不包含DataBind的定義

Question

using (SqlConnection con = new SqlConnection(@"Data Source=DESKTOP-IIDC3HF\SQLEXPRESS;Initial Catalog=EmployeeNotifier;Integrated Security=True"))
{
    con.Open();

    SqlCommand cmd = new SqlCommand("Select Name,Salary FROM YOUR TABLE", con);

    SqlDataReader dr = cmd.ExecuteReader();

    dataGridView1.DataSource = dr;
    dataGridView1.DataBind();     // causing problem here

    con.Close();
}

我嘗試了這段代碼，但顯示錯誤

不包含DataBind的定義

Answer 1

var select =q;
        var c = new SqlConnection(@"Your Connection String here ");  
        var dataAdapter = new SqlDataAdapter(select, c);
        var commandBuilder = new SqlCommandBuilder(dataAdapter);
        var ds = new DataSet();
        dataAdapter.Fill(ds);
        dataGridView1.ReadOnly = true;
        dataGridView1.DataSource = ds.Tables[0];

現在我嘗試使用此代碼，它對我來說真的很好

Answer 2

問題在於，數據讀取器必須遍歷一個對象，嘗試使用此方法創建一個custome類來保存您的數據，如下所示。 如果那太麻煩了，請使用數據適配器並使用數據集

List<myCustomerCLass> list = new List<myCustomerCLass>();

  con.Open();

    SqlCommand cmd = new SqlCommand("Select Name,Salary FROM YOUR TABLE", con);

    SqlDataReader dr = cmd.ExecuteReader();
if (reader.HasRows)
        {
            while (reader.Read())
            {
myCustomerCLass  test = new myCustomerCLass();
                test.property1 = reader["Property1"]
test.property2 = reader["Property2"]
test.property3 = reader["Property3"]
list.add(test);
            }
        }

        reader.Close();
    dataGridView1.DataSource = list;
    dataGridView1.DataBind();     // causing problem here

    con.Close();