(Windows only; GUI
for .NET only)
Specifies which columns are bound to a ProBindingSource
instance, exposing them for bound .NET controls. You use these method
overloads before you bind a data source object to a previously unbound
ProBindingSource instance.
Note: Do not use this
method on a ProBindingSource that is already bound to a data source
object. The ProBindingSource throws a .NET exception if this method
is used after binding to a data source object.
Return
type: VOID
Access: PUBLIC
Applies to:
Progress.Data.BindingSource class
Syntax
BindingSource:SetFields ( INPUT include-fields AS CHARACTER ,
INPUT except-fields AS CHARACTER ,
{ ""
| INPUT parent-buffer-hdl AS HANDLE
| INPUT parent-buffer-name AS CHARACTER } )
|
-
include-fields
- A CHARACTER expression that evaluates to a comma-separated list
of fields in the ABL data source object to bind to the ProBindingSource.
To include all fields, specify an asterisk (*)
in include-fields. To include all but a few fields, specify
an asterisk (*) in include-fields and
a comma-separated list of fields to exclude in except-fields.
If include-fields contains specific fields, except-fields is
ignored.
When including fields for a ProDataSet object, you must
specify a comma-separated list of fields to display in display order
and qualify the field names with their buffer name. For example:
"table1.field1,table1.field2,table2.field1,table1.field3"
|
You must specify at least one field from each
table in the hierarchy to be displayed.
When including fields
for a query or a join query, you must specify a comma-separated
list of fields to display in display order and you should qualify
ambiguous field names with their buffer name.
Do not specify
a RAW temp-table or database field in include-fields.
If you explicitly specify a RAW field, the AVM generates a run-time
error. If you specify an asterisk ("*") to include all fields and
there is a RAW field in the table, the AVM excludes it automatically
even if it is not specified in except-fields.
-
except-fields
- A CHARACTER expression that evaluates to a comma-separated list
of fields in the ABL data source object to exclude from binding
to the ProBindingSource. You can specify fields to exclude only
when include-fields contains an asterisk (*).
If you do not have any fields to exclude, you must specify the empty
string (""). If include-fields contains
specific fields, except-fields is ignored.
-
parent-buffer-name
- A CHARACTER variable that represents the name of a parent buffer in
a ProDataSet object. This corresponds to the top-level table displayed in
a hierarchical control (such as a grid or a treeview). If the data
source object is not a ProDataSet, this parameter must be the empty
string (""). If you specify a name and then bind
to another type of data source object, the ProBindingSource throws
a .NET exception.
-
parent-buffer-hdl
- A HANDLE variable that represents the handle to a parent buffer
in a ProDataSet object. This corresponds to the top-level table
displayed in a hierarchical control (such as a grid or a treeview).
If the data source object is not a ProDataSet, this parameter must
be the empty string (""). If you specify a handle
and then bind to another type of data source object, the ProBindingSource
throws a .NET exception.
The following code fragment shows the correct sequence
for using this method:
- Create an unbound ProBindingSource
instance.
- Use SetFields( ) to specify the appropriate columns
to expose.
- Set the ProBindingSource's Handle property to bind the data
source object.
DEFINE VARIABLE pbs AS Progress.Data.BindingSource NO-UNDO.
/* 1 */
pbs = NEW Progress.Data.BindingSource().
/* 2 */
pbs:SetFields("Customer.CustNum,Customer.Name,Customer.State","","").
/* 3 */
pbs:Handle = myQryHdl.
|
