/// <summary>
/// Completes the asynchronous content loading operation.
/// </summary>
/// <param name = "asyncResult">An object that identifies the asynchronous operation.</param>
/// <returns>An object that represents the result of the asynchronous content loading operation.</returns>
public LoadResult EndLoad(IAsyncResult asyncResult)
{
ContentLoaderBaseAsyncResult result = (ContentLoaderBaseAsyncResult)asyncResult;
if (result.Error != null)
{
throw result.Error;
}
return(result.Page != null ? new LoadResult(result.Page) : new LoadResult(result.RedirectUri));
}
/// <summary>
/// Begins asynchronous loading of the content for the specified target URI.
/// </summary>
/// <param name = "targetUri">The URI to load content for.</param>
/// <param name = "currentUri">The URI that is currently loaded.</param>
/// <param name = "userCallback">The method to call when the content finishes loading.</param>
/// <param name = "asyncState">An object for storing custom state information.</param>
/// <returns>An object that stores information about the asynchronous operation.</returns>
public IAsyncResult BeginLoad(Uri targetUri, Uri currentUri, AsyncCallback userCallback, object asyncState)
{
LoaderBase loader = this.CreateLoaderPrivate();
ContentLoaderBaseAsyncResult result = new ContentLoaderBaseAsyncResult(asyncState, loader, userCallback);
result.BeginLoadCompleted = false;
loader.Result = result;
lock (result.Lock)
{
loader.Load(targetUri, currentUri);
result.BeginLoadCompleted = true;
return result;
}
}
/// <summary>
/// Begins asynchronous loading of the content for the specified target URI.
/// </summary>
/// <param name = "targetUri">The URI to load content for.</param>
/// <param name = "currentUri">The URI that is currently loaded.</param>
/// <param name = "userCallback">The method to call when the content finishes loading.</param>
/// <param name = "asyncState">An object for storing custom state information.</param>
/// <returns>An object that stores information about the asynchronous operation.</returns>
public IAsyncResult BeginLoad(Uri targetUri, Uri currentUri, AsyncCallback userCallback, object asyncState)
{
LoaderBase loader = this.CreateLoaderPrivate();
ContentLoaderBaseAsyncResult result = new ContentLoaderBaseAsyncResult(asyncState, loader, userCallback);
result.BeginLoadCompleted = false;
loader.Result = result;
lock (result.Lock)
{
loader.Load(targetUri, currentUri);
result.BeginLoadCompleted = true;
return(result);
}
}
