frmdepmanager.cs

随着我国市场经济的快速发展

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
using PMS.PMSClass;
namespace PMS
{
    public partial class frmDepManager : Form
    {
        public frmDepManager()
        {
            InitializeComponent();
        }
        DBOperate operate = new DBOperate();
        public TreeNode tn;
        private void frmDepManager_Load(object sender, EventArgs e)
        {
            treeView1.ImageList = imageList1;
            treeView1.ImageIndex = 0;
            treeView1.SelectedImageIndex = 0;
            tn = treeView1.Nodes.Add("所有部门");
            SqlConnection conn = DBConnection.MyConnection();
            conn.Open();
            SqlCommand cmd = new SqlCommand("select * from tb_department", conn);
            SqlDataReader sdr = cmd.ExecuteReader();
            while (sdr.Read())
            {
                tn.Nodes.Add(sdr["DepName"].ToString());
            }
            sdr.Close();
            conn.Close();
            treeView1.ExpandAll();
            treeView1.SelectedNode = treeView1.Nodes[0];//设置窗体加载时，treeview控件的父节点被选中
        }

        private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void 增加ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmAddDep adddep = new frmAddDep();
            adddep.ShowDialog();
        }

        private void frmDepManager_Activated(object sender, EventArgs e)
        {
            treeView1.Nodes.Clear();
            frmDepManager_Load(sender, e);
        }

        private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (treeView1.SelectedNode.Text == "所有部门")
            {
                MessageBox.Show("不能删除根目录", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            else
            {
                if (treeView1.SelectedNode.Text == "部门未分配")
                {
                    MessageBox.Show("不能删除缺省分类", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    return;
                }
                else
                {
                    string depname = treeView1.SelectedNode.Text;
                    string str = "delete from tb_department where DepName='" + depname + "'";
                    if (operate.OperateData(str) > 0)
                    {
                        MessageBox.Show("部门删除成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                    string upstr = "update tb_employee  set employeeDept='部门未分配' where employeeDept='" + depname + "'";
                    operate.OperateData(upstr);
                }
            }
        }

        private void 修改ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (treeView1.SelectedNode.Text == "所有部门")
            {
                MessageBox.Show("不能修改根目录", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            else
            {
                string depName = treeView1.SelectedNode.Text;
                frmChangeDep changedep = new frmChangeDep();
                changedep.name = depName;
                changedep.ShowDialog();
            }
        }
    }
}