/// <summary>
/// Handles the state of the GridViewSearchPanel
/// </summary>
/// <param name="searchPanel">The search panel.</param>
/// <param name="persistenceMethod">The persistence method.</param>
public static void HandleGridViewSearchPanelState( GridViewSearchPanel searchPanel, PersistenceMethod persistenceMethod )
{
HandleGridViewSearchPanelState( searchPanel, null, persistenceMethod, null );
}
/// <summary>
/// Handles the state of the GridViewSearchPanel
/// </summary>
/// <param name="searchPanel">The search panel.</param>
/// <param name="gridView">The grid view.</param>
/// <param name="persistenceMethod">The persistence method</param>
/// <param name="persistentCookieExpiryDateTime">The date and time the persistent cookie expires</param>
public static void HandleGridViewSearchPanelState( GridViewSearchPanel searchPanel, GridView gridView,
PersistenceMethod persistenceMethod, DateTime? persistentCookieExpiryDateTime )
{
if ( gridView == null )
{
// try and find the GridView control if it hasn't been explicitly supplied
gridView = FindControl( searchPanel.NamingContainer, searchPanel.GridViewControlID ) as GridView;
}
if ( gridView != null )
{
// restore any previously saved state
gridView.Page.Load += new EventHandler(
delegate( object sender, EventArgs e )
{
if ( !gridView.Page.IsPostBack )
{
GridViewSearchPanelState controlState = GetGridViewSearchPanelState( GetUniqueGridViewName( gridView ), persistenceMethod );
if ( controlState != null )
{
controlState.RestoreState( ref gridView, ref searchPanel );
}
}
}
);
// save state on row command, and rebind searchPanel
gridView.RowCommand += new GridViewCommandEventHandler(
delegate(object sender, GridViewCommandEventArgs e)
{
GridViewSearchPanelState controlState = new GridViewSearchPanelState(gridView, searchPanel);
SaveGridViewSearchPanelState(controlState, GetUniqueGridViewName(gridView),
persistenceMethod, persistentCookieExpiryDateTime);
searchPanel.DataBind();
}
);
// save state when page index changes
gridView.PageIndexChanged += new EventHandler(
delegate( object sender, EventArgs e )
{
GridViewSearchPanelState controlState = new GridViewSearchPanelState( gridView, searchPanel );
SaveGridViewSearchPanelState( controlState, GetUniqueGridViewName( gridView ),
persistenceMethod, persistentCookieExpiryDateTime );
}
);
// save state when grid is sorted
gridView.Sorted += new EventHandler(
delegate( object sender, EventArgs e )
{
GridViewSearchPanelState controlState = new GridViewSearchPanelState( gridView, searchPanel );
SaveGridViewSearchPanelState( controlState, GetUniqueGridViewName( gridView ),
persistenceMethod, persistentCookieExpiryDateTime );
}
);
if (gridView is EntityGridView)
{
// save state when grid's page size changed
((EntityGridView)gridView).PageSizeChanged += new EventHandler(
delegate(object sender, EventArgs e)
{
GridViewSearchPanelState controlState = new GridViewSearchPanelState(gridView, searchPanel);
SaveGridViewSearchPanelState(controlState, GetUniqueGridViewName(gridView),
persistenceMethod, persistentCookieExpiryDateTime);
}
);
}
// save state when search id done
searchPanel.SearchButtonClicked += new EventHandler(
delegate( object sender, EventArgs e )
{
GridViewSearchPanelState controlState = new GridViewSearchPanelState( gridView, searchPanel );
SaveGridViewSearchPanelState( controlState, GetUniqueGridViewName( gridView ),
persistenceMethod, persistentCookieExpiryDateTime );
}
);
// save state when reset is done
searchPanel.ResetButtonClicked += new EventHandler(
delegate( object sender, EventArgs e )
{
GridViewSearchPanelState controlState = new GridViewSearchPanelState( gridView, searchPanel );
SaveGridViewSearchPanelState(controlState, GetUniqueGridViewName(gridView),
persistenceMethod, persistentCookieExpiryDateTime);
}
);
}
}
/// <summary>
/// Handles the state of the GridViewSearchPanel
/// </summary>
/// <param name="searchPanel">The search panel.</param>
/// <param name="persistentCookieExpiryDateTime">The date and time the persistent cookie expires.</param>
public static void HandleGridViewSearchPanelState( GridViewSearchPanel searchPanel, DateTime persistentCookieExpiryDateTime )
{
HandleGridViewSearchPanelState( searchPanel, null, PersistenceMethod.PersistentCookie, persistentCookieExpiryDateTime );
}
/// <summary>
/// Handles the state of the GridViewSearchPanel
/// </summary>
/// <param name="searchPanel">The search panel.</param>
public static void HandleGridViewSearchPanelState( GridViewSearchPanel searchPanel )
{
HandleGridViewSearchPanelState( searchPanel, PersistenceMethod.Session );
}
/// <summary>
/// Restores the state of the grid view and grid view search panel.
/// </summary>
/// <param name="gridView">The grid view.</param>
/// <param name="searchPanel">The search panel.</param>
public void RestoreState( ref GridView gridView, ref GridViewSearchPanel searchPanel )
{
gridView.PageIndex = this.PageIndex;
gridView.PageSize = this.PageSize;
searchPanel.SearchFieldName = this.SearchFieldName;
searchPanel.SearchKeyword = this.SearchKeyword;
searchPanel.SearchOperator = this.SearchOperator;
searchPanel.Filter = this.Filter;
if (!string.IsNullOrEmpty(this.SortExpression))
{
gridView.Sort(this.SortExpression, this.SortDirection);
}
}
/// <summary>
/// Saves the state of the grid view and grid view search panel.
/// </summary>
/// <param name="gridView">The grid view.</param>
/// <param name="searchPanel">The search panel.</param>
public void SaveState( GridView gridView, GridViewSearchPanel searchPanel )
{
// Grid view values
this.PageIndex = gridView.PageIndex;
this.PageSize = gridView.PageSize;
this.SortExpression = gridView.SortExpression;
this.SortDirection = gridView.SortDirection;
this.SearchFieldName = searchPanel.SearchFieldName;
this.SearchOperator = searchPanel.SearchOperator;
this.SearchKeyword = searchPanel.SearchKeyword;
this.Filter = searchPanel.Filter;
searchPanel.DataBind();
}
/// <summary>
/// Initializes a new instance of the <see cref="T:GridViewSearchPanelState"/> class.
/// </summary>
/// <param name="gridView">The grid view.</param>
/// <param name="searchPanel">The search panel.</param>
public GridViewSearchPanelState( GridView gridView, GridViewSearchPanel searchPanel )
{
SaveState( gridView, searchPanel );
}
