private void btnSearch_Click(object sender, RoutedEventArgs e)
{
if (string.IsNullOrEmpty(txtName.Text))
{
return;
}
List<APIParameter> param = new List<APIParameter>();
param.Add(new APIParameter("method", "friends.search"));
param.Add(new APIParameter("name", txtName.Text));
App.RenrenAPI.RequestAPIInterface(SearchCallback, param);
m_progressIndicatorHelper.PushTask();
}