private async Task SetUpAsync()
{
string localFullName = $"{DownloadPath}setup.exe";
Uri uri = new Uri("http://Public.mujiannan.me/1Math/setup.exe");
Reportor.Report($"下载{uri.AbsolutePath}至{localFullName}，请耐心等待...");
await DownloadAsync(uri, localFullName);
System.Diagnostics.Process.Start(localFullName);
}
private void Initialize()
{
if (_target == null)
{
throw new Exception("PleaseGiveMeAnExcelRange");
}
if (_target.Areas.Count > 1)
{
throw new Exception("DiscontinuousExcelRange");
}
_application = _target.Application;
Reportor = new Reportor(this);
}
public Installer()
{
this.Reportor = new Reportor(this);
}
private async Task DownloadAsync(Uri uri, string localFullName)
{
HttpClientHandler httpClientHandler = new HttpClientHandler();
ProgressMessageHandler progressMessageHandler = new ProgressMessageHandler(httpClientHandler);
HttpClient httpClient = new HttpClient(progressMessageHandler);
progressMessageHandler.HttpReceiveProgress += (object sender, HttpProgressEventArgs e) => Reportor.Report(e.ProgressPercentage);//捕获下载进度，向外汇报
FileStream fileStream = File.Create(localFullName, 1024, FileOptions.Asynchronous);
byte[] bytes = await httpClient.GetByteArrayAsync(uri);
fileStream.Write(bytes, 0, bytes.Length);
fileStream.Flush();
fileStream.Close();
}