TData Control All Members

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TData Control All Members

TData Control Properties

AllowEarlyOpen	Can be set to False to work around limitations of some data bound controls.
Appearance	Enables/disables 3-D display effects for the control.
ApproxCount	Sets/returns the approximate number of rows in recordset in user events mode.
Array	Specifies an XArrayDB object as the control's data source.
AutoRefresh	Controls automatic refresh of detail control upon change in master.
BackColor	Sets/returns the background color.
BOFAction	Action taken on reaching BOF (begin of file).
ButtonAdd	Determines if the Add button is visible.
ButtonBookmark	Determines if the Bookmarks button is visible.
ButtonCancel	Determines if the Cancel button is visible.
ButtonDelete	Determines if the Delete button is visible.
ButtonFind	Determines if the Find button is visible.
ButtonFirst	Determines if the First and Last buttons are visible.
ButtonNext	Determines if the Previous and Next buttons are visible.
ButtonPage	Determines if the Previous Page and Next Page buttons are visible.
ButtonQuery	Determines if the Query button is visible.
ButtonUpdate	Determines if the Update button is visible.
CacheSize	Returns/sets the number of rows to keep cached navigating through the recordset.
CallDataRead	Specifies if the DataRead event is fired.
CallDataWrite	Specifies if the DataWrite event is fired.
Caption	Text displayed in the middle section of the control.
ChangeInProgress	If True, prevents automatic refresh while making batch changes.
CommandTimeout	Amount of time to wait for the command to return (in seconds).
CommandType	Indicates the type of command.
ConfirmCancel	Determines whether to show confirmation message box when the Cancel button is pressed.
ConfirmDelete	Determines whether to show confirmation message box when the Delete button is pressed.
ConnectionString	Determines the ADO connection string used to establish data connection in data source mode.
ConnectionTimeout	Amount of time to wait for the connection to open before aborting it.
Constraints	Contains a collection of constraint objects.
ConvertEmptyToNull	Specifies if empty string values should be converted to Null on save.
ConvertNullToEmpty	Specifies if Null values of string fields should be converted to empty strings on retrieval.
CursorLocation	Determines if server-side or client-side cursors are used (which cursor engine used).
CursorType	Sets the cursor type to use for the underlying recordset.
DataMember	Qualifies the DataSource property setting.
DataMode	Specifies the type of data storage on which the control operates.
DataSource	Sets/returns the source of underlying data in DataMode = 0 – DataSource.
DesignConnection	If True, live database connection is always used at design time.
DesignTimeout	Seconds to wait for database connection at design time before aborting it.
Enabled	Enables/disables user interaction.
EOFAction	Action taken on reaching EOF (end of file).
ErrorMsgCaption	Overrides default message box caption for run-time errors.
ErrorMsgRestore	Specifies whether to prompt for resetting value on field value errors.
Fields	Contains a collection of field objects.
Filtered	Enables/disables filtering.
FilterExpressions	Contains a collection of filter expression objects.
Font	Specifies the font used to display the caption text.
ForeColor	Sets/returns the foreground color.
LinkType	Specifies how this control is linked to another TData control.
LockType	Sets/returns the type of locking (concurrency) to use.
ManualUpdate	If True, SourceRecordset changes are not automatically saved to the database on Update.
Master	Specifies the TData control on which this control is dependent.
MaxRecords	Maximum number of records to retrieve when opened.
Mode	Describes the mode in which the current connection is opened.
MouseIcon	Sets a custom mouse icon.
MousePointer	The type of mouse pointer displayed when over the control.
NameSubstitute	Used in containers that don’t support the standard Name property (for example, VC++).
NamedBookmarks	Contains a collection of named bookmark objects, for Bookmarks button dialog.
Orientation	Control's orientation, either horizontal or vertical.
PageSize	Sets/returns the number of records in a page.
Parameters	Contains a collection of parameter objects.
Password	For OLE DB providers that support password.
PooledConnectionCount	Returns the number of connections in the pool shared by all TData controls.
PooledConnections	Returns connections in the pool shared by all TData controls.
PropertyExpressions	Contains a collection of property expression objects.
QueryFilter	Returns the Filter string that can be applied to an ADO recordset, composed from user-supplied data in query mode.
QueryMode	If True, the control is in query mode.
Recordset	Returns the ADO recordset object representing control's data.
RecordSource	Source of recordset in data source mode: SQL, other command text or table name.
RefreshOnSrcChange	Determines whether SourceRecordset changes trigger refresh.
ResyncAfterUpdate	Determines whether to call SourceRecordset.Resync immediately after SourceRecordset.Update.
SafeMode	If True, ADO recordsets are used with extra caution, avoiding certain problems in various OLE DB providers.
SourceConnection	Sets/returns the ADO connection used to connect to underlying data in data source mode.
SourceRecordset	Sets/returns the ADO recordset used as underlying data in data source mode.
Tooltips	Determines if the button tooltips are enabled.
UserName	For OLE DB providers that support user name.

TData Control Methods

ArrayIndexToBookmark	Converts array index to bookmark in memory array mode.
BookmarkToArrayIndex	Converts bookmark to array index in memory array mode.
ButtonEnabled	Returns the enabled state of a control button.
CancelUpdate	Enhanced version of ADO CancelUpdate, includes resetting bound controls.
Drag	Begins, ends, or cancels a drag operation of the control.
EnableButton	Sets the enabled state of a button.
Move	Moves the position of the control on the form.
PressButton	Invokes the action of a control’s button.
RaiseError	Used to specify error description in user mode events.
Refresh	Refetches all data.
RetrieveFields	Retrieves field layout from the source recordset.
SetButtonPicture	Changes the picture on a button.
SetUIString	Changes a string shown to the end-user.
ShowWhatsThis	Displays the appropriate help topic for the control.
UpdateFields	Updates the recordset with modified values from bound controls.
ZOrder	Places the control at the front or back of the z-order.

TData Control Events

ButtonPressed	Occurs when a control button is pressed.
ButtonStateChanged	Occurs when a control button's enable state changes.
CalcFields	Occurs before calculated field expressions are evaluated.
CalcFieldsComplete	Occurs after calculated field expressions have been evaluated.
DataRead	Occurs immediately after retrieving a row of values from the data source.
DataWrite	Occurs immediately before saving changed values to the data source.
Error	Occurs as a result of an error that takes place when no user code is being executed.
FieldChangeComplete	Occurs after a field value has changed.
Filter	Occurs before filter expressions are evaluated.
FilterComplete	Occurs after filter expressions have been evaluated.
GetBookmarkName	Occurs when Bookmarks Dialog is being opened. Allows you to specify the current bookmark name.
MoveComplete	Occurs after the current row position has changed.
OpenData	Occurs at startup and on every refresh. Allows the user to set the underlying recordset (SourceRecordset property) or XArrayDB (Array property) object.
OpenDataComplete	Occurs at startup and on every refresh, after the OpenData event.
RecordChangeComplete	Occurs after a record has been added/deleted/updated/restored.
RecordsetChangeComplete	Occurs after the whole recordset has changed.
UserAddData	Occurs when a new row is added in DataMode = 2 – UserEvents.
UserDeleteRow	Occurs when a row needs to be deleted in DataMode = 2 – UserEvents.
UserFindData	Occurs in DataMode = 2 - UserEvents, when the control needs to find a row based upon a simple filter.
UserReadData	Occurs when the control requires data in DataMode = 2 – UserEvents.
UserWriteData	Occurs when a row needs to be modified in DataMode = 2 – UserEvents.
WillChangeField	Occurs before a field value changes.
WillChangeRecord	Occurs before the current row position changes.
WillChangeRecordSet	Occurs before the whole contents of the recordset change due to a pending operation.
WillMove	Occurs before the current row position changes.
WillOpenData	Occurs at startup and on every refresh, before the OpenData event.