/// <summary>
/// 添加新菜单
/// </summary>
/// <param name="data"></param>
/// <param name="resultMsg"></param>
/// <returns></returns>
public override bool AddMenu(Menu data, ref string resultMsg)
{
try
{
using (MyMenuContext context = new MyMenuContext())
{
var dbData = context.Menus.Find(data.MenuCode);
if (dbData != null)
{
resultMsg = String.Format("代码为 {0} 的数据已存在！", data.MenuCode);
return(false);
}
if (String.IsNullOrEmpty(data.ParentMenuCode))
{
// 根节点的 父节点为空.
data.ParentMenuCode = null;
}
context.Menus.Add(data);
// 物理保存.
context.SaveChanges();
return(true);
}
}
catch (Exception ex)
{
resultMsg = ex.Message;
return(false);
}
}
/// <summary>
/// 编辑菜单.
/// </summary>
/// <param name="data"></param>
/// <param name="resultMsg"></param>
/// <returns></returns>
public override bool EditMenu(Menu data, ref string resultMsg)
{
try
{
using (MyMenuContext context = new MyMenuContext())
{
var dbData = context.Menus.Find(data.MenuCode);
if (dbData == null)
{
resultMsg = String.Format("代码为 {0} 的数据不存在！", data.MenuCode);
return(false);
}
// 父节点.
dbData.ParentMenuCode = data.ParentMenuCode;
if (String.IsNullOrEmpty(dbData.ParentMenuCode))
{
// 根节点的 父节点为空.
dbData.ParentMenuCode = null;
}
// 显示顺序.
dbData.DisplayIndex = data.DisplayIndex;
// 菜单文本.
dbData.MenuText = data.MenuText;
// 描述.
dbData.MenuDesc = data.MenuDesc;
// 扩展信息.
dbData.MenuExpand = data.MenuExpand;
// 物理保存.
context.SaveChanges();
return(true);
}
}
catch (Exception ex)
{
resultMsg = ex.Message;
return(false);
}
}
/// <summary>
/// 删除菜单.
/// </summary>
/// <param name="menuCode"></param>
/// <param name="resultMsg"></param>
/// <returns></returns>
public override bool RemoveMenu(string menuCode, ref string resultMsg)
{
try
{
using (MyMenuContext context = new MyMenuContext())
{
var dbData = context.Menus.Find(menuCode);
if (dbData == null)
{
resultMsg = String.Format("代码为 {0} 的数据不存在！", menuCode);
return(false);
}
// 判断当前菜单， 是否有子菜单.
if (dbData.SubMenus.Count() > 0)
{
foreach (var subMenu in dbData.SubMenus)
{
// 子节点的父节点 = 当前被删除节点的父节点.
subMenu.ParentMenuCode = dbData.ParentMenuCode;
}
}
// 删除.
context.Menus.Remove(dbData);
// 物理保存.
context.SaveChanges();
return(true);
}
}
catch (Exception ex)
{
resultMsg = ex.Message;
return(false);
}
}
