Question

enter code here我很难将网络方法传递给标签。我也使用sql将信息传递给label.Can你们都帮帮我吗？

这是我的网络方法。

 public string[] GetCPname(string cpname)
        {
            OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source= C:\\Temp\\StudentsDatabase.mdb");
            conn.Open();

            //Get the ID of the selected book.
            OleDbCommand cmd = new OleDbCommand("SELECT ID FROM Student where Name = @name", conn);
            cmd.Parameters.AddWithValue("@name", cpname);
            OleDbDataReader reader = cmd.ExecuteReader();
            reader.Read();
            int cpNameID = reader.GetInt32(0);

            //Get all the reviews with the Book_ID selected.
            cmd = new OleDbCommand("SELECT CPname FROM StudentInformation where ID = @id", conn);
            cmd.Parameters.AddWithValue("@id", cpNameID);
            reader = cmd.ExecuteReader();

            ArrayList result = new ArrayList();

            while (reader.Read())
            {
                result.Add(reader.GetString(0));
            }
            // Disconnect from DB
            reader.Close();
            conn.Close();
            // Convert ArrayList to string array and return
            return result.ToArray(typeof(string)) as string[];
        }



 This is my coding to pass to the label.


 protected void retrievecpname(string CP)
        {

            StudentsWSRef.StudentsWS ws = new StudentsWSRef.StudentsWS();
            string[] x = ws.GetStudentNames();
            lblcpName.Text = CP;

        }

我遇到了这段代码的问题，因为它仍然没有将信息传递给标签。

Answer 1

请确保问题是否已满？在此方法中，您只需调用WebService方法，然后将Set Some Cp变量设置为Label。我无法得到你想说的话。 GetCPname返回String []，更改Label的文本，我们只需将一些字符串分配给.Text属性。

如何将Web方法传递给标签

1 个答案: