protected void Page_Load( object sender, EventArgs e )
{
if (!Page.IsPostBack)
{
OleDbConnection cn = new OleDbConnection(ConnectionString);
cn.Open();
cn1 = new OleDbConnection(ConnectionString);
cn1.Open();
OleDbCommand cmd = new OleDbCommand("select * from [Subject]", cn);
OleDbDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
MasterGridView.DataSource = dr;
MasterGridView.DataBind();
dr.Close();
cmd.Dispose();
cn.Dispose();
cn1.Dispose();
cn = cn1 = null;
}
}
protected void MasterGridView_RowDataBound( object sender, GridViewRowEventArgs e )
{
if (e.Row.RowType == DataControlRowType.DataRow)
{

GridView oGridView = (GridView)e.Row.FindControl("DetailGridView");
if (oGridView != null)
{
OleDbCommand cmd = new OleDbCommand("select top 10 * from Document Where pid = " + MasterGridView.DataKeys[e.Row.RowIndex].Value, cn1);
OleDbDataReader dr1 = cmd.ExecuteReader();
oGridView.DataSource = dr1;
oGridView.DataBind();
dr1.Close();
cmd.Dispose();
}
}
}

protected void DetailGridView_RowDeleting( object sender, GridViewDeleteEventArgs e )
{
GridView a = (GridView)sender;
Response.Write("您要删除的记录是：" + a.DataKeys[e.RowIndex].Value.ToString() + "    TODO：执行删除动作");
// TODO：执行删除动作
}
protected void DetailGridView_RowCommand( object sender, GridViewCommandEventArgs e )
{

}
protected void Button1_Click( object sender, EventArgs e )
{
string Guids = Request.Form["guid"];
if (Guids == null || Guids.Equals(string.Empty))
{
Response.Write("没有数据可以修改。");
return;
}
string sql;
OleDbCommand cmd;
OleDbConnection cn = new OleDbConnection();
cn.ConnectionString = ConnectionString;
cn.Open();
string[] ArrGuid = Guids.Split(',');
for (int i = 0 ; i < ArrGuid.Length ; i++)
{
sql = "UPDATE Document Set Title = @Title,CreateDate = @CreateDate Where id = @id";
cmd = new OleDbCommand(sql, cn);
cmd.Parameters.AddWithValue("@Title",Request.Form["Title" + ArrGuid[i].Trim()]);
cmd.Parameters.AddWithValue("@CreateDate", Request.Form["Date" + ArrGuid[i].Trim()]);
cmd.Parameters.AddWithValue("@id",ArrGuid[i].Trim());
cmd.ExecuteNonQuery();
Response.Write("