VB.NET中的构造函数值 [英] Constructor values in VB.NET

问题描述

这两行是一种形式..





这两行


我尝试过：



i尝试传递按钮点击



drawfencec是一个函数，而FrmGoogleMap是一个类

行fParallelLines1和fParallelLines2这些行我想以另一种形式传递..这些行在表单上绘制另外两行。因为我无法传递整个代码我只是粘贴特定的部分..现在我想如何通过构造函数在按钮单击事件上传递这两行

these two lines are in one form ..


these two lines

What I have tried:

i try to pass on button click

drawfencec is a function and FrmGoogleMap is the class
the lines fParallelLines1 and fParallelLines2 these lines i want to pass in another form .. these lines draw another two lines on form . as i cannot pass whole code i just paste specific part .. now i want to that how to pass these two line on another through constructor on button click event

推荐答案

创建FrmGoogleMap类的构造函数，它带有两个参数：

Create a constructor for the FrmGoogleMap class which takes two parameters:

Public Class FrmGoogleMap 
    Private fParallelLines1 As List(Of PointLatLng)
    Private fParallelLines2 As List(Of PointLatLng)
    Public Sub New(ByVal pl1 As List(Of PointLatLng), ByVal pl2 As List(Of PointLatLng))
        fParallelLines1 = pl1
        fParallelLines2 = pl2
    End Sub

然后在创建实例时传递它们：

Then just pass them when you create the instance:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim f As New FrmGoogleMap(fParallelLines1, fParallelLines2) 
    f.Show
    f.DrawFence()
End Sub

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