Sharepoint 2013 CustomAction CustomWebControl

Question

I'm little confused with the creation of a custom WebControl for a CustomAction.

I was following this tutorial : https://weblogs.asp.net/jan/creating-hierarchical-menus-with-a-customaction-in-sharepoint, but in my case nothing happens.

I guess it is because I don't how to create the class which inherits from WebControl. How do I have to create this class? I have to click on "Add a item", then "User Control (Farm Solution only"? Or I have to click just on "Class" classic? But for the last solution, how can I add this class to my assembly?

Here the code :

Elements.xml

<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
  <CustomAction
    Id="Essai"
    Location="Microsoft.SharePoint.StandardMenu"
    GroupId="SiteActions"
    ControlAssembly="XXX"
    ControlClass="XXX.Web.CustomisationSiteActions">
  </CustomAction>
</Elements>

In CustomisationSiteActions.cs :

using Microsoft.SharePoint.WebControls;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web.UI.WebControls;

namespace XXX.Web
{
    public class CustomisationSiteActions : WebControl
    {

        // Add a the new "lol" menu item
        protected override void CreateChildControls()
        {
            MenuItemTemplate item = new MenuItemTemplate();
            item.Text = "lol";
            item.Description = "lol";
            item.Sequence = 2005;

            this.Controls.Add(item);
        }  
    }
}

Thanks for your help.

Answer 1

Instead of changing the deployment target, add a safe control entry for your namespace of the control rendering the menu item.

Answer 2

I do not do back-end dev

From the client, run as a Snippet in ChromeDEV tools, it is:

var ctx = new SP.ClientContext.get_current();
var web = ctx.get_web();
var actions = web.get_userCustomActions();
ctx.load(actions);
ctx.executeQueryAsync(function () {
        var userCA = actions.add();
        userCA.set_location('Microsoft.SharePoint.StandardMenu');
        userCA.set_group("SiteActions");
        userCA.set_sequence(922);
        userCA.set_description('MyDescription');
        userCA.set_title('MyTitle');
        userCA.set_url('MyUrl');
        userCA.update();
        ctx.executeQueryAsync(function () {
            console.log("Site action link added");
        }, function (e) {
            console.error(e)
        });
});

Answer 3

I found the solution, it didnt't find the assembly. I had to change the value of "DeploymentTarget" to "WebApplication" in my Package.Template.xml.

Thanks for your help.