CopyAsync(IStorageFolder) | copyAsync(IStorageFolder) method

StorageFile.CopyAsync(IStorageFolder) | copyAsync(IStorageFolder) method

Creates a copy of the file in the specified folder.

Syntax


storageFile.copyAsync(destinationFolder).done( /* Your success and error handlers */ );

Parameters

destinationFolder

Type: IStorageFolder

The destination folder where the copy of the file is created.

Return value

Type: IAsyncOperation<StorageFile>

When this method completes, it returns a StorageFile that represents the copy of the file created in the destinationFolder.

Exceptions

ExceptionCondition
System.UnauthorizedAccessException

You don't have permission to copy a file into the destination folder.

Remarks

This method uses the FailIfExists value from the CreationCollisionOption enumeration by default. That is, this method raises an exception if a file with the same name already exists in the destination folder. If you want to handle a file name collision in a different way, call the CopyAsync(IStorageFolder, String, NameCollisionOption) method.

Examples

The following example copies a file to the specified folder by calling the CopyAsync() method.


//// Get the app's temporary folder.
var ApplicationData = Windows.Storage.ApplicationData;
var tempFolder = ApplicationData.current.temporaryFolder;

// Create a sample file in the temporary folder.
var newFileName = "test.txt";
var newFilePromise = tempFolder.createFileAsync(newFileName);
var copiedFilePromise = newFilePromise.then(function createFileSuccess(newFile) {

    // Get the app's local folder to use as the destination folder.
    var localFolder = ApplicationData.current.localFolder;

    // Copy the file to the destination folder.
    // Fail if the file already exists.
    return newFile.copyAsync(localFolder);
});
copiedFilePromise.done(function copySuccess(copiedFile) {
    // File was copied to the destination folder

}, function copyFail(error) {
    // File creation or copy failed

});

Requirements (Windows 10 device family)

Device family

Universal, introduced version 10.0.10240.0

API contract

Windows.Foundation.UniversalApiContract, introduced version 1.0

Namespace

Windows.Storage
Windows::Storage [C++]

Metadata

Windows.Foundation.UniversalApiContract.winmd

Requirements (Windows 8.x and Windows Phone 8.x)

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows Phone 8

Namespace

Windows.Storage
Windows::Storage [C++]

Metadata

Windows.winmd

See also

StorageFile
CopyAsync(IStorageFolder, String)
CopyAsync(IStorageFolder, String, NameCollisionOption)

 

 

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