创建鼠标事件参数 [英] create mouse event args

问题描述

我有以下代码.在该代码中，我在突出显示的地方遇到了问题.在突出显示的代码'e'中.问题如下

"委托 TreeNodeAdvMouseEventArgs需要表达式或lambda表达式的地址作为其构造函数的唯一参数

"delegate TreeNodeAdvMouseEventArgs requires an address of expression or lambda expression as the only argument to its constructor

我声明了   TreeNodeAdvMouseEventArgs 作为公共委托子TreeNodeAdvMouseEventArgs(ByVal e作为MouseEventArgs)

I declare the  TreeNodeAdvMouseEventArgs  as Public Delegate Sub TreeNodeAdvMouseEventArgs(ByVal e As MouseEventArgs)

我无法解决此问题.请帮助我，并向我解释代码中我做错了什么.

i am not able solve this. please help me and explain me what i did wrong in the code.

Private Function CreateMouseArgs(ByVal e As MouseEventArgs) As TreeNodeAdvMouseEventArgs
            Dim args As New TreeNodeAdvMouseEventArgs(e) With { _
                .ViewLocation = New Point((e.X + Me.OffsetX), ((e.Y + Me._rowLayout.GetRowBounds(Me.FirstVisibleRow).Y) - Me.ColumnHeaderHeight)), _
                .ModifierKeys = Control.ModifierKeys, _
                .Node = Me.GetNodeAt(e.Location) _
            }

            Dim nodeControlInfoAt As NodeControlInfo = Me.GetNodeControlInfoAt(args.Node, e.Location)
            args.ControlBounds = nodeControlInfoAt.Bounds
            args.Control = nodeControlInfoAt.Control
            Return args
        End Function

推荐答案

也许您可以描述为什么需要此代码.编码的目的不是创建最不可维护的代码，而是相反.您的解决方案看起来像是第一个解决方案，也许还有更多可维护的解决方案.

Maybe can you describe why you need this code. The goal of coding is not creating the most not maintainable possible code, but the opposite. Your solution looks like it does the first, maybe there are more maintainable solutions.

VB不是C#，它会在后台自动创建委托.

VB is not C#, it has an automatic creation of delegates behind the scene.

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