[CLOSED] Multi-Select Tree and Selection Models

[PhilG]

Hi,

I'm using the Multi-select tree panel (http://forums.ext.net/showthread.php?10022)

I'd like to fire some code on the selection change, but I'm not sure how to do this - if I add a SelectionModel to the tree definition then the multi-select stops working. For example, if you change your example in the post above like this, the multi-select stops working (instead, it behaves like a normal single-select tree):

<cc:MultiSelectTreePanel runat="server" Height="300" EnableDD="true">
        <Root>
            <ext:TreeNode Text="Composers" Expanded="true">
                <Nodes>
                    <ext:TreeNode Text="Beethoven" Expanded="true">
                        <Nodes>
                            <ext:TreeNode Text="Concertos" Expanded="true">
                                <Nodes>
                                    <ext:TreeNode Text="Concert 1" />
                                    <ext:TreeNode Text="Concert 2" />
                                </Nodes>
                            </ext:TreeNode>
                        </Nodes>
                    </ext:TreeNode>
                </Nodes>
            </ext:TreeNode>
        </Root>
        <SelectionModel>
              <ext:MultiSelectionModel runat="server">
              <Listeners>
                <SelectionChange Fn="Cablesense.handleTreeNodeSelectionChange" />
              </Listeners>
              </ext:MultiSelectionModel>
        </SelectionModel>

</cc:MultiSelectTreePanel>

Is "MultiSelectionModel" the right choice? I see in the javascript for the multi-select that they define a Ext.ux.FixedMultiSelectionModel, do I need to somehow tell it to use that?

Thanks for the help.

[Daniil]

Hi,

When you define the SelectionModel for the MultiSelectTreePanel it replace the internal FixedMultiSelectionModel one.

So, you should not define any SelectionModel.

Please try to set up:

<Listeners>
    <Render Handler="this.getSelectionModel().on('selectionchange', function () {
                         alert('selectionchange');
                     });" />
</Listeners>

for the MultiSelectTreePanel.