//public static IOrderedQueryable<TSource> OrderBy<TSource, TKey>(this IQueryable<TSource> source, Expression<Func<TSource, TKey>> keySelector);
//public static IOrderedQueryable<TSource> OrderByDescending<TSource, TKey>(this IQueryable<TSource> source, Expression<Func<TSource, TKey>> keySelector);
/// <summary>
/// 更新
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public void Update(TEntity entity)
{
try
{
var entry = EF.Entry(entity);
EF.Set <TEntity>().Attach(entity);
entry.State = EntityState.Modified;
}
catch (OptimisticConcurrencyException ex)
{
throw ex;
}
}
public int Insert <TEntity1>(TEntity1 entity) where TEntity1 : class
{
EF.Set <TEntity1>().Add(entity);
return(EF.SaveChanges());
}
//public static IOrderedQueryable<TSource> OrderBy<TSource, TKey>(this IQueryable<TSource> source, Expression<Func<TSource, TKey>> keySelector);
//public static IOrderedQueryable<TSource> OrderByDescending<TSource, TKey>(this IQueryable<TSource> source, Expression<Func<TSource, TKey>> keySelector);
/// <summary>
/// 更新
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public int Update(TEntity entities)
{
if (EF == null)
{
throw new ArgumentNullException("dbContext");
}
if (entities == null)
{
throw new ArgumentNullException("entities");
}
DbSet <TEntity> dbSet = EF.Set <TEntity>();
try
{
System.Data.Entity.Infrastructure.DbEntityEntry <TEntity> entry = EF.Entry(entities);
if (entry.State == EntityState.Detached)
{
dbSet.Attach(entities);
entry.State = EntityState.Modified;
}
}
catch (InvalidOperationException)
{
TEntity oldEntity = dbSet.Find(entities.ID);
EF.Entry(oldEntity).CurrentValues.SetValues(entities);
}
return(SaveChanges());
}