protected void Page_Load(object sender, EventArgs e)

...{

if(!Page.IsPostBack)

...{

//不带参数的存储过程的使用方法

SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["oaConnectionString"].ToString());

SqlDataAdapter da = new SqlDataAdapter();

DataSet ds=new DataSet();

da.SelectCommand = new SqlCommand();

da.SelectCommand.Connection = conn;

da.SelectCommand.CommandText = "oa_SelectAllUser";

da.SelectCommand.CommandType = CommandType.StoredProcedure;

da.Fill(ds);

GridView1.DataSource = ds;

GridView1.DataBind();

}

protected void btn_search_Click(object sender, EventArgs e)

...{

//带参数的存储过程的使用方法

SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["oaConnectionString"].ToString());

SqlDataAdapter da = new SqlDataAdapter();

DataSet ds = new DataSet();

da.SelectCommand = new SqlCommand();

da.SelectCommand.Connection = conn;

da.SelectCommand.CommandText = "oa_SelectByID";

da.SelectCommand.CommandType = CommandType.StoredProcedure;

SqlParameter param = new SqlParameter("@id", SqlDbType.Int);

param.Direction = ParameterDirection.Input;

param.Value = Convert.ToInt32(txt_value.Text);

da.SelectCommand.Parameters.Add(param);

da.Fill(ds);

GridView1.DataSource = ds;

GridView1.DataBind();

}