Colo change on Error Message
Hello,
somewhere I have seen an example how to change the color of an label if an error message is there.
Knows someone about this?
Thanke,
ThomasW.
Not that I know of. You have no control over the standard validator.
The solution I offered you is not exactly a custom validator. A custom validator is a class that implements Validator (and, when required, the StateHolder).
I don't know what your requirements are but if you want to control a Label's color based on validation, I don't know any other ways.
An easier way to tell the user an error occured on a certain field, is to add a message close to the field in question. If you opt for that, then you can do it with the standard validators like this:
<h:message for="yearOfBirth" styleClass="error"/>
The "for" attribute identify the component ID for whom you want the error message(s) displayed.
Then, it's just a matter of adding the message(s) in JSF context...
this.getFacesContext().addMessage(clientId, new FacesMessage(message));
Look at the APIs for FacesMessage for more details on how to add a global or specific message for a given component id (clientId).
Cheers
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I want to change the default error message in apex. for example I wanna change the Not-Null default error message so instead of "Field1 must have some value" I wanna get "Field1 must not be null".
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♦ Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.
♦ Author of Oracle Application Express 3.2 – The Essentials and More -
Hi,
I want to return a relevant Error Message whenever an SQL Exception occurs. For e.g. If a unique Constraint exists i want to return a relevant message like "A record already exists." Can i do the same?
Maybe a good feature to have in the next version of Oracle, if it doesnt exist :)
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SQL> CREATE TABLE t (id NUMBER PRIMARY KEY, descr VARCHAR2(10));
Table created.
SQL> CREATE PACKAGE t_pkg AS
2 PROCEDURE ins_t (p_id IN NUMBER,
3 p_descr IN VARCHAR2);
4 PROCEDURE upd_t (p_id IN NUMBER,
5 p_descr IN VARCHAR2);
6 PROCEDURE del_t (p_id IN NUMBER);
7 END;
8 /
Package created.
SQL> l
1 CREATE PACKAGE BODY t_pkg AS
2 null_id EXCEPTION;
3 no_record EXCEPTION;
4 PRAGMA EXCEPTION_INIT (null_id, -1400);
5
6 PROCEDURE ins_t (p_id IN NUMBER,
7 p_descr IN VARCHAR2) IS
8 BEGIN
9 INSERT INTO t VALUES(p_id, p_descr);
10 EXCEPTION
11 WHEN dup_val_on_index THEN
12 RAISE_APPLICATION_ERROR (-20001, 'what do u think u r trying to do!!!');
13 WHEN null_id THEN
14 RAISE_APPLICATION_ERROR (-20002, 'gimme a break I need an ID');
15 WHEN OTHERS THEN
16 RAISE_APPLICATION_ERROR (-20003, 'now I''m really confused');
17 END;
18
19 PROCEDURE upd_t (p_id IN NUMBER,
20 p_descr IN VARCHAR2) IS
21 BEGIN
22 UPDATE t
23 SET descr = p_descr
24 WHERE id = p_id;
25 IF sql%ROWCOUNT = 0 THEN
26 RAISE no_record;
27 END IF;
28 EXCEPTION
29 WHEN no_record THEN
30 RAISE_APPLICATION_ERROR (-20004, 'It''s not there so I''m not doing it');
31 WHEN OTHERS THEN
32 RAISE_APPLICATION_ERROR (-20003, 'now I''m really confused');
33 END;
34
35 PROCEDURE del_t (p_id IN NUMBER) IS
36 BEGIN
37 DELETE FROM t
38 WHERE id = p_id;
39 IF sql%ROWCOUNT = 0 THEN
40 RAISE no_record;
41 END IF;
42 EXCEPTION
43 WHEN no_record THEN
44 RAISE_APPLICATION_ERROR (-20004, 'It''s not there so I''m not doing it');
45 WHEN OTHERS THEN
46 RAISE_APPLICATION_ERROR (-20003, 'now I''m really confused');
47 END;
48 END;
49 /
Package body created.
SQL> exec t_pkg.ins_t(1, 'One');
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SQL> exec t_pkg.ins_t(1, 'One');
BEGIN t_pkg.ins_t(1, 'One'); END;
ERROR at line 1:
ORA-20001: what do u think u r trying to do!!!
ORA-06512: at "OPS$ORACLE.T_PKG", line 12
ORA-06512: at line 1
SQL> exec t_pkg.upd_t(2, 'Two');
BEGIN t_pkg.upd_t(2, 'Two'); END;
ERROR at line 1:
ORA-20004: It's not there so I'm not doing it
ORA-06512: at "OPS$ORACLE.T_PKG", line 30
ORA-06512: at line 1
SQL> exec t_pkg.upd_t(1, 'Way too long for the field');
BEGIN t_pkg.upd_t(1, 'Way too long for the field'); END;
ERROR at line 1:
ORA-20003: now I'm really confused
ORA-06512: at "OPS$ORACLE.T_PKG", line 32
ORA-06512: at line 1TTFN
John
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