CS程序中基于菜单和工具栏的权限设计

权限管理几乎是任何系统都有的，有的权限较简单，而有的权限比较复杂，下面的这种方法是控制模块权限的一种常用方法，

用户管理：右边的功能列表是所有子菜单的Text属性，使用的是(CheckedListBox)。

基本方法是这样的：权限表中存储权限（子菜单的Text属性的值），用户表中存储登录系统的用户，
权限表存储用户对应的所有权限（用0和1来表示是否有访问的权限）。

设置权限之后登录的效果图如下所示，没有打勾的选项都变成了灰色不可用状态。

  


  主窗体一加载的时候，取出所有子菜单对象：

List < ToolStripMenuItem >  list  =   new  List < ToolStripMenuItem > ();

             // 取出所有子菜单，添加到集合
             for  ( int  i  =   0 ; i  <   this .menu.Items.Count; i ++ )
             {
                ToolStripDropDownItem menuItems = (ToolStripDropDownItem)menu.Items[i];
                if (menuItems.HasDropDownItems)
                {
                    for (int k = 0; k < menuItems.DropDownItems.Count; k++)
                    {
                        list.Add((ToolStripMenuItem)menuItems.DropDownItems[k]);
                    }
                }
            }
        }

取出用户对应的权限，和刚才取出的菜单对比，没有权限的就禁用掉。

  // 读取相应的权限
                DataSet ds  =  UR.LaodUsersRight(Share.UserID);

                 if  ( ! DataHelper.IsNullDataSet(ds))
                 {
                    DataTable dt = ds.Tables[0];

                    if (!DataHelper.IsNullDataTable(dt))
                    {
                        for (int i = 0; i < dt.Rows.Count; i++)
                        {
                            for (int j = 0; j < list.Count; j++)
                            {
                                if (dt.Rows[i]["IsOk"].ToString() == "True")
                                {
                                    if (dt.Rows[i]["RightName"].ToString() == list[j].Text)
                                    {
                                        list[j].Enabled = true;
                                        break;
                                    }
                                }
                                else
                                {
                                    if (dt.Rows[i]["RightName"].ToString() == list[j].Text)
                                    {
                                        list[j].Enabled = false;
                                        break;
                                    }
                                }
                            }
                        }

                        //遍历所有的工具栏
                        for (int k = 0; k < this.toolStrip1.Items.Count; k++)
                        {
                            for (int z = 0; z < dt.Rows.Count; z++)
                            {
                                if (dt.Rows[z]["IsOk"].ToString() == "True")
                                {
                                    if (toolStrip1.Items[k].Text.Trim() == dt.Rows[z]["RightName"].ToString())
                                    {
                                        toolStrip1.Items[k].Enabled = true;
                                        break;
                                    }
                                }
                                else
                                {
                                    if (toolStrip1.Items[k].Text.Trim() == dt.Rows[z]["RightName"].ToString())
                                    {
                                        toolStrip1.Items[k].Enabled = false;
                                        break;
                                    }
                                }
                            }
                        }
                    }
                    else
                    {
                        this.menu.Enabled = false;
                        this.toolStrip1.Enabled = false;
                    }

                }
                 else
                 {
                    this.menu.Enabled = false;
                    this.toolStrip1.Enabled = false;
                }

下面是关于CheckedListBox的部分代码：

    private   void  cklb_Function_ItemCheck( object  sender, ItemCheckEventArgs e)
         {
            try
            {

                string uid = dgv_Users.SelectedRows[0].Cells["操作员"].Value.ToString();
                string rid = cklb_Function.SelectedValue.ToString();
                if (Convert.ToBoolean(e.CurrentValue))
                {
                    ur.UpdateUserRight(uid, rid, false);
                }
                else
                {
                    ur.UpdateUserRight(uid, rid, true);
                }

            }
            catch (Exception ex)
            {
                MsgBox.Error(ex.Message);
            }
        }

全选和全删

  private   void  btn_AllSelect_Click( object  sender, EventArgs e)
         {
            for (int i = 0; i < cklb_Function.Items.Count; i++)
            {
                cklb_Function.SetItemChecked(i, true);
            }
        }

         private   void  btn_AllDel_Click( object  sender, EventArgs e)
         {
            for (int i = 0; i < cklb_Function.Items.Count; i++)
            {
                cklb_Function.SetItemChecked(i, false);
            }
        }