BrowseForFolder:居中并制作TopMost

Question

我有一个Winforms Gui和一个BrowseForFolder-Dialog。

有没有办法使这个对话框成为TopMost窗口和/或center在屏幕上的？

$getfolder = New-Object -com shell.application
$foldername = $getfolder.BrowseForFolder(0,"Text",16,"")

Answer 1

您必须指定所有者句柄。

$handle = [System.Diagnostics.Process]::GetCurrentProcess().MainWindowHandle
$getfolder = New-Object -ComObject Shell.Application
$foldername = $getfolder.BrowseForFolder([int]$handle, "Text", 16, "")

但是它是COM和.NET的混合体。

$win32WindowDefinition = @"
using System;
using System.Windows.Forms;

public class Win32Window : IWin32Window
{
    public Win32Window(IntPtr handle)
    {
        Handle = handle;
    }

    public IntPtr Handle { get; private set; }
}
"@

Add-Type -TypeDefinition $win32WindowDefinition -ReferencedAssemblies System.Windows.Forms.dll 

$ownerHandle = New-Object Win32Window -ArgumentList ([System.Diagnostics.Process]::GetCurrentProcess().MainWindowHandle)
$folderBrowserDialog = New-Object System.Windows.Forms.FolderBrowserDialog
$dialogResult = $folderBrowserDialog.ShowDialog($ownerHandle)
if ($dialogResult -eq [System.Windows.Forms.DialogResult]::OK) {
    $folderName = $folderBrowserDialog.SelectedPath
}

来自http://poshcode.org/2002

Answer 2

如果可以使用FolderBrowserDialog，将其显示为最顶部和屏幕中心，就足以将TopMost表单传递给它的ShowDialog方法。

C#示例

var f = new FolderBrowserDialog();
f.ShowDialog(new Form() { TopMost = true}); 
this.Activate();

Powershell示例

[System.Reflection.Assembly]::LoadWithPartialName("System.windows.forms")
$folder = New-Object System.Windows.Forms.FolderBrowserDialog
$form = New-Object System.Windows.Forms.Form -property @{TopMost = $True}
$folder.ShowDialog($form)