When you’re working with lists of objects, you need a way to identify a specific item in the list. For example, suppose you have a
Page that lists five columns from a table called accounts in your database. You can use the XPath picker to select the column called “Email” from the accounts table, but you cannot use it to select a specific E-mail address from the database.
To select a specific item from a list, ActiveGrid provides the special system variable called
sys/selected (
ActiveGrid Session Information Variable). The
sys/selected variable points to the item last selected by the user. The server determines the selected object from the Message Ref of the button or link that the user clicked (
Buttons and Links).
You can also select ActiveGrid’s session variables in the Message Ref picker (
ActiveGrid Session Information Variable). To use the Message Ref picker to tie a
Page element to a data reference, simply navigate down the tree until you find the data reference you want, click on it and then click
OK.