How to get unchecked row in gridpanel

[tangcan2003]

I know how to get checked row in gridpanel ,like this:

 <selectionmodel>
           <ext:CheckboxSelectionModel  ID="SelectionModel1" runat="server" SingleSelect="false">
           
           <AjaxEvents>
                <SelectionChange OnEvent="SubmitSelection" Buffer="250">
                    
                                                                                       
                </SelectionChange>
            </AjaxEvents>
           </ext:CheckboxSelectionModel>
        </selectionmodel>

.....

       RowSelectionModel sm = this.GridPanel1.SelectionModel.Primary as RowSelectionModel;

        StringBuilder sb = new StringBuilder();
        foreach (SelectedRow row in sm.SelectedRows)
        {
           

            sb.AppendFormat("RecordID: {0}&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Row index: {1}<br/>", row.RecordID, row.RowIndex);
        }

but,when I unchecked a row ,how to get which row is unchecked?

hope's answer,thanks!

[Vladimir]

Hi,

There is RowDeselect listener
*

[tangcan2003]

thanks,vladimir,u can mark this to resolve!