uwp criar, ler e gravar arquivos locais

https://msdn.microsoft.com/en-us/library/windows/apps/mt185401.aspx

https://msdn.microsoft.com/pt-br/library/windows/apps/mt188752.aspx

http://blog.jerrynixon.com/2012/06/windows-8-how-to-read-files-in-winrt.html

pivot headers

https://blog.hompus.nl/2015/09/04/responsive-pivot-headers-in-universal-windows-platform-apps/




Storage app uwp

https://msdn.microsoft.com/en-us/library/windows/apps/windows.storage.applicationdatacontainersettings.aspx

APIs da UWP

https://msdn.microsoft.com/pt-br/library/windows/apps/mt186421.aspx

APIs do Windows


download file c# e xaml

https://msdn.microsoft.com/en-us/library/windows/apps/xaml/jj152726.aspx

private async void Download()
{
try
{
String feed = "http://www.ultrarss.net/feeds/novelas.json";
System.Net.Http.HttpClient Webclient = new System.Net.Http.HttpClient();
Webclient.MaxResponseContentBufferSize = 256000;
// Webclient.DefaultRequestHeaders.Add("user-agent", "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0");
HttpResponseMessage response = await Webclient.GetAsync(feed);
response.EnsureSuccessStatusCode();
responseBodyAsText = await response.Content.ReadAsStringAsync();
tb1.Text = responseBodyAsText;
}
catch (HttpRequestException hre)
{
tb1.Text = hre.ToString();
}
catch (Exception ex)
{
// For debugging
tb1.Text = ex.ToString();
}
}

appbar

http://stackoverflow.com/questions/24588500/howto-programmatically-add-appbarcommand-to-windows-phone-8-1-app