windowsforms-devexpress-dot-xtrabars-dot-ribbon-dot-ribboncontrol-7b9fcfa2.md
Gets the collection of custom page categories, which allows contextual tab pages to be added and manipulated.
Namespace : DevExpress.XtraBars.Ribbon
Assembly : DevExpress.XtraBars.v25.2.dll
NuGet Package : DevExpress.Win.Navigation
[Browsable(false)]
[XtraSerializableProperty(false, true, false)]
public RibbonPageCategoryCollection PageCategories { get; }
<Browsable(False)>
<XtraSerializableProperty(False, True, False)>
Public ReadOnly Property PageCategories As RibbonPageCategoryCollection
| Type | Description |
|---|---|
| RibbonPageCategoryCollection |
A RibbonPageCategoryCollection object containing the collection of custom page categories.
|
The PageCategories object represents a collection of custom page categories.
Custom categories allow contextual tab pages to be implemented. To create a contextual tab page, first create a custom category (a RibbonPageCategory object), add it to the PageCategories collection. Then add a Ribbon page, that will represent the contextual tab page, to the category’s RibbonPageCategory.Pages collection.
To get unassigned pages (pages that belong to the default page category), use the RibbonPageCategory.Pages property of the RibbonControl.DefaultPageCategory object, or the RibbonControl.Pages collection.
See the Categories and Contextual Tabs topic to learn more.
The following example creates the DevExpress WinForms Ribbon Control with two contextual tabs/pages. The svgImageCollection1 was added and populated with SVG images at design time.
using System.Drawing;
using DevExpress.XtraBars;
using DevExpress.XtraBars.Ribbon;
using DevExpress.XtraEditors;
namespace DXApplication19
{
public partial class Form1 : XtraForm
{
public Form1()
{
InitializeComponent();
// Create a RibbonControl.
RibbonControl Ribbon = new RibbonControl();
// Create the 'Home' page.
RibbonPage pageHome = new RibbonPage("Home");
Ribbon.Pages.Add(pageHome);
// Create the 'Selection' page category.
RibbonPageCategory catSelection = new RibbonPageCategory("Selection", Color.Orange, false);
Ribbon.PageCategories.Add(catSelection);
// Create 'Format' an 'Clipboard' contextual pages/tabs in the 'Selection' page category.
RibbonPage contextPageFormat = new RibbonPage("Format");
RibbonPage contextPageClipboard = new RibbonPage("Clipboard");
catSelection.Pages.AddRange(new RibbonPage[] { contextPageFormat, contextPageClipboard });
// Add the 'Edit' group with two bar items to the 'Format' page.
RibbonPageGroup groupEdit = new RibbonPageGroup("Edit") { AllowTextClipping = false };
// Add two bar items to the 'Edit' group.
BarButtonItem itemCopy = new BarButtonItem(Ribbon.Manager, "Copy"){ RibbonStyle = RibbonItemStyles.Large};
itemCopy.ImageOptions.SvgImage = svgImageCollection1["copy"];
BarButtonItem itemCut = new BarButtonItem(Ribbon.Manager, "Cut") { RibbonStyle = RibbonItemStyles.Large };
itemCut.ImageOptions.SvgImage = svgImageCollection1["cut"];
groupEdit.ItemLinks.AddRange(new BarItem[] { itemCopy, itemCut });
contextPageFormat.Groups.Add(groupEdit);
Ribbon.ItemClick += new ItemClickEventHandler(Ribbon_ItemClick);
// Add the RibbonControl to the form.
this.Controls.Add(Ribbon);
/* Contextual pages are hidden by default.
* The following line displays the 'Selection' page category.
*/
catSelection.Visible = true;
// Activate the 'Format' contextual page/tab.
Ribbon.SelectedPage = catSelection.Pages["Format"];
}
void Ribbon_ItemClick(object sender, ItemClickEventArgs e)
{
// Add your code to handle clicks on bar items.
}
}
}
Imports System.Drawing
Imports DevExpress.XtraBars
Imports DevExpress.XtraBars.Ribbon
Imports DevExpress.XtraEditors
Namespace DXApplication19
Partial Public Class Form1
Inherits XtraForm
Public Sub New()
InitializeComponent()
' Create a RibbonControl.
Dim Ribbon As New RibbonControl()
' Create the 'Home' page.
Dim pageHome As New RibbonPage("Home")
Ribbon.Pages.Add(pageHome)
' Create the 'Selection' page category.
Dim catSelection As New RibbonPageCategory("Selection", Color.Orange, False)
Ribbon.PageCategories.Add(catSelection)
' Create 'Format' an 'Clipboard' contextual pages/tabs in the 'Selection' page category.
Dim contextPageFormat As New RibbonPage("Format")
Dim contextPageClipboard As New RibbonPage("Clipboard")
catSelection.Pages.AddRange(New RibbonPage() { contextPageFormat, contextPageClipboard })
' Add the 'Edit' group with two bar items to the 'Format' page.
Dim groupEdit As New RibbonPageGroup("Edit") With {.AllowTextClipping = False}
' Add two bar items to the 'Edit' group.
Dim itemCopy As New BarButtonItem(Ribbon.Manager, "Copy") With {.RibbonStyle = RibbonItemStyles.Large}
itemCopy.ImageOptions.SvgImage = svgImageCollection1("copy")
Dim itemCut As New BarButtonItem(Ribbon.Manager, "Cut") With {.RibbonStyle = RibbonItemStyles.Large}
itemCut.ImageOptions.SvgImage = svgImageCollection1("cut")
groupEdit.ItemLinks.AddRange(New BarItem() { itemCopy, itemCut })
contextPageFormat.Groups.Add(groupEdit)
AddHandler Ribbon.ItemClick, AddressOf Ribbon_ItemClick
' Add the RibbonControl to the form.
Me.Controls.Add(Ribbon)
' Contextual pages are hidden by default.
' * The following line displays the 'Selection' page category.
'
catSelection.Visible = True
' Activate the 'Format' contextual page/tab.
Ribbon.SelectedPage = catSelection.Pages("Format")
End Sub
Private Sub Ribbon_ItemClick(ByVal sender As Object, ByVal e As ItemClickEventArgs)
' Add your code to handle clicks on bar items.
End Sub
End Class
End Namespace
See Also