advertisementform.cs

数据库开发房产中介管理系统 VC2005开发环境SQL2005版本

//文件名：AdvertisementForm.cs
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;

namespace MyHouse
{
    public partial class AdvertisementForm : Form
    {
        public AdvertisementForm()
        {
            InitializeComponent();
        }

        private void 广告发布管理BindingNavigatorSaveItem_Click(object sender, EventArgs e)
        {
            this.Validate();
            this.广告发布管理BindingSource.EndEdit();
            this.广告发布管理TableAdapter.Update(this.myHouseDataSet.广告发布管理);

        }

        private void AdvertisementForm_Load(object sender, EventArgs e)
        {
            // TODO: 这行代码将数据加载到表“myHouseDataSet.广告发布管理”中。您可以根据需要移动或移除它。
            this.广告发布管理TableAdapter.Fill(this.myHouseDataSet.广告发布管理);

        }

        private void bindingNavigatorAddNewItem_Click(object sender, EventArgs e)
        {
            //自动计算自编号            
            String MySQLConnectionString = global::MyHouse.Properties.Settings.Default.MyHouseConnectionString;
            SqlConnection MyConnection = new SqlConnection(MySQLConnectionString);
            MyConnection.Open();
            string MySQL = "Select max(自编号) 自编号 From 广告发布管理";
            SqlCommand MyCommand = new SqlCommand(MySQL, MyConnection);
            object MyResult = MyCommand.ExecuteScalar();
            Int64 MyID = 1;
            if (MyResult != System.DBNull.Value)
            {
                String MyMaxID = MyResult.ToString().Trim();
                MyMaxID = MyMaxID.Substring(2, MyMaxID.Length - 2);
                MyID = Convert.ToInt64(MyMaxID) + 1;
            }
            int MyLength = MyID.ToString().Length;
            string MyNewID = "";
            switch (MyLength)
            {
                case 1:
                    MyNewID = "GG0000000" + MyID.ToString();
                    break;
                case 2:
                    MyNewID = "GG000000" + MyID.ToString();
                    break;
                case 3:
                    MyNewID = "GG00000" + MyID.ToString();
                    break;
                case 4:
                    MyNewID = "GG0000" + MyID.ToString();
                    break;
                case 5:
                    MyNewID = "GG000" + MyID.ToString();
                    break;
                case 6:
                    MyNewID = "GG00" + MyID.ToString();
                    break;
                case 7:
                    MyNewID = "GG0" + MyID.ToString();
                    break;
            }
            this.自编号TextBox.Text = MyNewID;
        }

        private void 查询ToolStripButton_Click(object sender, EventArgs e)
        {
            try
            {
                this.广告发布管理TableAdapter.FillBy(this.myHouseDataSet.广告发布管理, 资料编号ToolStripTextBox.Text, 经办人ToolStripTextBox.Text);
            }
            catch (System.Exception ex)
            {
                System.Windows.Forms.MessageBox.Show(ex.Message);
            }
        }
    }
}