Vb.net 变量不能被嵌入

Vb.net 变量不能被嵌入,vb.net,registry,contextmenu,Vb.net,Registry,Contextmenu,我正在尝试编写一个程序,将给定的应用程序(已经完成)和自定义URL添加到桌面上的上下文菜单中 当我运行程序并选择custom时,输入所需的参数,它会创建所需的Launcher批处理脚本注册表项,但没有添加定义名称的变量givenName,文件名为“.bat”,或者没有生成第一个键(需要名称) 需要保存在批处理脚本中以启动所选URL的URL也是如此 这是发生这种情况的表单的代码: Public Class FormCustom Private Sub Button1_Click(sende

我正在尝试编写一个程序,将给定的应用程序(已经完成)和自定义URL添加到桌面上的上下文菜单中

当我运行程序并选择custom时,输入所需的参数,它会创建所需的Launcher批处理脚本注册表项,但没有添加定义名称的变量givenName,文件名为“.bat”,或者没有生成第一个键(需要名称)

需要保存在批处理脚本中以启动所选URL的URL也是如此

这是发生这种情况的表单的代码:

Public Class FormCustom
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Me.Hide()

    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        Dim DirExists As Boolean = Nothing
        If My.Computer.FileSystem.DirectoryExists("C:\ShortCut") Then
            DirExists = True
        End If
        If DirExists = False Then
            My.Computer.FileSystem.CreateDirectory("C:\ShortCut")
        End If
        Dim Position As String = Nothing
        If RadioButton1.Checked Then
            Position = "Middle"
        Else
            If RadioButton2.Checked Then
                Position = "Bottom"
            End If
        End If
        Dim givenName As String = Nothing
        Dim givenURL As String = Nothing
        TextBox2.Text = givenURL
        TextBox1.Text = givenName
        Dim sb As New System.Text.StringBuilder
        sb.AppendLine("@echo off")
        sb.Append("start " + givenURL)
        IO.File.WriteAllText("C:\ShortCut\" + givenName + ".bat", sb.ToString())
        My.Computer.Registry.ClassesRoot.CreateSubKey("DesktopBackground\Shell\" + givenName)
        My.Computer.Registry.ClassesRoot.CreateSubKey("DesktopBackground\Shell\" + givenName + "\command")
        My.Computer.Registry.ClassesRoot.OpenSubKey("DesktopBackground\Shell\" + givenName, True).SetValue("(Default)", "@shell32.dll")
        My.Computer.Registry.ClassesRoot.OpenSubKey("DesktopBackground\Shell\" + givenName + "\command", True).SetValue("(Default)", "@shell32.dll")
        My.Computer.Registry.ClassesRoot.OpenSubKey("DesktopBackground\Shell\" + givenName, True).SetValue("icon", "explorer.exe")
        My.Computer.Registry.ClassesRoot.OpenSubKey("DesktopBackground\Shell\" + givenName, True).SetValue("Position", Position)
        My.Computer.Registry.ClassesRoot.OpenSubKey("DesktopBackground\Shell\" + givenName + "\command", True).SetValue("(Default)", "C:\ShortCut\" + givenName + ".bat")
    End Sub
End Class
我试着用“+”来添加变量,并且知道它为什么不接受它

[已解决]可在GitHub上获得:

这将文本框的文本设置为变量:

TextBox2.Text = givenURL
TextBox1.Text = givenName
你想要的是另一种方式:

givenURL = TextBox2.Text
givenName = TextBox1.Text
变量的赋值方式如下:

=
例如:

Dim MyString1 As String = "1"
Dim MyString2 As String = "2"
Dim MyString3 As String = "3"

MyString1 = "Hello!"       'Sets "MyString1" to "Hello!".
MyString3 = MyString2      'Sets "MyString3" to the value of "MyString2".
MyString2 = "This is text" 'Sets "MyString2" to "This is text"

MessageBox.Show(MyString1) 'Shows: Hello!
MessageBox.Show(MyString2) 'Shows: This is text
MessageBox.Show(MyString3) 'Shows: 2

"Oh hi!" = MyString3       'Syntax error.
My.Computer.Registry.ClassesRoot.OpenSubKey("DesktopBackground\Shell\" + givenName, True).SetValue("", "@shell32.dll")

编辑:

要设置
(默认值)
注册表项的值,您只需为值名称指定一个空字符串

例如:

Dim MyString1 As String = "1"
Dim MyString2 As String = "2"
Dim MyString3 As String = "3"

MyString1 = "Hello!"       'Sets "MyString1" to "Hello!".
MyString3 = MyString2      'Sets "MyString3" to the value of "MyString2".
MyString2 = "This is text" 'Sets "MyString2" to "This is text"

MessageBox.Show(MyString1) 'Shows: Hello!
MessageBox.Show(MyString2) 'Shows: This is text
MessageBox.Show(MyString3) 'Shows: 2

"Oh hi!" = MyString3       'Syntax error.
My.Computer.Registry.ClassesRoot.OpenSubKey("DesktopBackground\Shell\" + givenName, True).SetValue("", "@shell32.dll")
请注意,
SetValue
的第一个参数中没有文本:

.SetValue("", "@shell32.dll")
'         ^ Empty string.

编辑2:

正如您所知,您可以使用
ElseIf
关键字在
If
-语句中指定替代检查:

If RadioButton1.Checked Then
    Position = "Middle"
ElseIf RadioButton2.Checked Then
    Position = "Bottom"
End If
用法:

If condition1 Then
    'Code...
ElseIf condition2 Then
    'Code...
ElseIf condition3 Then
    'Code...
ElseIf condition... Then
    'Code...
End If

有关的更多信息。

很抱歉让您提出了一个新问题,但在看到代码之前,我不可能知道问题就这么简单。:)没问题,但我想我发现了另一件事,我应该先解决我没有解决,它解决了它,但批处理脚本没有保存在注册表项的默认位置,而是自己创建一个批处理脚本如果它在(默认)项中(德语:(标准)),那么它就没有问题,它会像charm@Max:很高兴我能帮忙!很抱歉给您带来不便;)。祝你的项目好运!