Value (ScreenField property)

Set or return the value of a screenfield (ScreenField class)

The Value property sets or returns the value of a ScreenField. The value is set from or copied to a User Language string, and it may be from 0-255 characters in length.

Syntax

%currentString = sfield:Value sfield:Value = newString

Syntax terms

%currentString	A User Language string variable to contain the returned sfield data.
sfield	A reference to an instance of a ScreenField object.
newString	The string value to assign to sfield.

Usage notes

• After a Read of a Screen object, you use the Value method to get any user-entered data for a non-protected field.
• For an example using Value to set field display data, see the "Screen object sample code".
• For an example using Value to get user-entered data, see the example below.

Examples

In the following example, a screenfield %scrfmsg set up to display an error message to the user is populated according to the user command input in screenfield %scrfcmd. The $SirMsg argument identifies the number of the line to be returned from a procedure designated by $SirMsgP (not shown).

... %scr is object screen %scrfmsg is object screenfield %scrfcmd is object screenfield %scrfmsg = %sscr:addField(row=3, column=1, - width=%scr:columns - 1, - color=red) ... %scr:read if %scrfcmd:value = 'x' then %msg = $Sirmsg(11) if %scrfcmd:value = 'y' then %msg = $Sirmsg(12) ... %scrfmsg:value = %msg ...

See also

• The AddField method, whose Value parameter can set display data when the ScreenField is instantiated.

Screen class ScreenField class	List of Screen methods List of ScreenField methods List of Screen API methods	Screen methods syntax ScreenField methods syntax
Notation conventions for methods