Ghost1372

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Pickers

This API will be removed in WASDK v1.8 or any future version that introduces the Picker API.

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

FilePicker

Property

Name
Options
ShowDetailedExtension
CommitButtonText
SuggestedFileName
DefaultFileExtension
InitialDirectory
SuggestedStartLocation
Title
FileTypeChoices
ShowAllFilesOption

PickSingleFile/PickSingleFileAsync

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var picker = new FilePicker(Hwnd);
picker.Title = "Custom Title";
picker.SuggestedFileName = "Default FileName";
picker.DefaultFileExtension = "*.*";
picker.ShowAllFilesOption = true;
picker.CommitButtonText = "Custom Confirm";
picker.FileTypeChoices = new Dictionary<string, IList<string>>
{
{ "Images", new List<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" } },
{ "Text Files", new List<string> { "*.txt", "*.md", "*.log" } }
};

// OR
// picker.FileTypeChoices.Add("Images", new List<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" });
// picker.FileTypeChoices.Add("Text Files", new List<string> { "*.txt", "*.md", "*.log" });

picker.InitialDirectory = @"C:\";

// Or use 
// picker.SuggestedStartLocation = PickerLocationId.Downloads;

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

PickMultipleFiles/PickMultipleFilesAsync

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var picker = new FilePicker(Hwnd);
picker.Title = "Custom Title";
picker.SuggestedFileName = "Default FileName";
picker.DefaultFileExtension = "*.*";
picker.ShowAllFilesOption = true;
picker.CommitButtonText = "Custom Confirm";
picker.FileTypeChoices = new Dictionary<string, IList<string>>
{
{ "Images", new IList<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" } },
{ "Text Files", new IList<string> { "*.txt", "*.md", "*.log" } }
};

// OR
// picker.FileTypeChoices.Add("Images", new List<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" });
// picker.FileTypeChoices.Add("Text Files", new List<string> { "*.txt", "*.md", "*.log" });

picker.InitialDirectory = @"C:\";

// Or use 
// picker.SuggestedStartLocation = PickerLocationId.Downloads;

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

SavePicker

Property

Name
Options
ShowDetailedExtension
CommitButtonText
SuggestedFileName
DefaultFileExtension
InitialDirectory
SuggestedStartLocation
Title
FileTypeChoices
ShowAllFilesOption

PickSaveFile/PickSaveFileAsync

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var picker = new SavePicker(Hwnd);
picker.Title = "Custom Title";
picker.SuggestedFileName = "Default FileName";
picker.DefaultFileExtension = "*.*";
picker.ShowAllFilesOption = true;
picker.CommitButtonText = "Custom Confirm";
picker.FileTypeChoices = new Dictionary<string, IList<string>>
{
{ "Images", new IList<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" } },
{ "Text Files", new IList<string> { "*.txt", "*.md", "*.log" } }
};

// OR
// picker.FileTypeChoices.Add("Images", new List<string> { "*.png", "*.jpg", "*.jpeg", "*.bmp", "*.gif" });
// picker.FileTypeChoices.Add("Text Files", new List<string> { "*.txt", "*.md", "*.log" });

picker.InitialDirectory = @"C:\";

// Or use 
// picker.SuggestedStartLocation = PickerLocationId.Downloads;

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

FolderPicker

Property

Name
Options
CommitButtonText
SuggestedFileName
InitialDirectory
SuggestedStartLocation
Title

PickSingleFolder/PickSingleFolderAsync

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

// Or use 
// picker.SuggestedStartLocation = PickerLocationId.Downloads;

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

PickMultipleFolders/PickMultipleFoldersAsync

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

// Or use 
// picker.SuggestedStartLocation = PickerLocationId.Downloads;

var files = await picker.PickMultipleFoldersAsync();
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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