I have 1 solution (which is deploying as SandBox Solution).
I have one Element.xml file which has CustomAction button for Ribbon. Now in this I want to to add UserControl in this. So I have written,
"Control Id="ControlPageHeader" Sequence="400" ControlSrc="~/MyModuleName/MyTestFolder/MyUserControl.ascx"
When I create the package & Upload the solution on my site, Button is displayed in the Site, but when I click on the button, it does not take/do any action.
(Image is not displaying on the button also).
I don't know what is the problem ? Either the reference or path ?
Please help me for this.