| True DataControl 8.0 Reference > True DataControl Control > TData Control Events > OpenData Event |
OpenData Event
Occurs at startup and on every refresh. Allows the user to set the underlying recordset (SourceRecordset property) or XArrayDB (Array property) object.
TData_OpenData ()
Arguments: None
The OpenData event fires when a TData control begins to populate its recordset, which occurs under the following circumstances:
· At the start of program execution.
· When the control is refreshed explicitly via the Refresh method with NoEvents argument set to False.
· When the control is refreshed implicitly: as a result of asynchronous expression evaluation; repositioning the Master control to a different row; or a change in SourceRecordset.
The OpenData event occurs after WillOpenData, before OpenDataComplete.
In data source mode (DataMode = 0 – DataSource), it gives you an opportunity to set the SourceRecordset property to a desired recordset, or to modify the SourceRecordset created by the TData control. See Data Source Mode for details.
In memory array mode (DataMode = 1 – MemoryArray), it allows the user to set the Array property to an XArrayDB object, or to re-dimension, populate and modify the standard XArrayDB object created by the TData control. See Memory Array Mode for details.
See Also