C#, How to download file into string with progress callback?
- by Kaminari
I would like to use the WebClient (or there is another better option?) but there is a problem. I understand that opening up the stream takes some time and this can not be avoided. However, reading it takes a strangely much more amount of time compared to read it entirely immediately.
Of course it's not working good because i'm not so familiar with streams. Is there a best way to do this? I mean two ways, to string and to file. Progress is my own delegate and it's working good.
FIRST UPDATE:
Ok, now i got something like this and it seems to work but still slow:
System.Net.WebClient client = new System.Net.WebClient();
System.IO.Stream streamRemote = client.OpenRead(new Uri(URL));
if (savePath == null)
{
StreamReader reader = new StreamReader(streamRemote);
int iByteSize = 0;
byte[] byteBuffer = new byte[iSize];
char[] charBuffer = new char[iSize];
StringBuilder sb = new StringBuilder();
while ((iByteSize = reader.Read(charBuffer, 0, iSize)) > 0)
{
sb.Append(charBuffer, 0, iByteSize);
iRunningByteTotal += iByteSize;
float dIndex = (float)(iRunningByteTotal);
float dTotal = (float)byteBuffer.Length;
float dProgressPercentage = (dIndex / dTotal);
float iProgressPercentage = (dProgressPercentage * 100);
if (Progress != null) Progress(iProgressPercentage);
}
result = sb.ToString();
}
Im wondering about DownloadStringAsync method?
