public async Task <int> GetTotalRecordCountAsync()
{
int num = 0;
if (Categories != null)
{
num += await Categories.CountAsync();
}
if (Manufacturers != null)
{
num += await Manufacturers.CountAsync();
}
if (Topics != null)
{
num += await Topics.CountAsync();
}
if (Products != null)
{
num += await Products.CountAsync();
}
//if (Products != null) num += 200000;
return(num);
}
