navFormAddText (Function)

This function will add a text field to the form that is currently being constructed.

This field can be read from a received form by using navFormReceiveReadText.

Input:

id : DINT (1..2147483647)

Unique ID to identify the field.

title : STRING

The title of the field. Max. 50 characters.

desc : STRING

The description of the field to show below the title while no value has been entered. Max. 60 characters.

required : BOOL (default FALSE)

Set to true to make the field required.

max_length : INT (1..100, default 100)

Maximum length of the string that can be entered in the text field.

placeholder : STRING

The placeholder/help text to show in the field until a value is entered. Max 30 characters.

Returns: INT

Declaration:

FUNCTION navFormAddText : INT;
VAR_INPUT
  id         : DINT;
  title     : STRING;
  desc       : STRING;
  required   : BOOL := FALSE;
  max_length : INT := 100;
  placeholder: STRING;
END_VAR;

Example:

INCLUDE rtcu.inc
 
PROGRAM NavigationExample;
VAR
  rc : INT;
END_VAR;
BEGIN
  ...
  // Add text field to the form:
  rc := navFormAddText(id := 1, title:="Name", desc:="Your name",
                      placeholder := "<Name>", required := TRUE);
  DebugFmt(message := "Add text=\1", v1 := rc);
  ...
END;
END_PROGRAM;