/// <summary>
/// 使用附带新值的实体信息更新指定实体属性的值(把原来的记录都删除,再添加一条)
/// </summary>
/// <param name="propertyExpression">属性表达式</param>
/// <param name="isSave">是否执行保存</param>
/// <param name="entity">附带新值的实体信息，必须包含主键</param>
/// <returns>操作影响的行数</returns>
/*public int Update(Expression<Func<TEntity, object>> propertyExpression, TEntity entity, bool isSave = true)
* {
* //throw new NotSupportedException("上下文公用，不支持按需更新功能。");
* PublicHelper.CheckArgument(propertyExpression, "propertyExpression");
* PublicHelper.CheckArgument(entity, "entity");
* EFContext.RegisterModified<TEntity>(propertyExpression, entity);
* if (isSave)
* {
* var dbSet = EFContext.Set<TEntity>();
* dbSet.Local.Clear();
* var entry = EFContext.DbContext.Entry(entity);
* return EFContext.Commit(false);
* }
* return 0;
* }*/
public int Update(Expression <Func <TEntity, object> > propertyExpression, params TEntity[] entities)
{
PublicHelper.CheckArgument(propertyExpression, "propertyExpression");
PublicHelper.CheckArgument(entities, "entity");
DbContextExtensions.Update <TEntity>(this.EFContext.DbContext, propertyExpression, entities);
return(DbContextExtensions.SaveChanges(this.EFContext.DbContext, false));
//EFContext.Update<TEntity>(propertyExpression, entities);
//return EFContext.Commit(false);
}
public int SaveChange()
{
return(DbContextExtensions.SaveChanges(this, RefreshConflict.MergeClientAndStore));
}
