public int Update(TEntity entity)
{
int result = 0;
try
{
RemoveHoldingEntityInContext(entity);
dbcontext.Set <TEntity>().Attach(entity);
PropertyInfo[] props = entity.GetType().GetProperties().Where(pi => !Attribute.IsDefined(pi, typeof(NotMappedAttribute))).ToArray();
foreach (PropertyInfo prop in props)
{
if (prop.GetValue(entity, null) != null)
{
if (prop.GetValue(entity, null).ToString() == " ")
{
dbcontext.Entry(entity).Property(prop.Name).CurrentValue = null;
}
dbcontext.Entry(entity).Property(prop.Name).IsModified = true;
}
}
result = dbcontext.SaveChanges();
}
catch (Exception ex)
{
throw;
}
finally
{
}
return(result);
}
public int Update(TEntity entity)
{
dbcontext.Set <TEntity>().Attach(entity);
PropertyInfo[] props = entity.GetType().GetProperties();
foreach (PropertyInfo prop in props)
{
if (prop.GetValue(entity, null) != null)
{
if (prop.GetValue(entity, null).ToString() == " ")
{
dbcontext.Entry(entity).Property(prop.Name).CurrentValue = null;
}
dbcontext.Entry(entity).Property(prop.Name).IsModified = true;
}
}
return(dbcontext.SaveChanges());
}
/// <summary>
/// update
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="entity">entity</param>
/// <returns></returns>
public int Update <TEntity>(TEntity entity) where TEntity : class
{
dbcontext.Set <TEntity>().Attach(entity);
PropertyInfo[] props = entity.GetType().GetProperties();
foreach (PropertyInfo prop in props)
{
if (prop.GetValue(entity, null) != null)
{
if (prop.GetValue(entity, null).ToString() == " ")
{
dbcontext.Entry(entity).Property(prop.Name).CurrentValue = null;
}
dbcontext.Entry(entity).Property(prop.Name).IsModified = true;
}
}
return(dbTransaction == null?this.Commit() : 0);
}
public int Update(TEntity entity)
{
dbcontext.Set <TEntity>().Attach(entity); //附加上实体
PropertyInfo[] props = entity.GetType().GetProperties();
foreach (PropertyInfo prop in props)
{
if (prop.GetValue(entity, null) != null) //如果参数值不为空
{
if (prop.GetValue(entity, null).ToString() == " ") //如果参数值转为字符串后为空格?!
{
dbcontext.Entry(entity).Property(prop.Name).CurrentValue = null; //转为空引用
}
dbcontext.Entry(entity).Property(prop.Name).IsModified = true; //将此属性设置为已修改
}
}
return(dbcontext.SaveChanges()); //提交保存
}
public int Delete <TEntity>(TEntity entity) where TEntity : class
{
context.Set <TEntity>().Attach(entity);
context.Entry <TEntity>(entity).State = System.Data.Entity.EntityState.Deleted;
return(trans == null?this.Commit() : 0);
}
public int Delete(TEntity entity)
{
context.Set <TEntity>().Attach(entity);
context.Entry(entity).State = System.Data.Entity.EntityState.Deleted;
return(context.SaveChanges());
}