Hi,

 private void ultraMonthViewSingle1_Click(object sender, EventArgs e)
        {

           // Here i need to identify if the user clicked place is a day slot. because when every the user click in scroll button also this event fired and its //going to AddDayNotes method. i need to restrict this operation in user click

 if (<some Identifycation >)

{

AddDayNotes();

}

           
        }

You can use the GetDayFromPoint method, and if the return is null, you know that the cursor is no positioned over a day. You can use the MouseClick event instead of the Click event so that you get the client coordinates without having to get the cursor position and convert.