Question

我创建了一个Label控件和gridview。 Label显示数据，但在Gridview中，数据库中的数据不会填充。以下是我的代码。执行此操作时未收到任何错误

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Configuration;
using System.Data;



namespace WebApplication1
{
public partial class WebForm1 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
            string connectionString =  ConfigurationManager.ConnectionStrings["TestConnectionString"].ConnectionString;
        SqlConnection con = new SqlConnection(connectionString);
        SqlCommand cmd = new SqlCommand("Select BATSMAN_NAME from RUNS_STATS", con);
        con.Open();

        SqlDataReader dr=cmd.ExecuteReader();

        while(dr.Read())
        {
            Label1.Text = dr.GetString(dr.GetOrdinal("BATSMAN_NAME"));
        }

        GridView2.DataSource = dr;
        GridView2.DataBind();
        con.Close();
    }
   }
  }

Answer 1

使用SqlDataAdapter＆amp;数据集来填充gridview

 SqlCommand cmd = new SqlCommand("Select BATSMAN_NAME from RUNS_STATS", con);
    SqlDataAdapter daGrid = new SqlDataAdapter(cmd);
    DataSet ds = new DataSet();
    daGrid.Fill(ds);
    GridView2.DataSource = ds.Tables[0];
    GridView2.DataBind();

Answer 2

尝试断开连接的架构。如果以下代码不起作用，请检查查询是否合适。

SqlConnection conobj=new SqlConnection;
SqlCommand cmdobj=new SqlCommand(""Select BATSMAN_NAME from RUNS_STATS", conobj);
SQlDataAdapter sdaobj=new SqlDataAdapter(cmdobj);
DataTable dtobj=new DataTable();
sdaobj.Fill(dtobj);
GridView2.DataSource=dtobj;
GridView2.DataBind();

无法在asp.net中的gridview中显示数据

2 个答案: