Control Variables

Each toolbar element can have an associated value. This value can be referenced through a variable and used in functions, captions, tooltips etc.




    • The variable name is the id of the control.
    • A control must have a unique id= parameter if you wish to access o set its value.
    • Variables in URL strings are automatically URL Encoded. A URL string is a string that begins with a
      http:// or https// prefix. This can be disabled by using the %VARIABLE(NONE)% syntax to specify no encoding.
    • To force URL encoding on a variable, use the underscore(_) prefix.
    • To force URL encoding on a variable, use the unrescore(_) prefix. Examle: %_VARIABLE%.
    • To encode a variable in UTF8, use the format: %VARIABLE(UTF8)%.
    • To reference control captions, use the format %VARIABLE(CAPTION)%


    <xml id="toolbar">
    <toolbar caption="Variables Example">
    <control type="toolbar">
    <button id=button1 caption="Button 1" value="This is button1 value."></button>
    <button id=button2 caption="Button 2" tooltip="%BUTTON1%></button>

    In the above example, a toolbar is created with two buttons. Moving your mouse over the second button displays a tooltip. The tooltip uses the %BUTTON1% variable.


    The %VARIABLE(CAPTION)% syntax is supported from version 2.4.1

See Also:

System Variables | SetValue() Function