How do I provide keyboard shortcuts for certain XAF Actions in Web UI?

Hello Nitz,

There are currently no built-in shortcuts in XAF Web UI, but it is not that difficult to implement them using the standard HTML and JavaScript approaches linked to the corresponding XAF's API.
I have made a quick example based on my previous article on how to add some client-side functionality to the XAF's form (KA18958):

Visual Basic
Imports Microsoft.VisualBasic  
Imports System  
Imports DevExpress.ExpressApp  
Imports DevExpress.ExpressApp.SystemModule  
Imports DevExpress.ExpressApp.Web  
Imports DevExpress.ExpressApp.Web.Templates  
Imports DevExpress.ExpressApp.Actions  

Namespace MainDemo.Module.Web.Controllers  
    Public Class WebShortcutsWindowController  
        Inherits WindowController  
        Implements IXafCallbackHandler  

        Public Sub New()  
            TargetWindowType = WindowType.Main  
        End Sub  
        Protected Overrides Sub OnActivated()  
            MyBase.OnActivated()  
            AddHandler Frame.ViewChanged, AddressOf Frame_ViewChanged  
            AddHandler CType(Window, WebWindow).PagePreRender, AddressOf CurrentRequestWindow_PagePreRender  
        End Sub  
        Protected Overrides Sub OnDeactivated()  
            RemoveHandler CType(Window, WebWindow).PagePreRender, AddressOf CurrentRequestWindow_PagePreRender  
            RemoveHandler Frame.ViewChanged, AddressOf Frame_ViewChanged  
            MyBase.OnDeactivated()  
        End Sub  
        Private Sub Frame_ViewChanged(ByVal sender As Object, ByVal e As ViewChangedEventArgs)  
            If (e.SourceFrame IsNot Nothing) AndAlso (e.SourceFrame.View IsNot Nothing) Then  
                AddHandler e.SourceFrame.View.ControlsCreated, AddressOf View_ControlsCreated  
            End If  
        End Sub  
        Private Sub View_ControlsCreated(ByVal sender As Object, ByVal e As EventArgs)  
            RegisterXafCallackHandler()  
        End Sub  
        Private Sub RegisterXafCallackHandler()  
            If XafCallbackManager IsNot Nothing Then  
                XafCallbackManager.RegisterHandler("T171941", Me)  
            End If  
        End Sub  
        Protected ReadOnly Property XafCallbackManager() As XafCallbackManager  
            Get  
                Return If(WebWindow.CurrentRequestPage IsNot Nothing, DirectCast(WebWindow.CurrentRequestPage, ICallbackManagerHolder).CallbackManager, Nothing)  
            End Get  
        End Property  
        Private Sub CurrentRequestWindow_PagePreRender(ByVal sender As Object, ByVal e As EventArgs)  
            Dim window As WebWindow = DirectCast(sender, WebWindow)  
            Dim script As String = If(IsSuitableView(), "window.onkeydown = function(e) {" & ControlChars.CrLf & _  
"                                                   var key = e.keyCode ? e.keyCode : e.which;" & ControlChars.CrLf & _  
"                                                   if (key == 13 && e.ctrlKey) { //Control+Enter" & ControlChars.CrLf & _  
"                                                       RaiseXafCallback(globalCallbackControl, 'T171941', 'SaveAction', '', false);" & ControlChars.CrLf & _  
"                                                   }" & ControlChars.CrLf & _  
"                                                };", "window.onkeydown=undefined;")  
            window.RegisterStartupScript(Me.GetType().FullName, script)  
        End Sub  
        Public Sub ProcessAction(ByVal parameter As String)  
            If IsSuitableView() AndAlso (Frame IsNot Nothing) Then  
                Dim saveAction As SimpleAction = Frame.GetController(Of ModificationsController)().SaveAction  
                If parameter = "SaveAction" AndAlso saveAction.Enabled AndAlso saveAction.Active Then  
                    saveAction.DoExecute()  
                End If  
            End If  
        End Sub  
        Protected Overridable Function IsSuitableView() As Boolean  
            Return Frame.View IsNot Nothing AndAlso Frame.View.IsRoot AndAlso Not(TypeOf Frame.View Is ListView) AndAlso Not(TypeOf Frame Is NestedFrame) AndAlso Not(TypeOf Frame Is PopupWindow)  
        End Function  
    End Class  
End Namespace  

C#
using System;  
using DevExpress.ExpressApp;  
using DevExpress.ExpressApp.SystemModule;  
using DevExpress.ExpressApp.Web;  
using DevExpress.ExpressApp.Web.Templates;  
using DevExpress.ExpressApp.Actions;  

namespace MainDemo.Module.Web.Controllers {  
    public class WebShortcutsWindowController : WindowController, IXafCallbackHandler {  
        public WebShortcutsWindowController() {  
            TargetWindowType = WindowType.Main;  
        }  
        protected override void OnActivated() {  
            base.OnActivated();  
            Frame.ViewChanged += Frame_ViewChanged;  
            ((WebWindow)Window).PagePreRender += CurrentRequestWindow_PagePreRender;  
        }  
        protected override void OnDeactivated() {  
            ((WebWindow)Window).PagePreRender -= CurrentRequestWindow_PagePreRender;  
            Frame.ViewChanged -= Frame_ViewChanged;  
            base.OnDeactivated();  
        }  
        void Frame_ViewChanged(object sender, ViewChangedEventArgs e) {  
            if((e.SourceFrame != null) && (e.SourceFrame.View != null)) {  
                e.SourceFrame.View.ControlsCreated += View_ControlsCreated;  
            }  
        }  
        void View_ControlsCreated(object sender, EventArgs e) {  
            RegisterXafCallackHandler();  
        }  
        private void RegisterXafCallackHandler() {  
            if(XafCallbackManager != null) {  
                XafCallbackManager.RegisterHandler("T171941", this);  
            }  
        }  
        protected XafCallbackManager XafCallbackManager {  
            get {  
                return WebWindow.CurrentRequestPage != null ? ((ICallbackManagerHolder)WebWindow.CurrentRequestPage).CallbackManager : null;  
            }  
        }  
        void CurrentRequestWindow_PagePreRender(object sender, EventArgs e) {  
            WebWindow window = (WebWindow)sender;  
            string script = IsSuitableView() ? @"window.onkeydown = function(e) {  
                                                   var key = e.keyCode ? e.keyCode : e.which;  
                                                   if (key == 13 && e.ctrlKey) { //Control+Enter  
                                                       RaiseXafCallback(globalCallbackControl, 'T171941', 'SaveAction', '', false);  
                                                   }  
                                                };" : "window.onkeydown=undefined;";  
            window.RegisterStartupScript(GetType().FullName, script);  
        }  
        public void ProcessAction(string parameter) {  
            if(IsSuitableView() && (Frame != null)) {  
                SimpleAction saveAction = Frame.GetController<ModificationsController>().SaveAction;  
                if(parameter == "SaveAction" && saveAction.Enabled && saveAction.Active) {  
                    saveAction.DoExecute();  
                }  
            }  
        }  
        protected virtual bool IsSuitableView() {  
            return Frame.View != null && Frame.View.IsRoot && !(Frame.View is ListView) && !(Frame is NestedFrame) && !(Frame is PopupWindow);  
        }  
    }  
}  

This is not a complete solution, and you need to modify and test it further according to your business needs. See also the eXpressApp Framework > Concepts > Extend Functionality > Built-in Controllers and Actions and How to execute Actions in code articles for more information on how to access other XAF Controllers and execute their Actions in code.