Field with data for the column |
property DisplayFormat: string; [rws] |
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The format to be used for display in this column |
end; |
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Implements a display column for the TDBGrid control |
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TGridColumn - a column of similar data items in a grid |
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TCollectionItem |
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TObject |
TColumn is a TGridColumn descendant which implements a display column for the TDBGrid grid control. TColumn extends the ancestor class to provide support for using TField for data access, display formatting, alignment, as well as use of checkbox and lookuplist Fields. TColumn also implements support for features in TDBGrid like: automatic rows, and design-time vs run-time column ordering.
TColumn is the class type used for items in the TDBGridColumns collection.
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Implements a collection for columns in a database grid |
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Columns provides access to columns defined for the database grid control |
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TGridColumn - a column of similar data items in a grid |
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#fcl.DB.TField |
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#fcl.DB.TDataset |
lazarus-ccr.sourceforge.net |