private void GetFileLengthCallback(IAsyncResult result)
{
GetFileLengthHandler handler = (GetFileLengthHandler)((AsyncResult)result).AsyncDelegate;
fileLength = handler.EndInvoke(result); //取得文件的长度，开始导入
Log("获取到 " + fileLength.ToString() + " 行数据, 开始导入...");
ImportFileHandler importFileHandler = new ImportFileHandler(ImportFile);
IAsyncResult importResult = importFileHandler.BeginInvoke(filePath, new AsyncCallback(ImportFileCallback), null);
}
private void Btn_import_Click(object sender, EventArgs e)
{
btn_import.Enabled = false; //禁用按钮
filePath = tb_file.Text.Trim(); //文件路径
fileLength = 0;
UpdateProgressBar(0);
domains = Queue.Synchronized(new Queue()); //初始化domains
Log("正在获取文件信息...");
GetFileLengthHandler fileLengthHandler = new GetFileLengthHandler(FileOperation.GetFileLength);
IAsyncResult result = fileLengthHandler.BeginInvoke(filePath, new AsyncCallback(GetFileLengthCallback), null);
}
