在Racket的editor<%>类中，我可以覆盖on-default-event，以确定是否单击了鼠标右键。现在我想要一个右键菜单来显示剪切/复制/粘贴选项。这可能与 If li Is Nothing Then
li = (From e In Employees _
Group Join j In Jobs On e.Jobcode Equals j.JobCode Into ej = Group _
From j In ej.DefaultIfEmpty _
Where (SqlMethods.Like(e.Last_Name, lastName & "%") Or j.JobCode.Contains(jobCode)) _
Order By e.Last_Name, e.First_Name_Used _
Select ID = e.EmployeeID, RACFID = e.Racf_id, _
Name = e.Last_Name & ", " & e.First_Name & " " & If(e.Middle_Name IsNot Nothing, e.Middle_Name.Substring(0, 1), ""), _
Contract = e.Contract, _
Title = j.Title, Gang = j.Gang, _
SupvName = (From e1 In Employees _
Join j1 In Jobs On e1.Jobcode Equals j1.JobCode _
Where j1.JobCode = j.NextJobCode _
Select sup = e1.Last_Name & ", " & e1.First_Name & " " & If(e1.Middle_Name IsNot Nothing, e1.Middle_Name.Substring(0, 1), "")).First.ToString())
End If
Return li
有关吗？如果可能的话，我宁愿不直接将其添加到editor<%>，因为我打算将frame%用作剪辑。
答案 0 :(得分：0)
我在Bracket中有一个示例，右键单击数学框（可以输入数学表达式的剪辑）显示一个小菜单。
https://github.com/soegaard/bracket/blob/master/gui/racket-cas.rkt#L320