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https://issues.apache.org/jira/browse/WICKET-6941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17466780#comment-17466780
 ] 

ASF GitHub Bot commented on WICKET-6941:
----------------------------------------

reiern70 commented on a change in pull request #491:
URL: https://github.com/apache/wicket/pull/491#discussion_r776660926



##########
File path: 
wicket-extensions/src/main/java/org/apache/wicket/extensions/markup/html/repeater/data/table/HeadersToolbar.java
##########
@@ -71,7 +71,10 @@
 
                                for (IColumn<T, S> column : table.getColumns())
                                {
-                                       columnsModels.add(Model.of(column));
+                                       if (column.isVisible())

Review comment:
       I'm not sure this is the only involved toolbar that needs to be fixed... 
Did you run
   
   `mvn clean install`
   
   ?

##########
File path: 
wicket-extensions/src/main/java/org/apache/wicket/extensions/markup/html/repeater/data/grid/ICellPopulator.java
##########
@@ -71,4 +71,8 @@
         */
        void populateItem(final Item<ICellPopulator<T>> cellItem, final String 
componentId,
                final IModel<T> rowModel);
+               
+       boolean isVisible();

Review comment:
       I would prefer this to be be 
   
   ```
   default boolean isVisible() {
       return true;
   }
   
   ```
   
   and no setter.

##########
File path: 
wicket-extensions/src/main/java/org/apache/wicket/extensions/markup/html/repeater/data/grid/PropertyPopulator.java
##########
@@ -74,4 +75,16 @@ public void populateItem(final Item<ICellPopulator<T>> 
cellItem, final String co
        {
                cellItem.add(new Label(componentId, new 
PropertyModel<>(rowModel, property)));
        }
+
+       @Override
+       public boolean isVisible()

Review comment:
       See my comment above.

##########
File path: 
wicket-extensions/src/main/java/org/apache/wicket/extensions/markup/html/repeater/data/table/AbstractColumn.java
##########
@@ -37,6 +37,8 @@
 
        private final S sortProperty;
 
+       private boolean visible = true; 

Review comment:
       See comment about read only

##########
File path: 
wicket-extensions/src/main/java/org/apache/wicket/extensions/markup/html/repeater/data/grid/ICellPopulator.java
##########
@@ -71,4 +71,8 @@
         */
        void populateItem(final Item<ICellPopulator<T>> cellItem, final String 
componentId,
                final IModel<T> rowModel);
+               
+       boolean isVisible();
+       
+       void setVisible(boolean visible);

Review comment:
       As said I would prefer this to be only read-only




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> Add visible attribute to AbstractColumn to hide/show columns in 
> DataTable/DataGridView.
> ---------------------------------------------------------------------------------------
>
>                 Key: WICKET-6941
>                 URL: https://issues.apache.org/jira/browse/WICKET-6941
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket-extensions
>    Affects Versions: 9.7.0
>            Reporter: Rob Stokes
>            Priority: Major
>
> Added isVisible/setVisible methods to ICellPopulator interface to control 
> rendering of columns in a DataTable/DataGridView. Visible attribute is 
> checked for the column in AbstractDataGridView and HeadersToolbar.



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