Visual Studio消息：文档项目没有代码范围的文件。（为PowerShell建造GUI）

发布于 2025-01-31 10:57:36 字数 2109 浏览 2 评论 0原文

在Visual Studio中，我创建了一个新的PowerShell脚本项目，以构建脚本的GUI。现在，Moreso了解它将如何工作的概念。

在GUI中，我想在文本框中输入文件名，然后在使用文本框中输入的文件名单击按钮时创建文件。

我命名了文本框和按钮（请参阅XML）。当我尝试为按钮添加单击事件处理程序时，我会在vs中获取此消息：文档项目没有代码范围的文件。在添加事件处理程序之前，添加代码范围文件和类定义。

我在这里缺少什么？（另外，我已经看到用户从VS中获取XML代码，并直接在PowerShell ISE/脚本中使用来开发GUI。这是否是使用Visual Studio的更好的路由VS？）

我不一定要寻找解决方案的代码，但更多是了解为PowerShell脚本构建GUI的概念。我想从按钮触发PowerShell代码，因此如何创建从按钮到代码执行的桥梁/链接。我已经写了多年了，但从未涉足GUI世界。所以这对我来说是新的。

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编辑： 如果有人希望启动这种类型的开发，以下是一个示例：

Add-Type -Assembly PresentationFramework

[xml]$xmlFile = @"
<Window
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="MainWindow" Height="250" Width="525">
    <Grid>
        <Label x:Name="lbl_Filename" Content="Filename" HorizontalAlignment="Left" Margin="68,38,0,0" VerticalAlignment="Top" Width="69" Height="23"/>
        <Button x:Name="btn_CreateFile" Content="Create File" HorizontalAlignment="Left" Margin="294,64,0,0" VerticalAlignment="Top" Width="96"/>
        <TextBox x:Name="txt_Filename" HorizontalAlignment="Left" Margin="68,66,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="185"/>
    </Grid>
</Window>
"@


$xamlReader = (New-Object System.Xml.XmlNodeReader $xmlFile)
$xamlDialog = [Windows.Markup.XamlReader]::Load($xamlReader)


$btn_CreateFile = $xamlDialog.FindName("btn_CreateFile")
$txt_Filename   = $xamlDialog.FindName("txt_Filename")


$btn_CreateFile.Add_Click({
    $xamlDialog.Hide()
    $txtstr_Filename = $txt_Filename.Text.ToString()
    New-Item -Type File -Path "$($HOME)\$($txtstr_Filename)" | Out-Null
})



$xamlDialog.ShowDialog() | Out-Null

原文

In Visual Studio, I created a new PowerShell Script Project to build a GUI for a script. Its something simple for now to moreso understand the concept of how this would work.

In the GUI I want to enter a filename in a textbox and then create a file when I click the button using the filename I entered in the textbox.

I named the textbox and the button (see xml). When I try to add a click event handler for the button I get this message in VS: The document item has no code-behind file. Add a code-behind file and a class definition before adding event handlers.

What am I missing here? (Alternatively, I've seen users grab the xml code from VS and use directly in PowerShell ISE/script to develop GUI. Would this be a better route vs using Visual Studio?)

I am not necessarily looking for the code to the solution, but more to understand the concept of building a GUI for PowerShell scripts. I would like to trigger PowerShell code from the buttons, so how would I create that bridge/link from button to code execution. I have been scripting for years but never dabbled into the GUI world. So this is new to me.

Edit:
If anyone is looking to start this type of development, here is a sample:

Add-Type -Assembly PresentationFramework

[xml]$xmlFile = @"
<Window
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  Title="MainWindow" Height="250" Width="525">
    <Grid>
        <Label x:Name="lbl_Filename" Content="Filename" HorizontalAlignment="Left" Margin="68,38,0,0" VerticalAlignment="Top" Width="69" Height="23"/>
        <Button x:Name="btn_CreateFile" Content="Create File" HorizontalAlignment="Left" Margin="294,64,0,0" VerticalAlignment="Top" Width="96"/>
        <TextBox x:Name="txt_Filename" HorizontalAlignment="Left" Margin="68,66,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="185"/>
    </Grid>
</Window>
"@


$xamlReader = (New-Object System.Xml.XmlNodeReader $xmlFile)
$xamlDialog = [Windows.Markup.XamlReader]::Load($xamlReader)


$btn_CreateFile = $xamlDialog.FindName("btn_CreateFile")
$txt_Filename   = $xamlDialog.FindName("txt_Filename")


$btn_CreateFile.Add_Click({
    $xamlDialog.Hide()
    $txtstr_Filename = $txt_Filename.Text.ToString()
    New-Item -Type File -Path "$($HOME)\$($txtstr_Filename)" | Out-Null
})



$xamlDialog.ShowDialog() | Out-Null

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