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https://issues.apache.org/jira/browse/TRINIDAD-930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12599321#action_12599321
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Martin Koci commented on TRINIDAD-930:
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I think this is unambiguously a bug:
1) No other component/renderer has that behaviour
2) If you look in getSubmittedValue implementations in trinidad, only
SimpleSelectOneRenderer contains that strange code
3) Why SimpleSelectOneRenderer contains algorithm saying: this component was
not sumbitted, but indicate that it was - without any explanation.
4) From user view: no JSF user expects that component modifies backing bean
values although it was not in form (was not a part of a user interaction)
5) And last but not least: we use trinidad in production with this patch
applied without any unexpected results. Without this patch users reported data
lost/unexpected modifications.
> tr:selectOneChoice resets value if not in form
> ----------------------------------------------
>
> Key: TRINIDAD-930
> URL: https://issues.apache.org/jira/browse/TRINIDAD-930
> Project: MyFaces Trinidad
> Issue Type: Bug
> Components: Components
> Affects Versions: 1.2.6-core
> Environment: JSF RI 1.2, Trinidad 1.2 trunk
> Reporter: Martin Koci
> Priority: Critical
> Fix For: 1.2.5-core
>
> Attachments: SimpleSelectOneRenderer.java.patch
>
>
> If tr:selectOneChoice is outside a h:form, it resets value used in
> value="#{}". Test case:
> JSP snippet:
> <tr:selectOneChoice value="#{testBean.property}" unselectedLabel="(not
> selected)">
> <f:selectItem itemValue="value1" itemLabel="Item 1"/>
> </tr:selectOneChoice>
> <h:form> <!-- tr:selectOneChoice is not in the form -->
> <h:commandButton value="Ok" />
> </h:form>
> managed bean in session scope:
> public class TestBean {
>
> private String property = "value1";
>
> public String getProperty() {
> return property;
> }
> public void setProperty(String property) {
> this.property = property;
> }
> }
>
> Steps to reproduce problem:
> 1) Display jsp page - it shows "Item 1" in combobox
> 2) Click on "Ok" button
> 3) Value in combobox will change to "(not selected)"
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