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How To: Create a File

Demonstrates how to use the StorageContainer class to create a save game file in the title storage area on a device specified by the gamer. This example assumes you obtained a StorageDevice. To obtain a StorageDevice, see How To: Get a StorageDevice Asynchronously.

The Complete Sample

The code in the topic shows you the technique. You can download a complete code sample for this topic, including full source code and any additional supporting files required by the sample.

Creating a File

To create a save game file in title storage

  1. Call the Guide.BeginShowStorageDeviceSelector method to get a device index indicating which device the user prefers.

  2. Open a StorageContainer on the device, and then pass the name of your title.

  3. Call Path.Combine to merge the container path with the name of the file to be created.

  4. Call File.Exists to confirm that the file is not already present.

  5. Call File.Create with the file name of the file to create.

    File.Create returns a FileStream object that you can use to add data to the file.

  6. Call Close to close the file after you have populated it with data.

  7. Call StorageContainer to commit the changes to the device.

private static void DoCreate(StorageDevice device)
{
    // Open a storage container.
    StorageContainer container =
        device.OpenContainer("StorageDemo");

    // Add the container path to our file name.
    string filename = Path.Combine(container.Path, "demobinary.sav");

    // Create a new file.
    if (!File.Exists(filename))
    {
        FileStream file = File.Create(filename);
        file.Close();
    }
    // Dispose the container, to commit the data.
    container.Dispose();
}

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