pt_main.cs

此系统开发了一个公交车管理系统。系统根据权限的不同

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace CarManage
{
    public partial class PT_Main : Form
    {
        public PT_Main()
        {
            InitializeComponent();
        }

        private void 个人信息查询ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (this.ActiveMdiChild != null)
            {
                this.ActiveMdiChild.Close(); //关闭已经打开的子窗体 
                PT_Person_Message PTPM = new PT_Person_Message();
                PTPM.MdiParent = this;
                PTPM.Show();
            }
            else
            {
                PT_Person_Message PTPM = new PT_Person_Message();
                PTPM.MdiParent = this;
                PTPM.Show();
            }
        }

        private void 个人公车档案查询ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (this.ActiveMdiChild != null)
            {
                this.ActiveMdiChild.Close(); //关闭已经打开的子窗体 
                PT_Car_Message PTCM = new PT_Car_Message();
                PTCM.MdiParent = this;
                PTCM.Show();
            }
            else
            {
                PT_Car_Message PTCM = new PT_Car_Message();
                PTCM.MdiParent = this;
                PTCM.Show();
            }

        }

        private void 个人修车记录ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (this.ActiveMdiChild != null)
            {
                this.ActiveMdiChild.Close(); //关闭已经打开的子窗体 
                PT_Car_Repair PTCR = new PT_Car_Repair();
                PTCR.MdiParent = this;
                PTCR.Show();
            }
            else
            {
                PT_Car_Repair PTCR = new PT_Car_Repair();
                PTCR.MdiParent = this;
                PTCR.Show();
            }
        }
       private void 个人月票销售记录ToolStripMenuItem_Click_1(object sender, EventArgs e)
        {
            if (this.ActiveMdiChild != null)
            {
                this.ActiveMdiChild.Close(); //关闭已经打开的子窗体 
                PT_Yuepiao PTY = new PT_Yuepiao();
                PTY.MdiParent = this;
                PTY.Show();
            }
            else
            {
                PT_Yuepiao PTY = new PT_Yuepiao();
                PTY.MdiParent = this;
                PTY.Show();
            }
        }

        private void 个人票款和油耗信息ToolStripMenuItem_Click_1(object sender, EventArgs e)
        {
            if (this.ActiveMdiChild != null)
            {
                this.ActiveMdiChild.Close(); //关闭已经打开的子窗体 
                PT_Oil_Ticket POT = new PT_Oil_Ticket();
                POT.MdiParent = this;
                POT.Show();
            }
            else
            {
                PT_Oil_Ticket POT = new PT_Oil_Ticket();
                POT.MdiParent = this;
                POT.Show();
            }
        }
    }
}