ars_GetField(ctrl, schema, id)

id is the numerical Field Id.

See also ars_GetListField, ars_GetFieldByName, and ars_GetFieldTable

On success

returns a reference to HASH

On failure

returns undef

Example:

         ($field = ars_GetField($c, "User", 8)) || die $arr_errstr;
         print $field->{"helpText"};

	($fh = ars_GetField($c, $S, $f{'Status'})) ||
	    die "GetField: $ars_errstr (no Status field in this schema?)";

	if($fh->{dataType} !~ /enum/i) { # ignore case of "enum"
	    die "'Status' field is not an ENUM.\n";
	}

	@enumvals = @{$fh->{limit}};

	print "Status values: ".join(',', @enumvals)."\n";

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