protected void gvUsers_Sorting(object sender, GridViewSortEventArgs e)
{
// prop is null at this point, so the next line fails
if (ListUsers.Count > 0)
{
string orderby = gvUsers.OrderBy;
SortDirection direction = SortDirection.Ascending;
if (orderby.ToLower().EndsWith("desc"))
{
direction = SortDirection.Descending;
orderby = orderby.Split(' ')[0];
}
List <Twitter.User> sortedList = null;
if (orderby == Constants.GetVariableName(() => ListUsers[0].Index))
{
if (direction == SortDirection.Ascending)
{
sortedList = ListUsers.OrderBy(x => x.Index).ToList();
}
else
{
sortedList = ListUsers.OrderByDescending(x => x.Index).ToList();
}
}
else if (orderby == Constants.GetVariableName(() => ListUsers[0].ScreenName))
{
if (direction == SortDirection.Ascending)
{
sortedList = ListUsers.OrderBy(x => x.ScreenName).ToList();
}
else
{
sortedList = ListUsers.OrderByDescending(x => x.ScreenName).ToList();
}
}
else if (orderby == Constants.GetVariableName(() => ListUsers[0].ProfileImage))
{
if (direction == SortDirection.Ascending)
{
sortedList = ListUsers.OrderBy(x => x.ProfileImage).ToList();
}
else
{
sortedList = ListUsers.OrderByDescending(x => x.ProfileImage).ToList();
}
}
else if (orderby == Constants.GetVariableName(() => ListUsers[0].UserId))
{
if (direction == SortDirection.Ascending)
{
sortedList = ListUsers.OrderBy(x => x.UserId).ToList();
}
else
{
sortedList = ListUsers.OrderByDescending(x => x.UserId).ToList();
}
}
ListUsers = new BindingList <Twitter.User>(sortedList);
BindData();
}
}