How to invoke server side code from Ribbon

Question

I want to create a Button in my Ribbon which modifies some fields in my items.. In details I want to select more than one element and select my "link" button and make the elements be "linked" by an integer field populated with the same value.

I already have other ribbon custom button but for those it was easy to work only with Javascript. Can anybody suggest me how to do this thing?

I read online someone suggest to create a custom WebControl invoked by "postback" to react to event... There is any other way or a good tutorial?

Thank you very much!

Answer 1

Use __doPostback method on the client:

__doPostback('myPostBack','');

Then, on server you should have something like this:

const string myPostBackId = "myPostBack";

public override CreateChildControls()
{
    // ...

    if (this.Page.Request["__EVENTTARGET"] == myPostbackId)
    {
        string textBoxValue = this.Page.Request["__EVENTARGUMENT"];
        // do whatever you need with textBoxValue
    }

    // ...
}

Also, I have two working examples for my Fluent Ribbon API opensource project, of how to work with postbacks. I think, exploring these examples could help, even if you don't intend to use Fluent Ribbon API. Here they are:

1. Simple example from the project documentation site
2. Article, which explains how to use Ribbon ToggleButton in conjunction with UpdatePanel to create multiview pages

Answer 2

You could also create an application page which you pass the GUIDs of the selected items via a JavaScript redirect. currentsite/_layouts/AppPage?GUIDS=guid1,guid2&ReturnURL=/Pages/currentpage.

Have your code complete the request then redirect to the list view via the ReturnUrl paramater.

Answer 3

Apart from invoking server side code from Ribbon using _dopostback, there are other ways of doing it as well as described here on my blog http://sharepointnadeem.blogspot.in/2012/07/invoke-server-side-code-on-sharepoint_9855.html

Answer 4

Apart the suggestion wrote from Andrey and Anders I suggest to you another solution. By javascript call a wcf to do the work do you need.