--- "Yu, Yanhui" <[EMAIL PROTECTED]> wrote: > This is posted a couple of times, hope someone can > help me out: > > > > What I need to do is this: I would like to > display an error message to > the > > user in a little more customized way, such as, if > some special characters > > are not allowed in a field, if they entered any of > this special character > > set, (say @#$), I would like to display that "@#$ > is not allowed in this > > field".
You can do things like this in the Struts Validator framework. It is in the nightly source in the contrib/validator directories and posted at http://home.earthlink.net/~dwinterfeldt.; This is a partial code snippet that uses a regular expression to check if any of these characters are in the field you are checking. The regular expresion and the error message are created based on the 'chars' constant. The double quote is escaped because this information is stored in xml. The '^' means all the following are not allowed in the regular expression (mask variable). The 'msg name="mask"' overrides the default error message for the mask validator. The 'arg0 name="mask"' takes precedence over the arg0 element without a name attribute for the mask validator. This is a bit to get into, but it will do what you want. partial snippet from xml configuration file: <formset> <constant name="chars" value=""@#$" /> <form name="nameForm"> <field property="firstName" depends="required,mask"> <msg name="mask" key="my.errors.invalid" /> <arg0 key="nameForm.firstName.displayname"/> <arg0 name="mask" key="${chars}"/> <var> <var-name>mask</var-name> <var-value>[^${chars}]</var-value> </var> </field> </form> </formset> ApplicationResources.properties: my.errors.invalid={0} is not allowed in this field. > Also I would like to change the fields > where erroneous data exist > > into red, possbly change the font of the erroneous > data into a different > > font color. When the user correct the error, I > want the background of > that > > field to be original color and font back to > original color too. You can use logic:messagesPresent in the Struts nightly builds to control formatting. <logic:messagesPresent> <bean:message key="errors.header"/> <ul> <html:messages id="error"> <li><bean:write name="error"/></li> </html:messages> </ul><hr> </logic:messagesPresent> or to check if there is an error for a specific field: <logic:messagesPresent property="lastName"> <ul> <html:messages id="error"> <li><bean:write name="error"/></li> </html:messages> </ul><hr> </logic:messagesPresent> > I would > > also like to focus my cursor in the first > erroneous field, if erroneous > data > > exists, I would like to select that erroneous > data. Can I do that? Javascript David > How > do > > I do that? It seems like Javascript is not > welcomed here, so I am looking > > for a solution in Struts. Hopefully there is a > nice way to do this. > > > > Really appreciate all your time and help, > > Yanhui > > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > __________________________________________________ Do You Yahoo!? Yahoo! Greetings - Send FREE e-cards for every occasion! http://greetings.yahoo.com -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
