Form select tag "multiple" attribute not recognized [SPR-11678]

[spring-projects-issues]

John Andrew Barnes opened SPR-11678 and commented

After upgrading to 4.0.3-RELEASE, "ctrl + click" on select list items no longer resulted in multiple items being selected. I was only able to select a single list item. After reverting back to 3.2.7-RELEASE all worked as expected. Here's a snippet of the JSP code:

<form:select path="assignedPermissionId" multiple="true" ...

---

Affects: 4.0.3

Issue Links:

• Regression: Form select tag forces "multiple" attribute even when explicitly set to false [SPR-11903] #16522 Regression: Form select tag forces "multiple" attribute even when explicitly set to false

[spring-projects-issues]

Juergen Hoeller commented

Could you post the difference in HTML output? What exactly is 4.0.3's SelectTag rendering differently there?

Juergen

[spring-projects-issues]

John Andrew Barnes commented

Here you go, Juergen

JSP:

<div class="permissionSelectLeft">
<form:select path="unassignedPermissionId" multiple="true" id="selectUnassignedPermissions" cssStyle="width:100%;" size="5">
<form:options items="${securityRoleMgtModel.unassignedPermissions}" itemLabel="name" itemValue="id"/>
</form:select>
</div>

3.2.8.RELEASE output:

<div class="permissionSelectLeft">
<select id="selectUnassignedPermissions" name="unassignedPermissionId" style="width:100%;" multiple="multiple" size="5">
<option value="1">Administer Security</option>
<option value="2">Access Security Home</option>
<option value="3">Access Credential Management</option>
<option value="4">Access Security Role Management</option>
</select>
<input type="hidden" name="_unassignedPermissionId" value="1"/>
</div>

4.0.3.RELEASE output:

<div class="permissionSelectLeft">
<select id="selectUnassignedPermissions" name="unassignedPermissionId" style="width:100%;" size="5">
<option value="1">Administer Security</option>
<option value="2">Access Security Home</option>
<option value="3">Access Credential Management</option>
<option value="4">Access Security Role Management</option>
</select>
</div>

[spring-projects-issues]

Juergen Hoeller commented

Thanks, that helped! Not rendering a multiple attribute there at at all is indeed a bug, and it seems we're not catching the String "true" case anymore: just Boolean.TRUE and "multiple", but not "true" as a given text value of that attribute. To be fixed for 4.0.4. In the meantime, changing the declarations to multiple="multiple" should fix the behavior...

Juergen