请问执行后没有添加数据，哪里出错了，帮忙修改一下

Question

using System.Data.SqlClient;

namespace WindowsFormsApplication7
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

    private void button1_Click(object sender, EventArgs e)
    {
        string Sql;

        string ConnectionString = "Server=(local);Integrated Security=SSPI;Database=student";
        SqlConnection conn = new SqlConnection(ConnectionString);
        conn.Open();
        MessageBox.Show("连接成功！");
        Sql="Select * from  学生";
        try
        {
            SqlDataAdapter adapter = new SqlDataAdapter(Sql, conn);
            DataTable datatable = new DataTable();
            adapter.Fill(datatable);
            Sql = "Insert Into 学生" + "Values('05','熊大','男','1995-5-12','2015-9-1','001')";
            SqlCommand cmd = new SqlCommand();
            cmd = new SqlCommand(Sql, conn);
             MessageBox.Show("添加成功");


            dataGridView1.DataSource = datatable;
        }
        catch (SqlException ex)
        {
            throw ex;
        }

    }
}

}

Answer 1

你数据库的表的字段定义了没有？需要table.Name = "熊大"，等命令才能插入成功，不然数据库是没法自动帮你分配的