The type of data source from which the control gets its value. This can be one of the following:
Setting | Description |
---|---|
Database Column (default) |
The control value will come from a column within a database table. |
Datasource Parameter | This setting is available if the Source Type of a form is Stored Procedure. The control value is retrieved from the Data Source of a form. The supported parameters have either the InputOutput or Output return type. |
Code Expression | The control value will be derived from an expression specific to the particular programming language being used. This could be a function that returns a value, a pre-existing variable or any other valid language construct that will evaluate to a definite value. |
Special Value | This option is available only for controls located inside the Calendar or Report components.
This type is applicable to the controls used to display Date (if the Data Type property is equal to Date). |