maybe we could do something like this in the JSP - the idea is taken
from the TextTag.java which knows to use the errorStyleClass when theres
an error.
...
<%@ page import="java.util.Iterator" %>
<%@ page import="org.apache.struts.Globals" %>
<%@ page import="org.apache.struts.taglib.TagUtils" %>
<%@ page import="org.apache.struts.action.ActionMessages" %>
<%
String errorKey = Globals.ERROR_KEY;
ActionMessages errors = TagUtils.getInstance()
.getActionMessages(pageContext, errorKey);
Iterator iter = errors.properties();
String focusProperty = "some_default_property";
if (iter.hasNext()) {
focusProperty = (String) iter.next(); // default to first property
} %>
<html:form focus="<%= focusProperty %>" action="/someAction.do"
method="post"> ...
</html:form>
Notes:
1. The default_property is the field you would normally focus on if
there is no error.
2. It would be best to put this code in a tag library.
3. The javascript generated by the struts "focus" attribute may need to
be improved (e.g. in a try...catch) just in case a property doesnt
exist.
Please let me know how this approach looks as I am also considering this
for my app.
Thanks,
Paul
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