Description
Sets the value of an item in a value list or code table for a column in a DataWindow control or DataStore. (A value list is called a code table when it has both display and data values.) SetValue does not affect the data stored in the column.
Applies to
|
DataWindow type |
Method applies to |
|---|---|
|
PowerBuilder |
DataWindow control, DataWindowChild object, DataStore object |
Syntax
PowerBuilder
integer dwcontrol.SetValue ( string column, integer index, string value ) integer dwcontrol.SetValue ( integer column, integer index, string value )
|
Argument |
Description |
|---|---|
|
dwcontrol |
A reference to a DataWindow control or DataStore. |
|
column |
The column that contains the value list or code table. Column can be a column number or a column name. The edit style of the column can be DropDownListBox, Edit, or RadioButton. SetValue has no effect when column has the EditMask or DropDownDataWindow edit style. |
|
index |
The number of the item in the value list or code table for which you want to set the value. |
|
value |
A string whose value is the new value for the item. For a code table, use a tab (~t in PowerBuilder) to separate the display value from the data value ("Texas~tTX"). The data value must be a string that can be converted to the datatype of the column. |
Return value
Returns 1 if it succeeds and -1 if an error occurs. If any argument's value is null, the method returns null.
Examples
This statement sets the value of item 3 in the value list for the column emp_state of dw_employee to Texas:
dw_employee.SetValue("emp_state", 3, "Texas")This statement sets the display value of item 3 in the code table for the column named emp_state of dw_employee to Texas and the data value to TX:
dw_employee.SetValue("emp_state", 3, "Texas~tTX")The following statements use a SQL cursor and FETCH statement to populate the ListBox portion of a DropDownListBox style column called product_col of a DataWindow object with code table values:
integer prod_code, i = 1
string prod_name
DECLARE prodcur CURSOR FOR
SELECT product.name, product.code
FROM product USING SQLCA;
CONNECT USING SQLCA;
IF SQLCA.SQLCode <> 0 THEN
MessageBox("Status","Connect Failed " &
+ SQLCA.SQLErrText)
RETURN
END IF
OPEN prodcur;
IF SQLCA.SQLCode <> 0 THEN
MessageBox("Status","Cursor Open Failed " &
+ SQLCA.SQLErrText)
RETURN
END IF
FETCH prodcur INTO :prod_name, :prod_code;
DO WHILE SQLCA.SQLCode = 0
dw_products.SetValue("product_col", i, &
prod_name + "~t" + String(prod_code))
i = i + 1
FETCH prodcur INTO :prod_name, :prod_code;
LOOP
CLOSE prodcur;
DISCONNECT USING SQLCA;See also
