340 lines
10 KiB
C#
340 lines
10 KiB
C#
using System;
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using System.Data;
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using System.Data.OleDb;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Linq;
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using System.Data.Entity.Infrastructure;
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public partial class admin_news_kind_reg : MyWeb.config
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{
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DataTable treeDt = new DataTable();
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const int LevelMax = Model.news.KindLevelMax; //分類層數
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private Model.ezEntities _db = new Model.ezEntities();
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack) {
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BuildTreeView();
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if (!isStrNull(Request["num"]))
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{
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int _num = Val(Request["num"]);
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var prod = _db.news_kind.AsEnumerable().Where(q => q.num == _num).OrderBy(q=>q.kind).FirstOrDefault();
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if (prod != null)
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{
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title_msg.Text = "修改<span class=\"text-primary\">【" + prod.kind + "】</span>的分類名稱";
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item_name.Text = prod.kind;
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demo.Text = prod.demo;
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status.Checked = ValString(prod.status).Equals("Y");
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HiddenField1.Value = prod.kind;
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}
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else
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{
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Response.Redirect(Request.Url.AbsolutePath );
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}
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edit.Visible = true;
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add.Visible = false;
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down_table.Visible = true;
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start.Visible = false;
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}
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else
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{
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status.Checked = true;
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table.Visible = false;
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down_table.Visible = false;
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if (Convert.ToString(Request["msg"]) == "A") { start.Text = "【資料修改成功】"; }
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else if (Convert.ToString(Request["msg"]) == "B") { start.Text = "【資料新增成功】"; }
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else if (Convert.ToString(Request["msg"]) == "C") { start.Text = "【資料刪除成功】"; }
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else { start.Text = "【請點選下方欲新增、修改或刪除的分類】"; }
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}
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}
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}
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#region 建立分類
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protected void TreeTopology()
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{
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MyWeb.sql sql = new MyWeb.sql();
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OleDbConnection sqlConn = sql.conn(db, p_name);
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try
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{
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sqlConn.Open();
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OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
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sqlCmd.CommandText = "SELECT num,kind,root FROM news_kind ORDER BY kind,root, range";
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treeDt = sql.dataTable(sqlCmd);
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}
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catch (Exception ex)
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{
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Response.Write(ex.Message);
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}
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finally
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{
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sqlConn.Close();
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sqlConn.Dispose();
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}
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}
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public void BuildTreeView()
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{
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TreeView2.Nodes.Clear();
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TreeTopology();
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BuildChild(0, TreeView2.Nodes);
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treeDt.Dispose();
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}
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public void BuildChild(int RootUid, TreeNodeCollection Nodes, int Level=1)
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{
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DataTable dt = treeDt;
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foreach (DataRow row in dt.Rows)
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{
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if (row["root"].ToString() == RootUid.ToString())
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{
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TreeNode NewNode = new TreeNode();
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if (Convert.ToString(Request["num"]) == row["num"].ToString() & HiddenField1.Value != "AddMainItem")
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{
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NewNode.Text = "<b><span style=\"color:blue\">" + row["kind"].ToString() + "</span></b>";
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if (Level +1 > LevelMax)
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{
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ImageButton5.Visible = false;
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}
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}
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else
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{
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NewNode.Text = row["kind"].ToString();
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}
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NewNode.NavigateUrl = Request.Url.AbsolutePath + "?num=" + row["num"].ToString() ;
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NewNode.Expand();
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Nodes.Add(NewNode);
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if (Level + 1 <= LevelMax)
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{
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BuildChild((int)row["num"], NewNode.ChildNodes, Level + 1);
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}
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}
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}
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}
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#endregion
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#region 新增分類按鈕事件
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protected void ImageButton5_Click(object sender, EventArgs e)
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{
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title_msg.Text = "於<span class=\"text-primary\">【" + HiddenField1.Value + "】</span>分類下，新增次分類";
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item_name.Text = "";
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demo.Text = "";
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add.Visible = true;
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edit.Visible = false;
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down_table.Visible = false;
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start.Visible = false;
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}
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protected void ImageButton4_Click(object sender, EventArgs e)
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{
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title_msg.Text = "<span class=\"text-primary\">於根目錄下，新增主分類</span>";
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table.Visible = true;
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item_name.Text = "";
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demo.Text = "";
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add.Visible = true;
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edit.Visible = false;
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down_table.Visible = false;
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start.Visible = false;
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status.Checked = true;
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HiddenField1.Value = "AddMainItem";
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BuildTreeView();
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}
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#endregion
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#region 資料修改
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protected void edit_Click(object sender, EventArgs e)
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{
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L_msg.Text = "";
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int _num = Val(Request["num"]);
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try
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{
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Model.news_kind news_kind = _db.news_kind.Where(q => q.num == _num).FirstOrDefault();//修改
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if (news_kind != null)
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{
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news_kind.kind = item_name.Text;
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news_kind.demo = demo.Text;
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news_kind.status = status.Checked ? "Y" : "N";
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_db.SaveChanges();
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Model.admin_log admin_log = new Model.admin_log();
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admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.News, (int)Model.admin_log.Status.Update, "分類：" + item_name.Text);
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L_msg.Type = alert_type.success;
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L_msg.Text = "操作成功";
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}
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else
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{
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L_msg.Type = alert_type.danger;
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L_msg.Text = "無此資料";
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}
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}
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catch (DbUpdateConcurrencyException)
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{
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L_msg.Type = alert_type.danger;
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L_msg.Text = "Error";
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throw;
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}
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BuildTreeView();
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}
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#endregion
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#region 資料新增
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protected void add_Click(object sender, EventArgs e)
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{
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L_msg.Text = "";
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int range = 1;
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int root = 0;
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if (HiddenField1.Value != "AddMainItem")
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{
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root = Convert.ToInt32(Request["num"]);
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}
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try
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{
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var prod = _db.news_kind.AsEnumerable().Where(q => q.root == root).OrderByDescending(q => q.range).FirstOrDefault();
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if (prod != null)
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if (prod.range.HasValue)
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range = prod.range.Value + 1;
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Model.news_kind news_kind = new Model.news_kind();//新增
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news_kind.kind = item_name.Text;
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news_kind.root = root;
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news_kind.range = range;
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news_kind.demo = demo.Text;
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news_kind.status = status.Checked ? "Y" : "N";
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_db.news_kind.Add(news_kind);
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_db.SaveChanges();
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Model.admin_log admin_log = new Model.admin_log();
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admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.News, (int)Model.admin_log.Status.Insert, "分類："+item_name.Text);
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L_msg.Type = alert_type.success;
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L_msg.Text = "操作成功";
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}
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catch (DbUpdateConcurrencyException)
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{
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throw;
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}
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BuildTreeView();
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}
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#endregion
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#region 資料刪除
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protected void ImageButton6_Click(object sender, EventArgs e)
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{
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int num = Val(Request["num"]);
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del_product(num);
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var prod = _db.news_kind.AsEnumerable().Where(q => q.num == num).FirstOrDefault(); //刪除該筆資料
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if (prod != null)
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{
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_db.news_kind.Remove(prod);
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_db.SaveChanges(); //執行
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}
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Del_Ohter_Items(Val(Request["num"]));
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Model.admin_log admin_log = new Model.admin_log();
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admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.News, (int)Model.admin_log.Status.Delete, "分類：" + item_name.Text);
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Response.Redirect(Request.Url.AbsolutePath + "?msg=C");
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}
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public void Del_Ohter_Items(int d_num)
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{
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var prod = _db.news_kind.AsEnumerable().Where(q => q.root == d_num).ToList();
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if (prod.Count > 0)
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{
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foreach (var row in prod)
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{
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del_product(row.num);
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Del_Ohter_Items(row.num);
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}
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//查詢結果全部刪除
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_db.news_kind.RemoveRange(prod);
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_db.SaveChanges();
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}
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}
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public void del_product(int num) //刪除訊息
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{
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//EF Model 資料庫拉關聯 , 故刪除分類前,一定要先刪除訊息,否則關聯會出錯
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var prod = _db.news.AsEnumerable().Where(q => q.kind == num).ToList();
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if (prod.Count > 0)
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{
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////刪除檔案
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//foreach (var item in prod)
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//{
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// var prod2 = _db.news_files.AsEnumerable().Where(q => q.news_id == item.num).ToList();
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// if (prod2.Count > 0)
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// {
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// foreach (var item2 in prod2)
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// {
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// if (!isStrNull(item2.pic1))
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// {
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// MyWeb.fileSystem fileSystem = new MyWeb.fileSystem();
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// fileSystem.Delete(Model.news.Dir + "/" + item2.pic1);
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// }
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// }
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// //查詢結果全部刪除
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// _db.news_files.RemoveRange(prod2);
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// _db.SaveChanges();
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// }
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//}
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////查詢結果全部刪除
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//_db.news.RemoveRange(prod);
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//_db.SaveChanges();
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//改為清空訊息分類
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foreach (var item in prod)
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item.kind = null;
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_db.SaveChanges();
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}
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}
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#endregion
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protected void sortButton_Click(object sender, EventArgs e)
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{
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Response.Redirect("range.aspx");
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}
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} |