?//文件名:BuyTransferForm.aspx.cs
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.Data.SqlClient;
public partial class BuyManage_BuyTransferForm : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        string MyForbidString = Session["MyForbid"].ToString();
        if (MyForbidString.IndexOf("C5") > 1)
        {
            Server.Transfer("~/SystemManage/AllErrorHelp.aspx");
        }     

        this.Button2.OnClientClick = "return confirm('請檢查采購商品結轉貨款信息是否正確，一旦保存就無法修改，是否繼續？')";
    }
    protected void Button1_Click(object sender, EventArgs e)
    {//新增采購商品貨款結轉單
        String MySQLConnectionString = ConfigurationManager.ConnectionStrings["MySaleDBConnectionString"].ConnectionString;
        SqlConnection MyConnection = new SqlConnection(MySQLConnectionString);
        MyConnection.Open();
        string MySQL = "Select * From 采購信息 Where 采購單號='" + this.TextBox1.Text + "'";
        SqlCommand MyCommand = new SqlCommand(MySQL, MyConnection);
        if (MyCommand.ExecuteScalar() != null)
        {
            this.Page.RegisterStartupScript("msgOnlyAlert", "<script>alert('商品采購貨款結轉單號已經存在！')</script>");
            this.TextBox1.Text = "";
        }
        if (MyConnection.State == ConnectionState.Open)
        {
            MyConnection.Close();
        }
        this.TextBox5.Text = "";
    }
    protected void Button2_Click(object sender, EventArgs e)
    {//保存采購商品貨款結轉單
        if (this.TextBox1.Text == "" || this.TextBox5.Text == "")
            return;
        String MySQLConnectionString = ConfigurationManager.ConnectionStrings["MySaleDBConnectionString"].ConnectionString;
        string MySQL = "INSERT INTO 采購信息(采購單號,客戶名稱,應付金額,實付金額,支付方式,經辦人員,入庫日期,補充說明)VALUES('";
        MySQL += this.TextBox1.Text + "','";
        MySQL += this.TextBox5.Text + "','";
        MySQL += "0','";
        MySQL += this.TextBox3.Text + "','";
        MySQL += "其他','";
        MySQL += this.TextBox4.Text + "','";
        MySQL += this.TextBox2.Text + "','";
        MySQL += this.TextBox7.Text + "');";
        SqlConnection MyConnection = new SqlConnection(MySQLConnectionString);
        MyConnection.Open();
        SqlCommand MyCommand = MyConnection.CreateCommand();
        MyCommand.CommandText = MySQL;
        MyCommand.ExecuteNonQuery();
        if (MyConnection.State == ConnectionState.Open)
        {
            MyConnection.Close();
        }
        this.TextBox1.Text = "";
        this.TextBox5.Text = "";
    }
    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {//顯示客戶的應付金額
        this.TextBox5.Text = this.GridView1.SelectedRow.Cells[1].Text.ToString();
        //獲取應付貨款總額
        SqlConnection MyConnection = new SqlConnection();
        MyConnection.ConnectionString = ConfigurationManager.ConnectionStrings["MySaleDBConnectionString"].ConnectionString;
        MyConnection.Open();
        string MySQL = "Select  SUM(應付賬款) From 采購信息 WHERE 客戶名稱='" + this.GridView1.SelectedRow.Cells[1].Text.ToString() + "'";
        SqlCommand MyCommand = new SqlCommand(MySQL, MyConnection);
        this.TextBox6.Text = MyCommand.ExecuteScalar().ToString();
        if (MyConnection.State == ConnectionState.Open)
        {
            MyConnection.Close();
        }
    }  
}