/// <summary>
/// Fires after the active page has been changed.
/// </summary>
/// <param name="this">
/// </param>
/// <param name="pageData"><p>An object that has these properties:</p>
/// <ul>
/// <li><p><c>total</c> : Number</p>
/// <p>The total number of records in the dataset as returned by the server</p></li>
/// <li><p><c>currentPage</c> : Number</p>
/// <p>The current page number</p></li>
/// <li><p><c>pageCount</c> : Number</p>
/// <p>The total number of pages (calculated from the total number of records in the dataset as returned by the
/// server and the current <see cref="Ext.data.StoreConfig.pageSize">pageSize</see>)</p></li>
/// <li><p><c>toRecord</c> : Number</p>
/// <p>The starting record index for the current page</p></li>
/// <li><p><c>fromRecord</c> : Number</p>
/// <p>The ending record index for the current page</p></li>
/// </ul>
/// </param>
/// <param name="eOpts"><p>The options object passed to <see cref="Ext.util.Observable.addListener">Ext.util.Observable.addListener</see>.</p>
/// </param>
public void change(Paging @this, object pageData, object eOpts){}
/// <summary>
/// Fires just before the active page is changed. Return false to prevent the active page from being changed.
/// </summary>
/// <param name="this">
/// </param>
/// <param name="page"><p>The page number that will be loaded on change</p>
/// </param>
/// <param name="eOpts"><p>The options object passed to <see cref="Ext.util.Observable.addListener">Ext.util.Observable.addListener</see>.</p>
/// </param>
public void beforechange(Paging @this, JsNumber page, object eOpts){}