的GridView不會與自定義連接字符串和自定義數據源

Question

我已經建立了一個用戶自定義的連接字符串填充和現在正試圖填充使用一個GridView，斷點顯示連接字符串的fine..also沒有錯誤，但令人驚訝的數據表爲n沒有收到任何價值..儘管數據存在...我做錯了什麼？

Default3.Aspx：

<td colspan="2" align="center"> 
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">  
    </asp:GridView>  
</td> 

Default3.Aspx.Cs：

protected void Page_Load(object sender, EventArgs e) 
{ 
    string con = OracleDatabase.connection(); 
    String SelectCommand = "select * from EMP"; 

    OracleDataAdapter adp = new OracleDataAdapter(SelectCommand, con); 
    DataTable dt = new DataTable(); 
    adp.Fill(dt); 
    GridView1.DataSource = dt; 
    GridView1.DataBind(); 
    /* 
    OracleDatabase.gridpopulate(SelectCommand, GridView1); 
    GridView1.DataSource = OracleDatabase.gridpopulate(SelectCommand); 
    GridView1.DataBind(); 
    */ 
    //i tried doing this by writting a function At class file also 
} 

類文件：

public static string connection() 
{ 
    oradb = ConfigurationManager.ConnectionStrings["ConnectionString"] 
      .ConnectionString; 
    string str = "Data Source="+db+";User ID="+userid+";Password="+password+";"; 
    oradb = String.Concat(oradb, str);   
    con = new OracleConnection(oradb); 
    con.Open(); 
    return oradb; 
} 

/*(function for gridpopulate) 
public static void gridpopulate(string SelectCommand,GridView grid1) 
{ 
    string con =(ConfigurationManager.ConnectionStrings["ConnectionString"] 
       .ConnectionString); 
    con = String.Concat(con, str); 
    adp = new OracleDataAdapter(SelectCommand,con); 
    DataTable dt = new DataTable(); 
    adp.Fill(dt); 
    grid1.DataSource = dt; 
    grid1.DataBind(); 
    //return dt;   
} 
*/ 

Answer 1

嘗試按以下，插件從函數返回Oracle連接對象返回連接字符串，並通過相同的給適配器TEAD。

OracleConnection con = OracleDatabase.connection(); 

public static OracleConnection connection() 
{ 
oradb =ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; 
string str = "Data Source="+db+";User ID="+userid+";Password="+password+";"; 
oradb = String.Concat(oradb, str);   
con = new OracleConnection(oradb); 
con.Open(); 
return con; 
}