A DataWindow data expression accesses all the data in the currently selected rows when you specify the Data and Selected properties. Selected rows are always in the primary buffer.
dwcontrol.Object.Data {.Primary } {.datasource }.Selected
Parameter |
Description |
|---|---|
dwcontrol |
The name of the DataWindow control or child DataWindow in which you want to get or set data. |
datasource (optional) |
The source of the data. Values are:
|
The datatype of the expression is Any. The expression returns an array of structures or user objects. There is one structure element or instance variable for each column in the DataWindow object. The datatype of each element matches the datatype of the corresponding column.
When you specify selected rows, the expression always returns an array, and you must assign the result to an array even if you know there is only one row selected.
Because the primary buffer is the only applicable buffer for selected data and current data is the default, these expressions are all equivalent. They access data in the selected rows:
dw_1.Object.Data.Selected
dw_1.Object.Data.Primary.Selected
dw_1.Object.Data.Current.Selected
dw_1.Object.Data.Primary.Current.Selected
Both these expressions access original values for selected rows:
dw_1.Object.Data.Original.Selected
dw_1.Object.Data.Primary.Original.Selected
This example takes the values in the selected rows in dw_2 and populates a DropDownDataWindow in dw_1 with the values, replacing existing data in the DropDownDataWindow. The column with the DropDownDataWindow is called useroptions. The columns of the DataWindow object in dw_2 must match the columns of the DataWindow object for the DropDownDataWindow:
dw_1.Object.useroptions.Object.Data = &
dw_2.Object.Data.Selected
