private void CloseProgressDialog()
{
if (progressDialog != null)
{
progressDialog.Dismiss();
progressDialog = null;
}
}
private void ShowProgressDialog(string status)
{
this.progressDialog = new ProgressDialogFragment(status);
var tran = SupportFragmentManager.BeginTransaction();
progressDialog.Cancelable = true;
progressDialog.Show(tran, "progress");
}