SCPFWBTL/SCP/Admin/power.aspx.cs

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Linq;
using System.Data.Entity;
using CK.SCP.Models.AppBoxEntity;
using FineUI;
using EntityFramework.Extensions;

namespace SCP.admin
{
    public partial class power : PageBase
    {
        #region ViewPower

        /// <summary>
        /// 本页面的浏览权限，空字符串表示本页面不受权限控制
        /// </summary>
        public override string ViewPower
        {
            get
            {
                return "CorePowerView";
            }
        }

        #endregion

        #region Page_Load

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                LoadData();
            }
        }

        private void LoadData()
        {
            // 权限检查
            CheckPowerWithButton("CorePowerNew", btnNew);
            //CheckPowerDeleteWithButton(btnDeleteSelected);

            //ResolveDeleteButtonForGrid(btnDeleteSelected, Grid1);

            btnNew.OnClientClick = Window1.GetShowReference("~/admin/power_new.aspx", "新增权限");

            
            // 每页记录数
            Grid1.PageSize = ConfigHelper.PageSize;
            ddlGridPageSize.SelectedValue = ConfigHelper.PageSize.ToString();

            
            BindGrid();
        }

        private void BindGrid()
        {
            IQueryable<Power> q = DB.Powers;

            // 在权限名称中搜索
            string searchText = ttbSearchMessage.Text.Trim();
            if (!String.IsNullOrEmpty(searchText))
            {
                q = q.Where(p => p.Name.Contains(searchText) || p.Title.Contains(searchText));
            }

            // 在查询添加之后，排序和分页之前获取总记录数
            Grid1.RecordCount = q.Count();

            // 排列和数据库分页
            q = SortAndPage<Power>(q, Grid1);

            Grid1.DataSource = q;
            Grid1.DataBind();
        }

        #endregion

        #region Events

        protected void ttbSearchMessage_Trigger2Click(object sender, EventArgs e)
        {
            ttbSearchMessage.ShowTrigger1 = true;
            BindGrid();
        }

        protected void ttbSearchMessage_Trigger1Click(object sender, EventArgs e)
        {
            ttbSearchMessage.Text = String.Empty;
            ttbSearchMessage.ShowTrigger1 = false;
            BindGrid();
        }

        protected void Grid1_PreDataBound(object sender, EventArgs e)
        {
            // 数据绑定之前，进行权限检查
            CheckPowerWithWindowField("CorePowerEdit", Grid1, "editField");
            CheckPowerWithLinkButtonField("CorePowerDelete", Grid1, "deleteField");
        }

        protected void Grid1_Sort(object sender, GridSortEventArgs e)
        {
			Grid1.SortDirection = e.SortDirection;
            Grid1.SortField = e.SortField;
            BindGrid();
        }

        protected void Grid1_PageIndexChange(object sender, GridPageEventArgs e)
        {
            Grid1.PageIndex = e.NewPageIndex;
            BindGrid();
        }

        protected void Grid1_RowCommand(object sender, GridCommandEventArgs e)
        {
            int powerID = GetSelectedDataKeyID(Grid1);

            if (e.CommandName == "Delete")
            {
                // 在操作之前进行权限检查
                if (!CheckPower("CorePowerDelete"))
                {
                    CheckPowerFailWithAlert();
                    return;
                }

                int roleCount = DB.Roles.Where(r => r.Powers.Any(p => p.ID == powerID)).Count();
                if (roleCount > 0)
                {
                    Alert.ShowInTop("删除失败！需要先清空使用此权限的角色！");
                    return;
                }

                // 执行数据库操作
                DB.Powers.Where(r => r.ID == powerID).Delete();

                BindGrid();
            }
        }


        //protected void btnDeleteSelected_Click(object sender, EventArgs e)
        //{
        //    // 在操作之前进行权限检查
        //    if (!CheckPower("CorePowerDelete"))
        //    {
        //        CheckPowerFailWithAlert();
        //        return;
        //    }

        //    // 从每个选中的行中获取ID（在Grid1中定义的DataKeyNames）
        //    List<int> ids = GetSelectedDataKeyIDs(Grid1);


        //    int roleCount = DB.Roles.Where(r => r.Powers.Any(p => ids.Contains(p.ID))).Count();
        //    if (roleCount > 0)
        //    {
        //        Alert.ShowInTop("删除失败！需要先清空使用此权限的角色！");
        //        return;
        //    }

        //    // 执行数据库操作
        //    DB.Powers.Delete(p => ids.Contains(p.ID));


        //    // 重新绑定表格
        //    BindGrid();
        //}


        protected void Window1_Close(object sender, EventArgs e)
        {
            BindGrid();
        }

        protected void ddlGridPageSize_SelectedIndexChanged(object sender, EventArgs e)
        {
            Grid1.PageSize = Convert.ToInt32(ddlGridPageSize.SelectedValue);

            BindGrid();
        }

        #endregion

    }
}