C# System.OutOfMemoryException

Question

写了一个定时器，在每隔1小时，需要调用下面的方式,每次调用该方法，可能要调用上百次。但该定时器执行了多次之后，就报"System.OutOfMemoryException" 异常。
请问如何解决?
谢谢！
public class Files
{

    public static string GetWebPage(string url, string indata, string dataurl, Encoding encoding) 
    {
        string responseFromServer = null;
        try
        {
            string postData = indata;
            byte[] byteArray = encoding.GetBytes(postData);

            WebRequest request = WebRequest.Create(url);
            request.Method = "POST";
            request.ContentType = "text/xml";
            request.ContentLength = byteArray.Length;

            Stream dataStream = request.GetRequestStream();
            dataStream.Write(byteArray, 0, byteArray.Length);
            dataStream.Close();

            WebResponse response = request.GetResponse();
            dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            responseFromServer = reader.ReadToEnd();
             reader.Close();
             dataStream.Close();
             response.Close();

        }
        catch (Exception ex)
        {
            StreamWriter excptswstream = new StreamWriter("c:\\11.txt", false, System.Text.Encoding.Default);
            excptswstream.Write("数据读取错误:========"+ ex.Message);
             excptswstream.Close();

            return "数据读取错误";
        }

        return responseFromServer;
    }
}

Answer 1

问题可能在于你的定时器