netui
netui:bindingUpdateErrors Tag
Renders the set of error messages found during the process of resolving
data binding expressions (pageFlow.firstname, requestScope.firstname, etc.).
<netui:bindingUpdateErrors
[alwaysReport="boolean_alwaysReport"]
[expression="string_databinding_expression"] />
Renders the set of error messages found during the process of resolving
data binding expressions (pageFlow.firstname, requestScope.firstname, etc.).
The tag is intended for development use and not for error reporting in deployed applications. When the
NetUI framework is not in development mode, this tag will do nothing.
Attributes |
alwaysReport |
Required: No | Type:
boolean |
Supports runtime evaluation / JSP Expression Language: Yes |
Boolean. If isAlwaysReport is set to true, then the errors will be displayed in Production mode
as well as in Development mode. Otherwise, the errors will be displayed only in Development mode. |
expression |
Required: No | Type:
String |
Supports runtime evaluation / JSP Expression Language: Yes |
String. The data binding expression to match for binding errors.
If a data binding expression is specified, only binding errors for that expression will be displayed.
Otherwise, all errors will be displayed. |
In this first sample, because the <netui:bindingUpdateErrors/> tag is unqualified,
messages will be displayed if any data binding errors occurred when a form was
posted. The messages are displayed on the page and the command window.
<netui:bindingUpdateErrors />
In this next sample, only binding errors for the expression {actionForm.firstName}
will be displayed on the page and the command window.
<netui:bindingUpdateErrors expression="actionForm.firstName"/>
Note, the expression used in this tag needs to match the expressions used to POST form data. This
tag's expression
attribute must resolve to a valid NetUI expression.
Tag Information |
Tag Class | org.apache.beehive.netui.tags.html.BindingUpdateErrors |
TagExtraInfo Class | None |
Body Content | empty |
Display Name | None |