?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 MemberManage_Shopping : System.Web.UI.Page
{
    SqlOperate sqloperate = new SqlOperate();
    SqlConnection sqlconn = new SqlConnection(ConfigurationManager.AppSettings["ConnectionString"]);
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["MName"] == null)
        {
            Response.Write("<script>alert('您還沒有登錄，請登錄后再使用該功能！');</script>");
        }
        if (!IsPostBack)
        {
            string sqlstr = "select OrderID,GoodsName,GoodsTypeName,GoodsPrice from tb_OrderInfo"
                +" where OrderMember='" + Session["MName"].ToString() + "' and IsCheckout='否'";
            gvOrderInfo.DataKeyNames = new string[] { "OrderID" };
            sqloperate.gvDataBind(gvOrderInfo, sqlstr);
            string sqlstrtprice = "select sum(GoodsPrice) as tprice from tb_OrderInfo"
                +" where OrderMember='" + Session["MName"].ToString() + "' and IsCheckout='否'";
            sqlconn.Open();
            SqlDataAdapter myda = new SqlDataAdapter(sqlstrtprice,sqlconn);
            DataSet myds = new DataSet();
            myda.Fill(myds,"tb_OrderInfo");
            DataRowView mydrv=myds.Tables["tb_OrderInfo"].DefaultView[0];
            labMoney.Text = Convert.ToString(mydrv.Row["tprice"]);
        }
    }
    protected void lbtnCheck_Click(object sender, EventArgs e)
    {
        if (labMoney.Text == "")
        {
            Response.Write("<script>alert('您的購物車中沒有任何物品');</script>");
        }
        else
        {
            string sqlstr = "select MemberName,MemberMoney from tb_Member where MemberName='" + Session["MName"].ToString() + "'";
            sqlconn.Open();
            SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlconn);
            DataSet myds = new DataSet();
            myda.Fill(myds, "tb_Member");
            DataRowView mydrv = myds.Tables["tb_Member"].DefaultView[0];
            string MPrice = Convert.ToString(mydrv.Row["MemberMoney"]);
            if (Convert.ToInt32(MPrice) < Convert.ToInt32(labMoney.Text.Trim()))
            {
                Response.Write("<script>alert('您的余額不足，請重新充值后再購買！');</script>");
            }
            else
            {
                string sqlstrshop1 = "update tb_Member set MemberMoney='"
                    + (Convert.ToInt32(MPrice) - Convert.ToInt32(labMoney.Text)) + "' where MemberName='" + Session["MName"].ToString() + "'";
                sqloperate.DataCom(sqlstrshop1);
                string sqlstrshop2 = "update tb_OrderInfo set IsCheckout='是' where OrderMember='" + Session["MName"].ToString() + "'";
                sqloperate.DataCom(sqlstrshop2);
                Response.Redirect("SuccShop.aspx");
            }
        }
    }
    protected void lbtnClear_Click(object sender, EventArgs e)
    {
        string sqlstr = "delete from tb_OrderInfo where OrderMember='" 
            + Session["MName"].ToString() + "' and IsCheckout='否'";
        sqloperate.DataCom(sqlstr);
        Response.Redirect("Shopping.aspx");
    }
    protected void gvOrderInfo_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gvOrderInfo.PageIndex = e.NewPageIndex;
        gvOrderInfo.DataBind();
    }
    protected void gvOrderInfo_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            ((LinkButton)(e.Row.Cells[3].Controls[0])).Attributes.Add("onclick","return confirm('確定要刪除嗎？')");
        }
    }
    protected void gvOrderInfo_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        string sqlstr = "delete from tb_OrderInfo where OrderID='"+gvOrderInfo.DataKeys[e.RowIndex].Value+"'";
        sqloperate.DataCom(sqlstr);
        Response.Redirect("Shopping.aspx");
    }
}