tenementpanel.cs

社区管理系统

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

namespace TenementLibrary
{
    public partial class TenementPanel : UserControl
    {
        private DataBaseManager DBManager;
        private Int64 ID,ID2, insertID,insertID2;
        private int selectedIndex,selectedIndex2;

        public TenementPanel()
        {
            InitializeComponent();
            //String SqlConnectInfo = "server=localhost;database=CommnityManagementSystem;uid=sa;pwd=''";
            //DBManager = new DataBaseManager(SqlConnectInfo);
            reset();
            reset2();
        }

        public void visilize()
        {
            reset();    //将各个控件置为初始状态
            reset2();
            this.Visible = true;
        }

        public void disVisilize()
        {
            this.Visible = false;
        }

        public void setDataBaseManager(DataBaseManager DBManager)
        {
            this.DBManager = DBManager;
        }

        private bool ErrorMessage(String msg)
        {
            MessageBox.Show(msg);
            return false;
        }

        private void dataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex == -1 || e.RowIndex >= dataGridView.Rows.Count - 1) return; //选择多行或选择列标签
            showDetailInfo(e.RowIndex);
            selectedIndex = e.RowIndex;
        }

        private void bSearch_Click(object sender, EventArgs e)
        {
            String cmd;
            if (checkInput("Select") == false) return;  //用户输入不合法
            cmd = generateSelectCommand();    //根据输入情况生成相应的命令

            DataTable dataTable = DBManager.ExecuteSelectCommand(cmd);
            if (dataTable == null)
            {  //数据库出错
                MessageBox.Show(DBManager.errorMessage);
                return;
            }
            else if (dataTable.Rows.Count == 0)
            {//没有搜索到对应信息,显示一个空的DataGridView
                dataGridView.DataSource = dataTable;
                return;
            }
            else
            {//至少找到一条信息，将信息显示到DataGridView，并将第一条信息详细列出
                dataGridView.DataSource = dataTable;
                showDetailInfo(0);
            }
        }

        private void bDelete_Click(object sender, EventArgs e)
        {
            String cmd = generateDeleteCommand();
            int affectRows = DBManager.Execute(cmd);
            if (affectRows == -1)
            {  //数据库出错
                MessageBox.Show(DBManager.errorMessage);
                return;
            }
            else if (affectRows == 0)
            {
                MessageBox.Show("此数据已被其他登陆用户删除");
            }
            if (selectedIndex == dataGridView.Rows.Count - 2)
            {
                dataGridView.Rows.Remove(dataGridView.Rows[selectedIndex]);
                selectedIndex--;
                if (selectedIndex == -1)
                {//若DataGridView没有数据则重置界面
                    reset();
                    return;
                }
            }
            else dataGridView.Rows.Remove(dataGridView.Rows[selectedIndex]);
            showDetailInfo(selectedIndex);
        }

        private void searchTenementInfo(Int64 i) {
            String cmd;
            cmd = String.Format("Select 住户编号,小区编号,楼芋编号,单元编号,房间编号,户主姓名,性别 from 住户信息 where 住户编号='{0}'",i);    //根据输入情况生成相应的命令

            DataTable dataTable = DBManager.ExecuteSelectCommand(cmd);
            if (dataTable == null)
            {  //数据库出错
                MessageBox.Show(DBManager.errorMessage);
                return;
            }
            else if (dataTable.Rows.Count == 0)
            {//没有搜索到对应信息,显示一个空的DataGridView
                dataGridView.DataSource = dataTable;
                return;
            }
            else
            {//至少找到一条信息，将信息显示到DataGridView，并将第一条信息详细列出
                dataGridView.DataSource = dataTable;
                showDetailInfo(0);
            }
        }
        /////////////////////////////////////////////////////////////////////////////////////////////
        private void bAdd_Click(object sender, EventArgs e)
        {
            String cmd;
            if (checkInput("Insert") == false) return;//用户输入错误

            cmd = generateSelectCommand();    //首先查找数据库中有没有相同内容的行
            DataTable dataTable = DBManager.ExecuteSelectCommand(cmd);
            if (dataTable == null)
            {  //数据库出错
                MessageBox.Show(DBManager.errorMessage);
                return;
            }
            else if (dataTable.Rows.Count > 0)
            {
                MessageBox.Show("数据库中已存在相同信息");
                return;
            }

            //将信息添加到数据库
            cmd = generateInsertCommand();    //根据输入情况生成相应的命令

            int affectedRows = DBManager.Execute(cmd);

            if (affectedRows == -1)
            {  //数据库出错
                MessageBox.Show(DBManager.errorMessage);
                return;
            }
            else if (affectedRows == 0)
            {//
                MessageBox.Show("插入失败");
                return;
            }
            else
            {//插入成功，
                showDetailInfo(selectedIndex);//显示插入前的一行

                /*DataRow row = new DataRow();
                row.set
                row.ItemArray={insertDealID,tbName.Text};
                DataGridViewCell[] cell = new DataGridViewCell[6];
                for (int i = 0; i < 6; i++) cell[i] = new DataGridViewCell();
                row.Cells = cell;
                row.Cells[0].Value=insertDealID;
                row.Cells[1].Value=tbName.Text;
                row.Cells[2].Value=cbSex.Text;
                row.Cells[3].Value=int.Parse(tbAge.Text);
                row.Cells[4].Value=tbWork.Text;
                row.Cells[5].Value=cbPreferedCategory.Text;
                row.Cells[6].Value=tbPreferedArea.Text;

                dataGridView.Rows.Add(row);
                int idx = dataGridView.Rows.IndexOf(row);
                selectedIndex = idx;
                showDetailInfo(idx);
              */
            }
        }

        private void reset()
        {
            ID = 0;
            selectedIndex = -1;
            bModify.Enabled = false;
            bDelete.Enabled = false;
            button5.Enabled = false;
            tbXiaoQuBianHao.Text = "";
            tbBuildNum.Text = "";
            tbUnitNum.Text = "";
            tbRoomNum.Text = "";
            tbOwnerName.Text = "";
            tbOwnerSex.Text = "";
            tbOwnerTel.Text = "";
            tbOwnerWork.Text = "";
        }

        private void bModify_Click(object sender, EventArgs e)
        {
            String cmd;
            if (checkInput("Modify") == false) return;  //用户输入不合法
            cmd = generateUpdateCommand();    //根据输入情况生成相应的命令

            int affectRows = DBManager.Execute(cmd);
            if (affectRows == -1)
            {  //数据库出错
                MessageBox.Show(DBManager.errorMessage);
                return;
            }
            else if (affectRows == 0)
            {//没有搜索到对应信息
                MessageBox.Show("信息可能已被其他用户删除");
                return;
            }
            else
            {//成功修改,更新DataGridView
                DataGridViewRow row = dataGridView.Rows[selectedIndex];
                row.Cells["小区编号"].Value = tbXiaoQuBianHao.Text;
                row.Cells["楼芋编号"].Value = tbBuildNum.Text;
                row.Cells["单元编号"].Value = tbUnitNum.Text;
                row.Cells["房间编号"].Value = tbRoomNum.Text;
                row.Cells["户主姓名"].Value = tbOwnerName.Text;
                row.Cells["性别"].Value = tbOwnerSex.Text;
            }
        }

        private void showDetailInfo(int idx)
        {
            if (idx < 0) return;
            selectedIndex = idx;
            ID = (Int64)dataGridView.Rows[idx].Cells["住户编号"].Value;//得到用户选择的行的主键
            DataTable dt = DBManager.ExecuteSelectCommand(String.Format("select * from 住户信息 where 住户编号='{0}'", ID));
            if (dt == null)
            {//数据库错误
                MessageBox.Show(DBManager.errorMessage);
                ID = 0;
                return;
            }
            else if (dt.Rows.Count == 0)
            {  //未找到此记录
                MessageBox.Show("此记录可能已被其他用户删除");
                ID = 0;
                return;
            }

            tbOwnerName.Text = (String)dt.Rows[0]["户主姓名"];
            tbOwnerSex.Text = (String)dt.Rows[0]["性别"];
            tbOwnerTel.Text = (Int64)dt.Rows[0]["宅电1"]+"";  //用这种方式将数字转换成字符串
            tbOwnerWork.Text = (String)dt.Rows[0]["工作单位"];
            tbXiaoQuBianHao.Text = (Int64)dt.Rows[0]["小区编号"]+"";
            tbBuildNum.Text = (Int64)dt.Rows[0]["楼芋编号"]+"";
            tbUnitNum.Text = (Int64)dt.Rows[0]["单元编号"]+"";
            tbRoomNum.Text = (Int64)dt.Rows[0]["房间编号"]+"";