Hi Janak
Unfortunately I cannot use the focus lost as I need to valid each item when
chages are made, If I use the focus lost method then I get a call to the
validation once for the correct item and when I put the focus back to the item
if the validation fails then the other items focus lost method is fired.
I thought about using a client side vefifier but the verifier must call the
validation method on the server. How do I do a call to the server side from the
client object?
Paul
>Hi Paul,
>
>ValueChanged Listener will be called only if the value changes.
>
>Isn't it possible to do the validation on FocusLost event?
>
>Alternatively you could extend the component to set an InputVerifier on the
>client side:
>
>Server-side class:
>
> public class ULCMyTextField extends ULCTextField {
>
> public ULCMyTextField(int i) {
> super(i);
> }
>
> protected String typeString() {
> return "mypackage.UIMyTextField";
> }
>
> }
>
>Client-side class:
>
> public class UIMyTextField extends UITextField {
>
> protected void postInitializeState() {
> super.postInitializeState();
> getBasicTextField().setInputVerifier(new
> InputVerifier() {
>
> public boolean verify(JComponent input) {
> JTextField text = ((JTextField)input);
> return text.getText().equals("pass");
> }
>
> });
> }
>
> }
>
>The advantage is that there will be no server round trip.
>
>The disadvantage is that your business logic is moving to the client and if
>you have to do complex validation against your business objects then you
>will have to make all that available on the client.
>
>I hope this helps.
>
>Thanks and regards,
>
>Janak
>
>>-----Original Message-----
>>From: [EMAIL PROTECTED]
>>[mailto:[EMAIL PROTECTED] Behalf Of
>>[EMAIL PROTECTED]
>>Sent: Monday, October 16, 2006 2:38 PM
>>To: [email protected]
>>Subject: [ULC-developer] component validation - Navigation
>>
>>
>>Hi all
>>
>>I have to perform validation on a text field/ check box / radio
>>group etc and if the validation fails then the focus should stay
>>within the item being validated. I have added a value changed
>>listener and reset the focus back to the item being validated but
>>after being validated once and the user navigates out again the
>>value changed will not be called. Also, if the validation is being
>>performed within a dialog window with a default button set then
>>there is also a problem. the user changes the text in a text field
>>and hits enter, the validation method is called but the button is
>>also being pressed i.e. Focus does not stay in the item being validated.
>>
>>I dont want any navigation out of the field until the validation
>>method returns true. I have seen an InputVerifier in Swing that
>>seems to provide exactly the required functionality but I don't
>>know how to implement this in ULC. Or do you have any other ideas?
>>
>>I have searched the archives for an answer to my problem, but have
>>not found anything so I would be gratefull for your help
>>
>>Paul Harrison
>>
>>
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>
>
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