Bar.DockStyle Property

Gets or sets the Bar dock style.

Namespace: DevExpress.XtraBars

Assembly: DevExpress.XtraBars.v24.1.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#

[DefaultValue(BarDockStyle.None)]
[XtraSerializableProperty]
public BarDockStyle DockStyle { get; set; }

VB.NET

<DefaultValue(BarDockStyle.None)>
<XtraSerializableProperty>
Public Property DockStyle As BarDockStyle

Property Value

Type	Default	Description
BarDockStyle	None	The Bar dock style.

Available values:

Name	Description
None	A bar object is floating.
Left	A bar object is docked to the left side of the owner control.
Top	A bar object is docked to the top of the owner control.
Right	A bar object is docked to the right side of the owner control.
Bottom	A bar object is docked to the bottom of the owner control.
Standalone	Identifies a StandaloneBarDockControl control.

Remarks

The DockStyle property determines how a Bar is docked. For instance, the BarDockStyle.Left dock style docks the bar to the left container form’s border. Property value must be a member of the BarDockStyle enumeration.

Example

The following code shows how to create bars and bar items in code.

In the example two bars are created - a main menu (a bar that is stretched to match the form’s width), and a regular bar. The main menu will contain three sub-menus (File, Edit and View), each having its own bar items. The second bar will display the Output button, which is also available via the View submenu of the first bar:

Bars are added to the BarManager.Bars collection. Bar items are added to bars via the Bar.AddItem and Bar.AddItems methods.

To avoid flickering while adding and customizing bars and bar items, the code that performs the customization is enclosed with the BarManager.BeginUpdate and BarManager.EndUpdate method calls.

To respond to clicking bar items, the BarManager.ItemClick event is handled.

C#

using DevExpress.XtraBars;

private void Form1_Load(object sender, EventArgs e) {
    BarManager barManager = new BarManager();
    barManager.Form = this;
    // Prevent excessive updates while adding and customizing bars and bar items.
    // The BeginUpdate must match the EndUpdate method.
    barManager.BeginUpdate();
    // Create two bars and dock them to the top of the form.
    // Bar1 - is a main menu, which is stretched to match the form's width.
    // Bar2 - is a regular bar.
    Bar bar1 = new Bar(barManager, "My MainMenu");
    Bar bar2 = new Bar(barManager, "My Bar");
    bar1.DockStyle = BarDockStyle.Top;
    bar2.DockStyle = BarDockStyle.Top;
    // Position the bar1 above the bar2
    bar1.DockRow = 0;
    // The bar1 must act as the main menu.
    barManager.MainMenu = bar1;

    // Create bar items for the bar1 and bar2
    BarSubItem subMenuFile = new BarSubItem(barManager, "File");
    BarSubItem subMenuEdit = new BarSubItem(barManager, "Edit");
    BarSubItem subMenuView = new BarSubItem(barManager, "View");

    BarButtonItem buttonOpen = new BarButtonItem(barManager, "Open");
    BarButtonItem buttonExit = new BarButtonItem(barManager, "Exit");
    BarButtonItem buttonCopy = new BarButtonItem(barManager, "Copy");
    BarButtonItem buttonCut = new BarButtonItem(barManager, "Cut");
    BarButtonItem buttonViewOutput = new BarButtonItem(barManager, "Output");

    subMenuFile.AddItems(new BarItem[] { buttonOpen, buttonExit});
    subMenuEdit.AddItems(new BarItem[] { buttonCopy, buttonCut});
    subMenuView.AddItem(buttonViewOutput);

    //Add the sub-menus to the bar1
    bar1.AddItems(new BarItem[] {subMenuFile, subMenuEdit, subMenuView });

    // Add the buttonViewOutput to the bar2.
    bar2.AddItem(buttonViewOutput);

    // A handler to process clicks on bar items
    barManager.ItemClick += new ItemClickEventHandler(barManager_ItemClick);     

    barManager.EndUpdate();
}

void barManager_ItemClick(object sender, ItemClickEventArgs e) {
    BarSubItem subMenu = e.Item as BarSubItem;
    if (subMenu != null) return;
    MessageBox.Show("Item '" + e.Item.Caption + "' has been clicked");
}

VB.NET

Imports DevExpress.XtraBars

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles MyBase.Load
    Dim barManager As BarManager = New BarManager()
    barManager.Form = Me
    ' Prevent excessive updates while adding and customizing bars and bar items.
    ' The BeginUpdate must match the EndUpdate method.
    barManager.BeginUpdate()
    ' Create two bars and dock them to the top of the form.
    ' Bar1 - is a main menu, which is stretched to match the form's width.
    ' Bar2 - is a regular bar.
    Dim bar1 As Bar = New Bar(barManager, "My MainMenu")
    Dim bar2 As Bar = New Bar(barManager, "My Bar")
    bar1.DockStyle = BarDockStyle.Top
    bar2.DockStyle = BarDockStyle.Top
    ' Position the bar1 above the bar2
    bar1.DockRow = 0
    ' The bar1 must act as the main menu.
    barManager.MainMenu = bar1

    ' Create bar items for the bar1 and bar2
    Dim subMenuFile As BarSubItem = New BarSubItem(barManager, "File")
    Dim subMenuEdit As BarSubItem = New BarSubItem(barManager, "Edit")
    Dim subMenuView As BarSubItem = New BarSubItem(barManager, "View")

    Dim buttonOpen As BarButtonItem = New BarButtonItem(barManager, "Open")
    Dim buttonExit As BarButtonItem = New BarButtonItem(barManager, "Exit")
    Dim buttonCopy As BarButtonItem = New BarButtonItem(barManager, "Copy")
    Dim buttonCut As BarButtonItem = New BarButtonItem(barManager, "Cut")
    Dim buttonViewOutput As BarButtonItem = New BarButtonItem(barManager, "Output")

    subMenuFile.AddItems(New BarItem() { buttonOpen, buttonExit})
    subMenuEdit.AddItems(New BarItem() { buttonCopy, buttonCut})
    subMenuView.AddItem(buttonViewOutput)

    'Add the sub-menus to the bar1
    bar1.AddItems(New BarItem() {subMenuFile, subMenuEdit, subMenuView })

    ' Add the buttonViewOutput to the bar2.
    bar2.AddItem(buttonViewOutput)

    ' A handler to process clicks on bar items
    AddHandler barManager.ItemClick, AddressOf barManager_ItemClick

    barManager.EndUpdate()
End Sub

Private Sub barManager_ItemClick(ByVal sender As Object, ByVal e As ItemClickEventArgs)
    Dim subMenu As BarSubItem = TryCast(e.Item, BarSubItem)
    If Not subMenu Is Nothing Then Return
    MessageBox.Show("Item '" & e.Item.Caption & "' has been clicked")
End Sub