Implementation of the visual studio post

[Nykeriab]

Realization took an example, but still mistakes, perhaps because the example for UWP would not help the kettle... If I remove the request.ContentLength and close the flows. Is something going to change to UWP? It's just that I've decided that all the streams in UWP are shutting down.

There's a code of some other example, but the point is the same. Studio, as it did at the Close() and ContentLength

 WebRequest request = WebRequest.Create ("http://www.contoso.com/PostAccepter.aspx ");
        // Set the Method property of the request to POST.
        request.Method = "POST";
        // Create POST data and convert it to a byte array.
        string postData = "This is a test that posts this string to a Web server.";
        byte[] byteArray = Encoding.UTF8.GetBytes (postData);
        // Set the ContentType property of the WebRequest.
        request.ContentType = "application/x-www-form-urlencoded";
        // Set the ContentLength property of the WebRequest.
        request.ContentLength = byteArray.Length;
        // Get the request stream.
        Stream dataStream = request.GetRequestStream ();
        // Write the data to the request stream.
        dataStream.Write (byteArray, 0, byteArray.Length);
        // Close the Stream object.
        dataStream.Close ();
        // Get the response.
        WebResponse response = request.GetResponse ();
        // Display the status.
        Console.WriteLine (((HttpWebResponse)response).StatusDescription);
        // Get the stream containing content returned by the server.
        dataStream = response.GetResponseStream ();
        // Open the stream using a StreamReader for easy access.
        StreamReader reader = new StreamReader (dataStream);
        // Read the content.
        string responseFromServer = reader.ReadToEnd ();
        // Display the content.
        Console.WriteLine (responseFromServer);
        // Clean up the streams.
        reader.Close ();
        dataStream.Close ();
        response.Close ();

Next, I've removed some of them, and some of them have slightly changed, there's no mistake, and I'm even working on it.

// Create a request using a URL that can receive a post. 
        WebRequest request = WebRequest.Create("Какой-нибудь мой сервак");
        // Set the Method property of the request to POST.
        request.Method = "POST";
        // Create POST data and convert it to a byte array.
        string postData = "action=101&login=" + Login.Text + "&pass=" + Pass.Text;
        byte[] byteArray = Encoding.UTF8.GetBytes(postData);
        // Set the ContentType property of the WebRequest.
        request.ContentType = "application/x-www-form-urlencoded";
        // Set the ContentLength property of the WebRequest.
        // Get the request stream.
        Stream dataStream = await request.GetRequestStreamAsync();
        // Write the data to the request stream.
        dataStream.Write(byteArray, 0, byteArray.Length);
        // Get the response.
        WebResponse response = await request.GetResponseAsync();
        // Display the status.
        Resp.Text = ((HttpWebResponse)response).StatusDescription;
        // Get the stream containing content returned by the server.
        dataStream = response.GetResponseStream();
        // Open the stream using a StreamReader for easy access.
        StreamReader reader = new StreamReader(dataStream);
        // Read the content.
        string responseFromServer = reader.ReadToEnd();
        // Display the content.
        JArray jsonArray = JArray.Parse(responseFromServer);
        JToken jsonArray_Item = jsonArray.First;
      string  Answer = jsonArray_Item.Value<string>("answer");
        Resp.Text += Answer;
        if (Answer == "ok")
        {
            Frame.Navigate(typeof(MainPage));
        }

[rosemadder]

Why is this WebRequest thing? This is a working example. You can use and try-catch and you can ski.

public async Task<string> SendPostRequest(string url, string body)
    {
        var httpClient = new HttpClient();
    httpClient.DefaultRequestHeaders.Add("Accept", "application/json");

    var response = await httpClient.PostAsync(url, new StringContent(body, Encoding.UTF8, "application/json"));

    response.EnsureSuccessStatusCode();

    string content = await response.Content.ReadAsStringAsync();

    return content;
}