There are many contexts in which passing data from one page to another via the URL is a convenient means of transferring data. 

Parameters such as primary and foreign key values can be passed from one page to another through the destination page’s URL.  These URL’s are specified in the tag’s Properties dialog.  For example, you can create a "wizard" from a New Orders page to a New Order Details page by passing the OrderID of the new Orders record on the URL so that the OrderDetails.OrderID field is automatically set in the New Order Details page.

Using URL parameters with buttons

URL parameters can be used for passing data from one page to another when a button is clicked.  For example, when a user clicks the “Show” button on an Show Table page, the the primary key value (ID) of the selected table row entry can be passed to a Show Record page to display the full details of the selected record.

Select which URL parameters to pass in the Page Properties dialog, Bindings tab for a button.

Using URL parameters in WHERE clauses

URL parameters can be used when selecting and displaying data in an SQL query.  A URL parameter can provide a value that is compared to the record's field value when that record is read at runtime.  Based on the comparison of the two, the record is either included in or excluded from the result set.  When Iron Speed Designer generates your application, it creates the “addFilter” mechanism that applies the comparison.

Use the Add WHERE Clause dialog, accessed in the Query tab of the Page Properties dialog, to select the URL parameters to use in the query..

Using URL parameters to initialize field values

URL parameters can be used to initialize FieldValue components.

Select which URL parameter to use in the Page Properties dialog, Bindings tab, Set Initial Value To section.

See

URL Query String Format

Passing Primary and Foreign Key Values in URL’s

Passing Field Values in URL’s

Example: Passing a Record ID from an Add Record Page