addbooktype.aspx.cs

一个简单的网上书店

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;
using System.Drawing;
using Model;
using BLL;
using BLL.interfaces;

public partial class addbooktype : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           show(null);
        }
    }

    /// <summary>
    /// 显示树
    /// </summary>
    /// <param name="Pnode"></param>
    void show(TreeNode Pnode)
    {
        IBookType bookTypeMessage = Factory.greatBookType();
        List<BookType> list = new List<BookType>();
        try
        {
            list = (Pnode == null) ? bookTypeMessage.selBookType(0) : bookTypeMessage.selBookType(int.Parse(Pnode.Value));
            foreach (BookType b in list)
            {
                TreeNode node = new TreeNode();
                if (Pnode == null)
                {
                    node.Value = b.Id.ToString();
                    node.Text = b.Name;
                    treebooktype.Nodes.Add(node);
                }
                else 
                {
                    node.Value = b.Id.ToString();
                    node.Text = b.Name;
                    Pnode.ChildNodes.Add(node);
                }
                show(node);
            }
        }
        catch (Exception ex)
        { 
            throw ex;
        }
    }
    /// <summary>
    /// 添加子类
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnAddc_Click(object sender, EventArgs e)
    {
        string newName = txtNewType.Text;
        IBookType bookTypeMes = Factory.greatBookType();
        BookType bookType = new BookType();
        if(newName.Equals(""))
        {
            lblMessage.ForeColor = Color.Red;
            lblMessage.Text = "信息不能为空,请输入类别名!";
            return;
        }
        if (treebooktype.SelectedNode == null)
        {
            lblMessage.ForeColor = Color.Red;
            lblMessage.Text = "请选择父级类别!";
            return;
        }
        else 
        {
            int pid = int.Parse(treebooktype.SelectedValue);
            bookType.Pid = pid;
            int id = bookTypeMes.sel()+ 1;
            bookType.Id = id ;
            bookType.Name =newName;
            try
            {
                if(bookTypeMes.addBookType(bookType))
                {
                    lblMessage.Text = "操作成功!";
                    TreeNode node = new TreeNode();
                    node.Value = id.ToString();
                    node.Text = newName;
                    treebooktype.SelectedNode.ChildNodes.Add(node);
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

    }
    /// <summary>
    /// 添加本级
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnAdd_Click(object sender, EventArgs e)
    {
        string newName = txtNewType.Text;
        if(newName.Equals(""))
        {
            lblMessage.ForeColor = Color.Red;
            lblMessage.Text = "信息不能为空!请输入类别名称";
            return;
        }
        BookType bookType = new BookType();
        int pid = 0;
        if (treebooktype.SelectedNode == null) 
        {
            pid = 0;
        }
        else if (treebooktype.SelectedNode.Parent == null)
        {
            pid = 0;
        }
        else 
        {
            pid = int.Parse(treebooktype.SelectedNode.Parent.Value);
        }
        bookType.Name = newName;
        try
        {
            IBookType bookTypeMes = Factory.greatBookType();
            int id=bookTypeMes.sel()+1;
            bookType.Id = id;
            bookType.Pid = pid;
            if(bookTypeMes.addBookType(bookType))
            {
                lblMessage.Text = "添加成功!";
                TreeNode node = new TreeNode();
                node.Value = id.ToString();;
                node.Text = newName;
                if (pid == 0)
                {
                    treebooktype.Nodes.Add(node);
                }
                else 
                {
                    treebooktype.SelectedNode.Parent.ChildNodes.Add(node);
                }    
            }
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }
    protected void treebooktype_SelectedNodeChanged(object sender, EventArgs e)
    {
        txtxz.Text = treebooktype.SelectedNode.Text;
    }

    /// <summary>
    /// 修改
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void update_Click(object sender, EventArgs e)
    {
        string name = txtNewType.Text;
        if (name.Equals("")) 
        {
            lblMessage.ForeColor = Color.Red;
            lblMessage.Text = "不能为空!";
            return;
        }
        if(treebooktype.SelectedNode==null)
        {
            lblMessage.ForeColor = Color.Red;
            lblMessage.Text = "请选择要修改的类别!";
            return;
        }

        try
        {
            IBookType bookTypeMes = Factory.greatBookType();
            BookType bookType = new BookType();
            int id=int.Parse(treebooktype.SelectedValue);
            bookType.Id =id;
            bookType.Name = name;
            if (bookTypeMes.updateBook(bookType))
            {
                lblMessage.Text = "修改成功!";
                treebooktype.SelectedNode.Text = name;
            }
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }
    /// <summary>
    /// 删除
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btndel_Click(object sender, EventArgs e)
    {
        if (treebooktype.SelectedNode == null)
        {
            lblMessage.ForeColor = Color.Red;
            lblMessage.Text = "请选择要删除的类别!";
            return;
        }

        try
        {
            IBookType bookTypeMes = Factory.greatBookType();
            int id = int.Parse(treebooktype.SelectedValue);
            if (bookTypeMes.delBookType(id))
            {
                lblMessage.Text = "删除成功!";
                treebooktype.Nodes.Remove(treebooktype.SelectedNode);
            }
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

}