大家可以帮我看看这段代码有什么错吗？为什么一直报找不到tables 0
public partial class gouwuche : System.Web.UI.Page
{
DataTable cart;
Double TtlPrice;
BLL.goods goodsbll = new BLL.goods();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
Image9.Visible = false;
LabMessage.Visible = false;
shoplist();
}
}
protected void shoplist()
{
Hashtable Hash;
if (Session["car"] == null)
{
Hash = new Hashtable();
}
else
{
Hash = (Hashtable)Session["car"];
}
if (Hash.Count == 0)
{
Image9.Visible = true;
LabMessage.Visible = true;
LabMessage.Text = "您还没有购物呢？赶快购物吧!";
}
string[] ArrKey = new string[Hash.Count];
int[] ArrVal = new int[Hash.Count];
string Goods = "('";
Hash.Keys.CopyTo(ArrKey, 0);
Hash.Values.CopyTo(ArrVal, 0);
int k = 0;
for (int j = 0; j < ArrKey.Length; j++)
{
if (k > 0) Goods += "','"; k++;
Goods += ArrKey.GetValue(j).ToString();
}
Goods += "')";
DataSet ds = goods.GetList("G_No in" + Goods);
DataTable Table1 = new DataTable();
Table1 = ds.Tables[0] ;
//Table1 = ds.Tables["Goods"];
Table1.Columns.Add(new DataColumn("Number", System.Type.GetType("System.Int32")));
DataColumn[] Keys = { Table1.Columns["ID"] };
Table1.PrimaryKey = Keys;
foreach (string X in Hash.Keys)
{
Table1.Rows.Find(X)["Number"] = Hash[X];
}
Table1.Columns.Add(new DataColumn("Label1", System.Type.GetType("System.Double"), "price*Number"));
for (int I = 0; I < Table1.Rows.Count; I++)
{
TtlPrice += Convert.ToDouble(Table1.Rows[I]["price"]);
}
Label1.Text = TtlPrice.ToString();
Session["Total"] = Label1.Text.ToString();
GridView2.DataSource = Table1.DefaultView;
GridView2.DataBind();
}
protected void GridView2_RowCommand(object sender, GridViewCommandEventArgs e)
{
Hashtable Hash;
if (Session["car"] == null)
{
Hash = new Hashtable();
}
else
{
Hash = (Hashtable)Session["car"];
}
if (Hash.ContainsKey(e.CommandArgument))
{
Hash.Remove(e.CommandArgument);
}
LabMessage.Text = (string)e.CommandArgument;
Session["car"] = Hash;
shoplist();
}
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
Response.Redirect("default.aspx");
}
protected void ImageButton5_Click(object sender, ImageClickEventArgs e)
{
if (GridView2.Rows.Count == 0)
{
LTP.Common.MessageBox.Show(this, "请先购物!");
// Page.RegisterClientScriptBlock("e", "<script>alert('请先购物!')</script>");
}
else if (Session["username"] == null)
{
ScriptManager.RegisterStartupScript(this.ImageButton5, this.GetType(), "alertScript", "window.open('ssnotice.aspx');", true);
//Response.Write("<script>alert('请先登录!');location.href='denglu.aspx'</script>");
// Server.Transfer("userlogin.aspx");
}
else
{
Response.Redirect("pay1.aspx");
}
}
}
[解决办法]
goods.GetList能得到正确的datatable吗，检查代码
[解决办法]
一步步调试，自己看下数据
[解决办法]
DataSet ds = goods.GetList("G_No in" + Goods);
[解决办法]
DataSet ds = goods.GetList("G_No in" + Goods);
这个取数据的格式写的好像有问题吧
[解决办法]
这代码表示压力山大，
[解决办法]
解决了，不错。
[解决办法]