PowerShell Winform GUI 中的 WebView2

Question

我找不到任何关于此的信息，所以我不确定它是否完全可行。我目前正在尝试将 WebView2 控件集成到我的 PowerShell Winform GUI 中。在调试我的脚本时，我可以看到已创建 webView2 控件，但从未加载过任何内容。我安装了 WebView2 运行时。

这是我目前拥有的：

function Show-test-WebView2Control_psf {

#----------------------------------------------
#region Import the Assemblies
#----------------------------------------------
[void][reflection.assembly]::LoadFile('C:\Tests\Assemblies\Debug\Microsoft.Web.WebView2.WinForms.dll')
[void][reflection.assembly]::LoadFile('C:\Tests\Assemblies\Microsoft.Web.WebView2.Core.dll')
[void][reflection.assembly]::LoadFile('C:\Tests\Assemblies\Microsoft.Web.WebView2.Wpf.dll')
[void][reflection.assembly]::Load('System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a')
[void][reflection.assembly]::Load('System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089')
#endregion Import Assemblies

#----------------------------------------------
#region Generated Form Objects
#----------------------------------------------
[System.Windows.Forms.Application]::EnableVisualStyles()
$form1 = New-Object 'System.Windows.Forms.Form'
$buttonRefresh = New-Object 'System.Windows.Forms.Button'
$buttonGo = New-Object 'System.Windows.Forms.Button'
$textbox1 = New-Object 'System.Windows.Forms.TextBox'
[Microsoft.Web.WebView2.WinForms.WebView2] $webview = New-Object 'Microsoft.Web.WebView2.WinForms.WebView2'
$InitialFormWindowState = New-Object 'System.Windows.Forms.FormWindowState'
#endregion Generated Form Objects

#----------------------------------------------
# User Generated Script
#----------------------------------------------

$form1_Load={
    #TODO: Initialize Form Controls here
    $webview.Source = ([uri]::new($textbox1.Text))
    $webview.Visible = $true
}

$webview_Ready = {
    $webview.NavigateToString("https://www.google.com")
}


$webview_CoreWebView2Ready={
    $webview.Source = [System.Uri]$textbox1.Text
}

$buttonGo_Click={
    #TODO: Place custom script here
    $webview.Source = [System.Uri] $textbox1.Text;
}

$webview_SourceChanged={
    $form1.Text = $webview.Source.AbsoluteUri;
}

# --End User Generated Script--
#----------------------------------------------
#region Generated Events
#----------------------------------------------

$Form_StateCorrection_Load=
{
    #Correct the initial state of the form to prevent the .Net maximized form issue
    $form1.WindowState = $InitialFormWindowState
}

$Form_Cleanup_FormClosed=
{
    #Remove all event handlers from the controls
    try
    {
        $buttonGo.remove_Click($buttonGo_Click)
        $webview.remove_CoreWebView2Ready($webview_CoreWebView2Ready)
        $webview.remove_SourceChanged($webview_SourceChanged)
        $form1.remove_Load($form1_Load)
        $form1.remove_Load($Form_StateCorrection_Load)
        $form1.remove_FormClosed($Form_Cleanup_FormClosed)
    }
    catch { Out-Null <# Prevent PSScriptAnalyzer warning #> }
}
#endregion Generated Events

#----------------------------------------------
#region Generated Form Code
#----------------------------------------------
$form1.SuspendLayout()
#
# form1
#
$form1.Controls.Add($buttonRefresh)
$form1.Controls.Add($buttonGo)
$form1.Controls.Add($textbox1)
$form1.Controls.Add($webview)
$form1.AutoScaleDimensions = New-Object System.Drawing.SizeF(6, 13)
$form1.AutoScaleMode = 'Font'
$form1.ClientSize = New-Object System.Drawing.Size(619, 413)
$form1.Name = 'form1'
$form1.Text = 'Form'
$form1.add_Load($form1_Load)
#
# buttonRefresh
#
$buttonRefresh.Location = New-Object System.Drawing.Point(13, 13)
$buttonRefresh.Name = 'buttonRefresh'
$buttonRefresh.Size = New-Object System.Drawing.Size(75, 23)
$buttonRefresh.TabIndex = 3
$buttonRefresh.Text = 'Refresh'
$buttonRefresh.UseVisualStyleBackColor = $True
#
# buttonGo
#
$buttonGo.Location = New-Object System.Drawing.Point(538, 9)
$buttonGo.Name = 'buttonGo'
$buttonGo.Size = New-Object System.Drawing.Size(75, 23)
$buttonGo.TabIndex = 2
$buttonGo.Text = 'Go'
$buttonGo.UseVisualStyleBackColor = $True
$buttonGo.add_Click($buttonGo_Click)
#
# textbox1
#
$textbox1.Location = New-Object System.Drawing.Point(96, 13)
$textbox1.Name = 'textbox1'
$textbox1.Size = New-Object System.Drawing.Size(435, 20)
$textbox1.TabIndex = 1
$textbox1.Text = 'https://www.bing.com'
#
# webview
#
$webview.Location = New-Object System.Drawing.Point(0, 49)
$webview.Name = 'webview'
$webview.Size = New-Object System.Drawing.Size(619, 364)
$webview.TabIndex = 0
$webview.ZoomFactor = 1
$webview.add_SourceChanged($webview_SourceChanged)

$form1.ResumeLayout()
#endregion Generated Form Code

#----------------------------------------------

#Save the initial state of the form
$InitialFormWindowState = $form1.WindowState
#Init the OnLoad event to correct the initial state of the form
$form1.add_Load($Form_StateCorrection_Load)
#Clean up the control events
$form1.add_FormClosed($Form_Cleanup_FormClosed)
#Show the Form
    return $form1.ShowDialog()

} #End Function

    #Call the form
    Show-test-WebView2Control_psf | Out-Null

有办法吗？如果是这样，有人可以告诉我我做错了什么吗？

Answer 1

我自己尝试你的代码我必须解决两个问题：

从 webview2 nuget 包（作为参考，我使用了 WebView2 nuget 1.0.781-prerelease package）我从 net45 文件夹复制了 winforms 和核心 DLL，并将 x64 webview2loader.dll 全部复制到 wv2 文件夹中。您需要确保将适当 CPU 架构的 webview2loader.dll 复制到核心 dll 旁边。
默认的 WebView2 用户数据文件夹位于包含主机可执行文件的文件夹中。在这种情况下，主机可执行文件是 powershell，并且包含的文件夹不能被正常进程写入。因此，您需要在初始化 WebView2 之前通过 CoreWebView2CreationProperties UserDataFolder 属性更改用户数据文件夹。

我有下面修改过的代码。需要额外的工作来调整和关闭 WebView2 并解决其他问题。

function Show-test-WebView2Control_psf {

#----------------------------------------------
#region Import the Assemblies
#----------------------------------------------
# I've put the following files in `C:\users\davris\tmp\wv2`
#     Microsoft.Web.WebView2.Core.dll
#     Microsoft.Web.WebView2.WinForms.dll
#     WebView2Loader.dll
[void][reflection.assembly]::LoadFile('C:\users\davris\tmp\wv2\Microsoft.Web.WebView2.WinForms.dll')
[void][reflection.assembly]::LoadFile('C:\users\davris\tmp\wv2\Microsoft.Web.WebView2.Core.dll')
[void][reflection.assembly]::Load('System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a')
[void][reflection.assembly]::Load('System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089')
#endregion Import Assemblies

#----------------------------------------------
#region Generated Form Objects
#----------------------------------------------
[System.Windows.Forms.Application]::EnableVisualStyles()
$form1 = New-Object 'System.Windows.Forms.Form'
$buttonRefresh = New-Object 'System.Windows.Forms.Button'
$buttonGo = New-Object 'System.Windows.Forms.Button'
$textbox1 = New-Object 'System.Windows.Forms.TextBox'
[Microsoft.Web.WebView2.WinForms.WebView2] $webview = New-Object 'Microsoft.Web.WebView2.WinForms.WebView2'
$webview.CreationProperties = New-Object 'Microsoft.Web.WebView2.WinForms.CoreWebView2CreationProperties'
$webview.CreationProperties.UserDataFolder = "C:\users\davris\tmp\wv2\data";
$InitialFormWindowState = New-Object 'System.Windows.Forms.FormWindowState'
#endregion Generated Form Objects

#----------------------------------------------
# User Generated Script
#----------------------------------------------

$form1_Load={
    #TODO: Initialize Form Controls here
    $webview.Source = ([uri]::new($textbox1.Text))
    $webview.Visible = $true
}

$buttonGo_Click={
    #TODO: Place custom script here
    $webview.Source = [System.Uri] $textbox1.Text;
}

$webview_SourceChanged={
    $form1.Text = $webview.Source.AbsoluteUri;
}

# --End User Generated Script--
#----------------------------------------------
#region Generated Events
#----------------------------------------------

$Form_StateCorrection_Load=
{
    #Correct the initial state of the form to prevent the .Net maximized form issue
    $form1.WindowState = $InitialFormWindowState
}

$Form_Cleanup_FormClosed=
{
    #Remove all event handlers from the controls
    try
    {
        $buttonGo.remove_Click($buttonGo_Click)
        $webview.remove_SourceChanged($webview_SourceChanged)
        $form1.remove_Load($form1_Load)
        $form1.remove_Load($Form_StateCorrection_Load)
        $form1.remove_FormClosed($Form_Cleanup_FormClosed)
    }
    catch { Out-Null <# Prevent PSScriptAnalyzer warning #> }
}
#endregion Generated Events

#----------------------------------------------
#region Generated Form Code
#----------------------------------------------
$form1.SuspendLayout()
#
# form1
#
$form1.Controls.Add($buttonRefresh)
$form1.Controls.Add($buttonGo)
$form1.Controls.Add($textbox1)
$form1.Controls.Add($webview)
$form1.AutoScaleDimensions = New-Object System.Drawing.SizeF(6, 13)
$form1.AutoScaleMode = 'Font'
$form1.ClientSize = New-Object System.Drawing.Size(619, 413)
$form1.Name = 'form1'
$form1.Text = 'Form'
$form1.add_Load($form1_Load)
#
# buttonRefresh
#
$buttonRefresh.Location = New-Object System.Drawing.Point(13, 13)
$buttonRefresh.Name = 'buttonRefresh'
$buttonRefresh.Size = New-Object System.Drawing.Size(75, 23)
$buttonRefresh.TabIndex = 3
$buttonRefresh.Text = 'Refresh'
$buttonRefresh.UseVisualStyleBackColor = $True
#
# buttonGo
#
$buttonGo.Location = New-Object System.Drawing.Point(538, 9)
$buttonGo.Name = 'buttonGo'
$buttonGo.Size = New-Object System.Drawing.Size(75, 23)
$buttonGo.TabIndex = 2
$buttonGo.Text = 'Go'
$buttonGo.UseVisualStyleBackColor = $True
$buttonGo.add_Click($buttonGo_Click)
#
# textbox1
#
$textbox1.Location = New-Object System.Drawing.Point(96, 13)
$textbox1.Name = 'textbox1'
$textbox1.Size = New-Object System.Drawing.Size(435, 20)
$textbox1.TabIndex = 1
$textbox1.Text = 'https://www.bing.com'
#
# webview
#
$webview.Location = New-Object System.Drawing.Point(0, 49)
$webview.Name = 'webview'
$webview.Size = New-Object System.Drawing.Size(619, 364)
$webview.TabIndex = 0
$webview.ZoomFactor = 1
$webview.add_SourceChanged($webview_SourceChanged)

$form1.ResumeLayout()
#endregion Generated Form Code

#----------------------------------------------

#Save the initial state of the form
$InitialFormWindowState = $form1.WindowState
#Init the OnLoad event to correct the initial state of the form
$form1.add_Load($Form_StateCorrection_Load)
#Clean up the control events
$form1.add_FormClosed($Form_Cleanup_FormClosed)
#Show the Form
    return $form1.ShowDialog()

} #End Function

    #Call the form
    Show-test-WebView2Control_psf | Out-Null

PowerShell Winform GUI 中的 WebView2

WebView2 in PowerShell Winform GUI

powershell

scripting

winforms

webview2