ASP.NET Master page DefaultButton override

Question

I have a master page with a form element and the defaultbutton attribute set to a server-side ImageButton. On one of my pages I want to "override" the masterpage defaultbutton attribute by setting the Forms DefaultButton in the Page_Load event. i.e On mater page: .... On the page Page_Load event that "override" the master page attribute: this.Form.DefaultButton = this.ibRecalc.ID; It errors with : The DefaultButton of 'form1' must be the ID of a control of type IButtonControl I am using image buttons which implements IButtonControl Any ideas of what I might be doing wrong or a different way to approach the problem? Thanks JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

Use UniqueId. Since you can have multiple server controls with the same server id, ie, in a GridView, the framework needs to the unique id to match up to. this.Form.DefaultButton = this.ibRecalc.UniqueID;