我收到了错误:
指定的演员表无效。
我需要重复每个用户已经从数据库评级星级如何从db获得评级。这里是如何从数据库中获取评级。
这是存储过程:
ALTER PROCEDURE [dbo].[sp_comments]
(
@eid int
)
AS
BEGIN
declare @sql varchar(max)
SET NOCOUNT ON;
select @sql='select g.username,dbo.fn_username(g.updation) as updation,
c.comment_id,c.id,c.comments,c.commented_by,c.mail,c.date,c.rating_star
from comments c
inner join tbl_data as g on g.id=c.id
WHERE c.id=''' +CONVERT(VARCHAR(50),@eid) +''' order by comment_id desc'
exec(@sql)
print(@sql)
END
这是我的asp.net设计页面:
<asp:Rating ID="user_rating" runat="server" CurrentRating='<%#Eval("rating_star")%>' RatingDirection="LeftToRightTopToBottom" StarCssClass="ratingStar" WaitingStarCssClass="SavedRatingStar" FilledStarCssClass="FilledRatingStar"
EmptyStarCssClass="EmptyRatingStar" AutoPostBack="true"></asp:Rating>
这是后面的代码 - 页面的C#
protected void Button1_Click(object sender, EventArgs e)
{
if (Request.QueryString["id"] != null)
{
int id;
id = Convert.ToInt32(Request.QueryString["id"].ToString());
con = new SqlConnection(str);
con.Open();
cmd = new SqlCommand("sp_usercomment", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@mail", mail_by.Text);
cmd.Parameters.AddWithValue("@comments", comments.Text);
cmd.Parameters.AddWithValue("@name", name_by.Text);
cmd.Parameters.AddWithValue("@updated_name", Convert.ToInt32(Request.Cookies["userid"].Value));
cmd.Parameters.AddWithValue("@eid",id);
cmd.Parameters.AddWithValue("@rating",SqlDbType.Int).Value=rating.CurrentRating;
cmd.ExecuteNonQuery();
con.Close();
Label2.Visible = true;
Label2.Text = "Thanks for your valuable feedback";
mail_by.Text = "";
comments.Text = "";
name_by.Text= "";
getcomments();
}
}
void getcomments()
{
con = new SqlConnection(str);
con.Open();
cmd = new SqlCommand("sp_comments", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@eid", Request.QueryString["id"].ToString()));
da=new SqlDataAdapter(cmd);
dt = new DataTable();
da.Fill(dt);
con.Close();
comment_label.Text = "View " + dt.Rows.Count.ToString() + " Comments";
if (dt.Rows.Count > 0)
{
DataRow dr=dt.Rows[0];
repeat.DataSource = dt.DefaultView;
repeat.DataBind();
review_panel.Visible = true;
product = dr["username"].ToString();
}
else
{
review_panel.Visible = false;
}
}
答案 0 :(得分:0)
试试这个,
con = new SqlConnection(str);
con.Open();
cmd = new SqlCommand("sp_comments", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@eid",Request.QueryString["id"].ToString()));
da=new SqlDataAdapter(cmd);
dt = new DataTable();
da.Fill(dt);
con.Close();
DataTable dtCloned = dt.Clone();
dtCloned.Columns[3].DataType = typeof(Int32);
foreach (DataRow row in dt.Rows)
{
dtCloned.ImportRow(row);
}
repeat.DataSource = dtCloned;
repeat.DataBind();
注意:dtCloned.Columns中的“3”[3] .DataType将是您的数据表中的rating_star列的列号。