?//文件名:SaleReduceForm.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 SaleManage_SaleReduceForm : System.Web.UI.Page
{
    private static DataTable MyGoodsTable = new DataTable();
    private static int MyID = 0;
    protected void Page_Load(object sender, EventArgs e)
    {
        string MyForbidString = Session["MyForbid"].ToString();
        if (MyForbidString.IndexOf("D2") > 1)
        {
            Server.Transfer("~/SystemManage/AllErrorHelp.aspx");
        }     

        this.Button5.OnClientClick = "return confirm('請檢查銷售退貨商品信息是否正確，一旦新增就無法修改，是否繼續？')";
        this.Button3.OnClientClick = "return confirm('請檢查銷售退貨單信息是否正確，一旦保存就無法修改，是否繼續？')";

    }
    protected void Button1_Click(object sender, EventArgs e)
    {//新增銷售退貨單
        String MySQLConnectionString = ConfigurationManager.ConnectionStrings["MySaleDBConnectionString"].ConnectionString;
        SqlConnection MyConnection = new SqlConnection(MySQLConnectionString);
        MyConnection.Open();
        string MySQL = "Select * From 銷售信息 Where 銷售單號='" + this.TextBox1.Text + "'";
        SqlCommand MyCommand = new SqlCommand(MySQL, MyConnection);
        if (MyCommand.ExecuteScalar() != null)
        {
            this.Page.RegisterStartupScript("msgOnlyAlert", "<script>alert('銷售退貨單號已經存在！')</script>");
            this.TextBox1.Text = "";
        }
        if (MyConnection.State == ConnectionState.Open)
        {
            MyConnection.Close();
        }
        //創建無連接的數據表
        DataColumn[] MyKey = new DataColumn[1];
        MyGoodsTable = new DataTable("商品銷售退貨明細表");
        DataColumn MyColumn = new DataColumn();
        MyColumn.DataType = System.Type.GetType("System.Int16");
        MyColumn.ColumnName = "自編號";
        MyGoodsTable.Columns.Add(MyColumn);
        MyKey[0] = MyColumn;
        MyGoodsTable.PrimaryKey = MyKey;
        MyGoodsTable.Columns.Add("商品編號", System.Type.GetType("System.String"));
        MyGoodsTable.Columns.Add("商品名稱", System.Type.GetType("System.String"));
        MyGoodsTable.Columns.Add("規格型號", System.Type.GetType("System.String"));
        MyGoodsTable.Columns.Add("計量單位", System.Type.GetType("System.String"));
        MyGoodsTable.Columns.Add("商品單價", System.Type.GetType("System.Double"));
        MyGoodsTable.Columns.Add("退貨數量", System.Type.GetType("System.Double"));
        MyGoodsTable.Columns.Add("退貨金額", System.Type.GetType("System.Double"));
        MyGoodsTable.Columns.Add("補充說明", System.Type.GetType("System.String"));
        this.GridView2.DataSource = MyGoodsTable;
        this.GridView2.DataBind();
        MyID = 0;
        this.TextBox2.Text = "0";
    }
    protected void Button3_Click(object sender, EventArgs e)
    {//保存銷售退貨單
        if (this.TextBox2.Text.Length < 2)
            return;
        String MySQLConnectionString = ConfigurationManager.ConnectionStrings["MySaleDBConnectionString"].ConnectionString;
        string MySQL = "INSERT INTO 銷售信息(銷售單號,客戶名稱,應收金額,實收金額,收款方式,經辦人員,出庫日期,補充說明)VALUES('";
        MySQL += this.TextBox1.Text + "','";
        MySQL += this.DropDownList1.SelectedValue.ToString() + "','";
        MySQL += "-" + this.TextBox2.Text + "','";
        MySQL += "-" + this.TextBox3.Text + "','";
        MySQL += this.DropDownList2.SelectedValue.ToString() + "','";
        MySQL += this.TextBox4.Text + "','";
        MySQL += this.TextBox5.Text + "','";
        MySQL += this.TextBox6.Text + "');";
        SqlConnection MyConnection = new SqlConnection(MySQLConnectionString);
        MyConnection.Open();
        SqlCommand MyCommand = MyConnection.CreateCommand();
        MyCommand.CommandText = MySQL;
        MyCommand.ExecuteNonQuery();
        foreach (DataRow MyRow in MyGoodsTable.Rows)
        {
            MySQL = "INSERT INTO 銷售明細(銷售單號,商品編號,商品名稱,規格型號,計量單位,商品單價,銷售數量,銷售金額,補充說明) VALUES('";
            MySQL += this.TextBox1.Text + "','";
            MySQL += MyRow[1].ToString() + "','";
            MySQL += MyRow[2].ToString() + "','";
            MySQL += MyRow[3].ToString() + "','";
            MySQL += MyRow[4].ToString() + "','";
            MySQL += MyRow[5].ToString() + "','";
            MySQL += "-" + MyRow[6].ToString() + "','";
            MySQL += "-" + MyRow[7].ToString() + "','";
            MySQL += MyRow[8].ToString() + "');";
            MySQL += "Update 商品信息 SET 累計銷售量=累計銷售量-" + MyRow[6].ToString() + " WHERE 商品編號='" + MyRow[1].ToString() + "';";
            MyCommand.CommandText = MySQL;
            MyCommand.ExecuteNonQuery();
        }
        if (MyConnection.State == ConnectionState.Open)
        {
            MyConnection.Close();
        }
        this.TextBox1.Text = "";
        MyGoodsTable.Rows.Clear();
        this.GridView2.DataSource = MyGoodsTable;
        this.GridView2.DataBind();
        MyID = 0;
        this.TextBox2.Text = "0";
    }
    protected void Button5_Click(object sender, EventArgs e)
    {//新增退貨商品
         if (this.TextBox13.Text.Length > 1)
        {
            MyID = MyID + 1;
            DataRow MyRow = MyGoodsTable.NewRow();
            MyRow[0] = MyID;
            MyRow["商品編號"] = this.TextBox7.Text;
            MyRow["商品名稱"] = this.TextBox8.Text;
            MyRow["規格型號"] = this.TextBox9.Text;
            MyRow["計量單位"] = this.TextBox10.Text;
            MyRow["商品單價"] = this.TextBox11.Text;
            MyRow["退貨數量"] = this.TextBox12.Text;
            MyRow["退貨金額"] = this.TextBox13.Text;
            MyRow["補充說明"] = this.TextBox15.Text;
            MyGoodsTable.Rows.Add(MyRow);
            this.GridView2.DataSource = MyGoodsTable;
            this.GridView2.DataBind();
            Double My應付金額 = Convert.ToDouble(this.TextBox2.Text);
            My應付金額 += Convert.ToDouble(this.TextBox13.Text);
            this.TextBox2.Text = My應付金額.ToString();
            this.TextBox13.Text = "";
        }
    }
    protected void TextBox12_TextChanged(object sender, EventArgs e)
    {//計算退貨商品金額
        double MyPrice = Convert.ToDouble(this.TextBox11.Text);
        double MyNumber = Convert.ToDouble(this.TextBox12.Text);
        double MyAmount = MyPrice * MyNumber;
        this.TextBox13.Text = MyAmount.ToString();
    }
    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {//顯示選擇的商品信息
        if (this.TextBox1.Text.Length > 1)
        {
            this.TextBox7.Text = this.GridView1.SelectedRow.Cells[1].Text.ToString();
            this.TextBox8.Text = this.GridView1.SelectedRow.Cells[2].Text.ToString();
            this.TextBox9.Text = this.GridView1.SelectedRow.Cells[3].Text.ToString();
            this.TextBox10.Text = this.GridView1.SelectedRow.Cells[4].Text.ToString();
            this.TextBox11.Text = this.GridView1.SelectedRow.Cells[5].Text.ToString();
        }
    }
    public String MyPrint銷售退貨單號
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.TextBox1.Text;
        }
    }
    public String MyPrint客戶名稱
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.DropDownList1.SelectedValue.ToString();
        }
    }
    public String MyPrint應付金額
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.TextBox2.Text;
        }
    }
    public String MyPrint實付金額
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.TextBox3.Text;
        }
    }
    public String MyPrint付款方式
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.DropDownList2.SelectedValue.ToString();
        }
    }
    public String MyPrint經辦人員
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.TextBox4.Text;
        }
    }
    public String MyPrint入庫日期
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.TextBox5.Text;
        }
    }
    public String MyPrint補充說明
    {//設置要傳遞到打印頁的數據
        get
        {
            return this.TextBox6.Text;
        }
    }
    public DataTable MyPrintDataTable
    {//設置要傳遞到打印頁的數據
        get
        {
            return MyGoodsTable;
        }
    }
    protected void Button2_Click(object sender, EventArgs e)
    {//打印商品銷售退貨單
        Server.Transfer("~/SaleManage/SaleReducePrint.aspx");
    }
}