Ghost1372

everything can be handy

Pickers

SavePicker, FilePicker and FolderPicker which support AOT, Packaged/UnPackaged and Elevated Apps.

you can use simple methods which return a string or List<string> or you can use Async methods which return a StorageFile or StorageFolder

If you want to set DefaultFileType, you need to set your FileTypeChoices item Key. for example: picker.DefaultFileType = "Images";

FilePicker

Property

Name
Options
OkButtonLabel
DefaultFileName
DefaultFileType
InitialDirectory
InitialKnownFolder
Title
FileTypeChoices
ShowAllFilesFileType

PickSingleFile/PickSingleFileAsync

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var picker = new FilePicker();
picker.Title = "Custom Title";
picker.DefaultFileName = "Default FileName";
picker.DefaultFileType = "*.*";
picker.ShowAllFilesFileType = true;
picker.OkButtonLabel = "Custom Confirm";
picker.FileTypeChoices = new Dictionary<string, List<string>>
{
{ "Images", new List<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" } },
{ "Text Files", new List<string> { "*.txt", "*.md", "*.log" } }
};

picker.InitialDirectory = @"C:\";

// Or use 
// picker.InitialKnownFolder = KnownFolderOption.Downloads;

var file = await picker.PickSingleFileAsync(Hwnd);
if (file != null)
{
    Txt.Text = file.Path;
}

PickMultipleFiles/PickMultipleFilesAsync

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var picker = new FilePicker();
picker.Title = "Custom Title";
picker.DefaultFileName = "Default FileName";
picker.DefaultFileType = "*.*";
picker.ShowAllFilesFileType = true;
picker.OkButtonLabel = "Custom Confirm";
picker.FileTypeChoices = new Dictionary<string, List<string>>
{
{ "Images", new List<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" } },
{ "Text Files", new List<string> { "*.txt", "*.md", "*.log" } }
};

picker.InitialDirectory = @"C:\";

// Or use 
// picker.InitialKnownFolder = KnownFolderOption.Downloads;

var files = await picker.PickMultipleFilesAsync(Hwnd);
StringBuilder stringBuilder = new StringBuilder();
foreach (var item in files)
{
    stringBuilder.AppendLine(item.Path);
}
Txt.Text = stringBuilder.ToString();

SavePicker

Property

Name
Options
OkButtonLabel
DefaultFileName
DefaultFileType
InitialDirectory
InitialKnownFolder
Title
FileTypeChoices
ShowAllFilesFileType

PickSaveFile/PickSaveFileAsync

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var picker = new SavePicker();
picker.Title = "Custom Title";
picker.DefaultFileName = "Default FileName";
picker.DefaultFileType = "*.*";
picker.ShowAllFilesFileType = true;
picker.OkButtonLabel = "Custom Confirm";
picker.FileTypeChoices = new Dictionary<string, List<string>>
{
{ "Images", new List<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" } },
{ "Text Files", new List<string> { "*.txt", "*.md", "*.log" } }
};

picker.InitialDirectory = @"C:\";

// Or use 
// picker.InitialKnownFolder = KnownFolderOption.Downloads;

var file = await picker.PickSaveFileAsync(Hwnd);
if (file != null)
{
    Txt.Text = file.Path;
}

FolderPicker

Property

Name
Options
OkButtonLabel
DefaultFileName
InitialDirectory
InitialKnownFolder
Title

PickSingleFolder/PickSingleFolderAsync

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var picker = new FolderPicker();
picker.Title = "Custom Title";
picker.OkButtonLabel = "Custom Confirm";
picker.InitialDirectory = @"C:\";

// Or use 
// picker.InitialKnownFolder = KnownFolderOption.Downloads;

var file = await picker.PickSingleFolderAsync(Hwnd);
if (file != null)
{
    Txt.Text = file.Path;
}

PickMultipleFolders/PickMultipleFoldersAsync

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var picker = new FolderPicker();
picker.Title = "Custom Title";
picker.OkButtonLabel = "Custom Confirm";
picker.InitialDirectory = @"C:\";

// Or use 
// picker.InitialKnownFolder = KnownFolderOption.Downloads;

var files = await picker.PickMultipleFoldersAsync(Hwnd);
StringBuilder stringBuilder = new StringBuilder();
foreach (var item in files)
{
    stringBuilder.AppendLine(item.Path);
}
Txt.Text = stringBuilder.ToString();

Demo

you can run demo and see this feature.

DevWinUI

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