using System;
using System.Data;
using System.IO;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using DeiNiu.wms.Logical;
using DeiNiu.Utils;

public partial class Lesson :PageBase
{
    private Llesson _logic;
    protected void Page_Init() 
    {

        PostBackTrigger trigger = new PostBackTrigger();
        trigger.ControlID = Button1.UniqueID;

   //     (Button)pnGridViewProcess.FindControl("btnExcel")).UniqueID.ToString();

     //   (UpdatePanel)(Page.Controls[0].FindControl("UpdatePanel1")).Triggers.Add(trigger);

        ((UpdatePanel)Master.FindControl("UpdatePanel1")).Triggers.Add(trigger);

}

    protected void Page_Load(object sender, EventArgs e)
    {
        
  
        if (!IsPostBack)
        {
            _logic = new Llesson();
            Databound();
        }
        SessionSeting();
    }
 
    /*****************************************   private methods   ******************************************/

    /// <summary>
    /// bound the query list.
    /// </summary>
    private void Databound()
    { 
        //绑定课程分类 
        DataView dvDept = new DataView(_logic.GetAllActivedCategories());
         
      
        TreeDept.SelectedNode.ChildNodes.Clear();
        BindTree(TreeDept.SelectedNode.Value, TreeDept.SelectedNode, dvDept);
        //绑定课程分类树选中的课程分类下的所有课程数据
        DataView dv = TreeDept.SelectedValue != "0" ? new DataView(_logic.GetLessonsByCat(Convert.ToInt32(TreeDept.SelectedValue))) : new DataView(_logic.GetAllActiveData().Tables[0]);
        GridView1.DataSource = dv;
        GridView1.SelectedIndex = -1;
        GridView1.DataBind();
       

        
        UpdateSession();
    //    btnSubmit.Enabled = false;
        ClearDetail();
    }

    private void SessionSeting()
    {
        if (IsPostBack)
        {
            _logic = (Llesson)Session[appScope.PagelevelObj];
        }
    }

    private void UpdateSession()
    {
        Session[appScope.PagelevelObj] = _logic;
    }

    /// <summary>
    /// set data from shift object to page
    /// </summary>
    private void DetailDataBind()
    {
        DataDetail.Visible = true;
        txtName.Text = _logic.GetLesson.le_name;
        txtDesc.Text = _logic.GetLesson.le_desc;
        txtLocation.Text = _logic.GetLesson.le_location;
    //    txtMaster.Text = _logic.GetLesson.le_master;
        txtXunFen.Text = _logic.GetLesson.le_xuefen.ToString();
        txtTrainer.Text = _logic.GetLesson.le_trainer;
    //    txtPasswd.Text = _logic.GetEmployee.em_passwd;
        txtStartDate.Text = _logic.GetLesson.le_startdate;
        txtEndDate.Text = _logic.GetLesson.le_enddate;
      
 
 
    }

    /************************************** protected methods (event listeners) ********************************/

    protected void btnAddnew_Click(object sender, EventArgs e)
    {
        chgOperTxt(true);
        _logic.Initialize();
        ClearDetail();
     //   DetailDataBind();
    }

    protected void DetailsView1_PageIndexChanging(object sender, DetailsViewPageEventArgs e)
    {
    }

    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        chgOperTxt(false);
        if (GridView1.DataKeys != null)
        {
            string id = GridView1.DataKeys[e.NewEditIndex].Value.ToString();
            _logic.Initialize(int.Parse(id));
        }
        Databound();
        DetailDataBind();
    }

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        SetDataBack();
        //shifts id eq 0 means this is new one,to add; else an old one, to update
    
        int oper = 0;
        oper = _logic.GetLesson.ID > 0 ? _logic.GetLesson.Update() : _logic.GetLesson.Add();
        ClearDetail();
        Databound();
        DataDetail.Visible = false;

    }

    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        
        if (GridView1 != null)
        {
            if (GridView1.DataKeys != null)
            {
                string id = GridView1.DataKeys[e.RowIndex].Value.ToString();
                _logic.Initialize(int.Parse(id));
            }
        }

        _logic.GetLesson.Delete();
        ClearDetail();
        Databound();
    }

    protected void GridView1_PageIndexChanged(object sender, EventArgs e)
    {
    }

    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        Databound();

        //GridView1.DataSource = shiftLgc.getAllShifts().Tables[0];
        //     GridView1.DataBind();    
    }

    protected void GridView1_DataBinding(object sender, EventArgs e)
    {
    }

   

    protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
    {
    }

    //reset the page
    protected void btnCancel_Click(object sender, EventArgs e)
    {
        _logic.Initialize();
        Page_Load(this, e);
    }

    /***************************************** internal methods ********************************************/

    /// <summary>
    /// set data from page to shift object
    /// </summary>
    private void SetDataBack()
    {
        //    _logic.GetRole.operater = Session["CurrentUserID"].ToString();  todo: write a public method to handle operater,createtime,lastmodfied ... log info.

       // if (_logic.GetLesson.ID > 0) 
       //{
       //    _logic.GetLesson.last_modified = DateTime.Now.ToString(); 
        
       //}
       _logic.GetLesson.le_category = Convert.ToInt32(TreeDept.SelectedValue);

      
     _logic.GetLesson.le_name =  txtName.Text ;
      _logic.GetLesson.le_desc  =txtDesc.Text ;
      _logic.GetLesson.le_location  =txtLocation.Text ;
       //    txtMaster.Text = _logic.GetLesson.le_master;
   　 _logic.GetLesson.le_xuefen = Convert.ToInt32(txtXunFen.Text);
    　 _logic.GetLesson.le_trainer = txtTrainer.Text;　
      _logic.GetLesson.le_startdate  = txtStartDate.Text;
      _logic.GetLesson.le_enddate =txtEndDate.Text  ;　

    }

    private void chgOperTxt(bool addNew)
    {
        DataDetail.Visible = true;
         
        btnSubmit.Enabled = true;
    }

    private void ClearDetail()
    {
       
        txtName.Text = "";
        txtDesc.Text = "";
        txtLocation.Text = "";
        //    txtMaster.Text = _logic.GetLesson.le_master;
        txtXunFen.Text = "";
        txtTrainer.Text = "";
        //    txtPasswd.Text = _logic.GetEmployee.em_passwd;
        txtStartDate.Text = "";
        txtEndDate.Text = "";
      
    }

    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {
        chgOperTxt(false);
        if (GridView1.DataKeys != null)
        {
            string id = GridView1.DataKeys[GridView1.SelectedIndex].Value.ToString();
            _logic.Initialize(int.Parse(id));
        }
        DetailDataBind();
    }



    public void BindTree(string id, TreeNode pNode, DataView dv)
    {


        dv.RowFilter = "lc_uplevel = '" + id + "'";
        foreach (DataRowView row in dv)
        {
            TreeNode node = new TreeNode();
            node.Text = row["lc_name"].ToString();
            node.Value = row["ID"].ToString();
            if (pNode == null)
            //说明是根节点
            {

                TreeDept.Nodes.Add(node);
                node.Expanded = true;

            }
            else
            {
                pNode.ChildNodes.Add(node);
                node.Expanded = true;

            }
            BindTree(node.Value, node, new DataView(dv.Table));

        }
    }
    protected void TreeDept_SelectedNodeChanged(object sender, EventArgs e)
    {
        GridView1.SelectedIndex = -1;
        DataView dv = new DataView(_logic.GetAllActiveData().Tables[0]);
         if(TreeDept.SelectedValue !="0")
             dv.RowFilter = "le_category = '" + TreeDept.SelectedValue + "'";
        GridView1.DataSource = dv;
        GridView1.DataBind(); 
        ClearDetail();
        DataDetail.Visible = false;
        
    }
   

    
 

//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内
    public override void VerifyRenderingInServerForm(Control control)
    {
    }
    protected void Excel_Click(object sender, EventArgs e)
    {
      
        Master.ScriptMgr.RegisterPostBackControl(this.Button1);
        GridView1.AllowPaging = false;
        GridView1.Columns[GridView1.Columns.Count -1].Visible = false;
        Databound();  
        Export("application/ms-excel", "培训名单.xls");
        GridView1.AllowPaging = false;
        GridView1.Columns[GridView1.Columns.Count-1].Visible = true;
        Databound();  
    }

    private void Export(string FileType, string FileName)
    {

        Response.Charset = "GB2312";
        Response.ContentEncoding = Encoding.UTF7;
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
        Response.ContentType = FileType;
        EnableViewState = false;
        StringWriter tw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(tw);
        GridView1.RenderControl(hw);
        Response.Write(tw.ToString());
        Response.End();
       
    }

   
}