关键字旁边的语法不正确 "用户"

using System; 

using System.Collections.Generic; 

using System.ComponentModel; 

using System.Data; 

using System.Drawing; 

using System.Linq; 

using System.Text; 

using System.Windows.Forms; 

using System.Data.SqlClient; 



namespace WindowsFormsApplication1 

{ 

 public partial class Form1 : Form 

 { 

 SqlConnection conn; 

 SqlDataAdapter GameDA; 

 SqlDataAdapter DetailDA; 

 DataSet DetailDS; 

 SqlCommandBuilder cmdBuilder; 

 SqlDataAdapter UserDA; 

 SqlDataAdapter AdministratorDA; 

 SqlDataAdapter OrderDA; 

 DataSet OrderDS; 

 SqlCommandBuilder cmdBuilder2; 



 public Form1//

 {

 InitializeComponent//;

 conn = new SqlConnection/"Data Source=HOME-AC284121FE\\SQLEXPRESS;Initial Catalog=GameShop;Integrated Security=SSPI;"/;

 SqlCommand command1 = new SqlCommand/"SELECT * FROM Game", conn/;

 GameDA = new SqlDataAdapter/command1/;

 SqlCommand command2 = new SqlCommand/"SELECT * FROM Detail WHERE GameID = @GameID", conn/;

 command2.Parameters.Add/new SqlParameter/"@GameID", SqlDbType.Int//;

 DetailDA = new SqlDataAdapter/command2/;

 SqlCommand command3 = new SqlCommand/"SELECT * FROM Administrator", conn/;

 AdministratorDA = new SqlDataAdapter/command3/;

 SqlCommand command4 = new SqlCommand/"SELECT * FROM User", conn/;

 UserDA = new SqlDataAdapter/command4/;

 SqlCommand command5 = new SqlCommand/"SELECT * FROM Order WHERE UserID = @UserID", conn/;

 command5.Parameters.Add/new SqlParameter/"@UserID", SqlDbType.Int//;

 OrderDA = new SqlDataAdapter/command5/;

 cmdBuilder2 = new SqlCommandBuilder/OrderDA/;

 cmdBuilder = new SqlCommandBuilder/DetailDA/;

 }



 private void Form1_Load/object sender, EventArgs e/

 {

 DetailDS = new DataSet//;

 OrderDS = new DataSet//;



 GameDA.Fill/DetailDS, "Game"/;

 **UserDA.Fill/OrderDS, "User"/; // <-- Error**

 AdministratorDA.Fill/OrderDS, "Administrator"/;



 comboBoxGame.DisplayMember = "Name";

 comboBoxGame.ValueMember = "GameID";

 comboBoxGame.DataSource = DetailDS.Tables["Game"];



 dataGridView.DataSource = DetailDS.Tables["Detail"];

 dataGridView.Columns["GameID"].Visible = false;

 dataGridView.Columns["DetailID"].Visible = false;





 }



 private void comboBoxGame_SelectedIndexChanged/object sender, EventArgs e/

 {

 if /comboBoxGame.SelectedValue != null/

 if /DetailDS.Tables.Contains/"Detail"//

 {

 DetailDS.Tables["Detail"].Clear//;

 }

 DetailDA.SelectCommand.Parameters[0].Value = comboBoxGame.SelectedValue;

 DetailDA.Fill/DetailDS, "Detail"/;

 }



 private void buttonExit_Click/object sender, EventArgs e/

 {

 this.Close//;

 }



 }

}