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GridViewFilterOptions.cs
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GridViewFilterOptions.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.Utils.Menu;
using DevExpress.XtraGrid.Menu;
using DevExpress.XtraGrid.Columns;
using DevExpress.XtraGrid.Views.Base;
namespace FilterPanelCustomBenavior
{
class GridViewFilterPanelHandler
{
GridView ViewSender;
bool showNewItemsOnlyInColumnPopupMenu_;
public GridViewFilterPanelHandler(GridView currentGridView)
{
ViewSender = currentGridView;
if (ViewSender != null)
{
ViewSender.OptionsView.ShowFilterPanelMode = ShowFilterPanelMode.Never;
}
showNewItemsOnlyInColumnPopupMenu_ = true;
}
public bool ShowNewItemsOnlyInColumnPopupMenu
{
set { showNewItemsOnlyInColumnPopupMenu_ = value; }
}
DXMenuCheckItem CreateFilterMenuItem(string caption)
{
DXMenuCheckItem item = new DXMenuCheckItem(caption, false, null, new EventHandler(OnFilterPanelItemClick));
return item;
}
// Menu item click handler.
void OnFilterPanelItemClick(object sender, EventArgs e)
{
ViewSender.OptionsView.ShowFilterPanelMode = ViewSender.OptionsView.ShowFilterPanelMode == ShowFilterPanelMode.ShowAlways ? ShowFilterPanelMode.Never : ShowFilterPanelMode.ShowAlways;
}
void ViewSender_PopupMenuShowing(object sender, PopupMenuShowingEventArgs e)
{
if (showNewItemsOnlyInColumnPopupMenu_)
{
if (e.MenuType == GridMenuType.Column)
e.Menu.Items.Add(CreateFilterMenuItem(GetCurrentCaptionForMenuItem()));
}
else
{
if (e.Menu != null)
{
e.Menu.Items.Add(CreateFilterMenuItem(GetCurrentCaptionForMenuItem()));
}
}
}
string GetCurrentCaptionForMenuItem()
{
if (ViewSender.OptionsView.ShowFilterPanelMode == ShowFilterPanelMode.Never)
return "Show filter panel";
else
return "Hide filter panel";
}
public void HandleViewPopuMenuShowing(bool handlePopuMenuShowing)
{
if (handlePopuMenuShowing)
ViewSender.PopupMenuShowing += new PopupMenuShowingEventHandler(ViewSender_PopupMenuShowing);
else
ViewSender.PopupMenuShowing -= new PopupMenuShowingEventHandler(ViewSender_PopupMenuShowing);
}
}
}