本文整理汇总了C#中WebClient.DownloadFileTaskAsync方法的典型用法代码示例。如果您正苦于以下问题：C# WebClient.DownloadFileTaskAsync方法的具体用法？C# WebClient.DownloadFileTaskAsync怎么用？C# WebClient.DownloadFileTaskAsync使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类WebClient的用法示例。
在下文中一共展示了WebClient.DownloadFileTaskAsync方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: DownloadFile_InvalidArguments_ThrowExceptions
public static void DownloadFile_InvalidArguments_ThrowExceptions()
{
var wc = new WebClient();
Assert.Throws<ArgumentNullException>("address", () => { wc.DownloadFile((string)null, ""); });
Assert.Throws<ArgumentNullException>("address", () => { wc.DownloadFile((Uri)null, ""); });
Assert.Throws<ArgumentNullException>("address", () => { wc.DownloadFileAsync((Uri)null, ""); });
Assert.Throws<ArgumentNullException>("address", () => { wc.DownloadFileAsync((Uri)null, "", null); });
Assert.Throws<ArgumentNullException>("address", () => { wc.DownloadFileTaskAsync((string)null, ""); });
Assert.Throws<ArgumentNullException>("address", () => { wc.DownloadFileTaskAsync((Uri)null, ""); });
Assert.Throws<ArgumentNullException>("fileName", () => { wc.DownloadFile("http://localhost", null); });
Assert.Throws<ArgumentNullException>("fileName", () => { wc.DownloadFile(new Uri("http://localhost"), null); });
Assert.Throws<ArgumentNullException>("fileName", () => { wc.DownloadFileAsync(new Uri("http://localhost"), null); });
Assert.Throws<ArgumentNullException>("fileName", () => { wc.DownloadFileAsync(new Uri("http://localhost"), null, null); });
Assert.Throws<ArgumentNullException>("fileName", () => { wc.DownloadFileTaskAsync("http://localhost", null); });
Assert.Throws<ArgumentNullException>("fileName", () => { wc.DownloadFileTaskAsync(new Uri("http://localhost"), null); });
}示例2: DownloadFileAsync
protected override Task DownloadFileAsync(WebClient wc, string address, string fileName) => wc.DownloadFileTaskAsync(address, fileName);示例3: ConcurrentOperations_Throw
public static async Task ConcurrentOperations_Throw()
{
await LoopbackServer.CreateServerAsync((server, url) =>
{
var wc = new WebClient();
Task ignored = wc.DownloadDataTaskAsync(url); // won't complete
Assert.Throws<NotSupportedException>(() => { wc.DownloadData(url); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadDataAsync(url); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadDataTaskAsync(url); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadString(url); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadStringAsync(url); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadStringTaskAsync(url); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadFile(url, "path"); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadFileAsync(url, "path"); });
Assert.Throws<NotSupportedException>(() => { wc.DownloadFileTaskAsync(url, "path"); });
Assert.Throws<NotSupportedException>(() => { wc.UploadData(url, new byte[42]); });
Assert.Throws<NotSupportedException>(() => { wc.UploadDataAsync(url, new byte[42]); });
Assert.Throws<NotSupportedException>(() => { wc.UploadDataTaskAsync(url, new byte[42]); });
Assert.Throws<NotSupportedException>(() => { wc.UploadString(url, "42"); });
Assert.Throws<NotSupportedException>(() => { wc.UploadStringAsync(url, "42"); });
Assert.Throws<NotSupportedException>(() => { wc.UploadStringTaskAsync(url, "42"); });
Assert.Throws<NotSupportedException>(() => { wc.UploadFile(url, "path"); });
Assert.Throws<NotSupportedException>(() => { wc.UploadFileAsync(url, "path"); });
Assert.Throws<NotSupportedException>(() => { wc.UploadFileTaskAsync(url, "path"); });
Assert.Throws<NotSupportedException>(() => { wc.UploadValues(url, new NameValueCollection()); });
Assert.Throws<NotSupportedException>(() => { wc.UploadValuesAsync(url, new NameValueCollection()); });
Assert.Throws<NotSupportedException>(() => { wc.UploadValuesTaskAsync(url, new NameValueCollection()); });
return Task.CompletedTask;
});
}