this.tablestuInfor = new stuInforDataTable();
            base.Tables.Add(this.tablestuInfor);
            this.tablestuScore = new stuScoreDataTable();
            base.Tables.Add(this.tablestuScore);
            this.tableteaInfor = new teaInforDataTable();
            base.Tables.Add(this.tableteaInfor);
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private bool ShouldSerializecourse() {
            return false;
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private bool ShouldSerializestuInfor() {
            return false;
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private bool ShouldSerializestuScore() {
            return false;
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private bool ShouldSerializeteaInfor() {
            return false;
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void SchemaChanged(object sender, global::System.ComponentModel.CollectionChangeEventArgs e) {
            if ((e.Action == global::System.ComponentModel.CollectionChangeAction.Remove)) {
                this.InitVars();
            }
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        public static global::System.Xml.Schema.XmlSchemaComplexType GetTypedDataSetSchema(global::System.Xml.Schema.XmlSchemaSet xs) {
            studentSystemDataSet ds = new studentSystemDataSet();
            global::System.Xml.Schema.XmlSchemaComplexType type = new global::System.Xml.Schema.XmlSchemaComplexType();
            global::System.Xml.Schema.XmlSchemaSequence sequence = new global::System.Xml.Schema.XmlSchemaSequence();
            global::System.Xml.Schema.XmlSchemaAny any = new global::System.Xml.Schema.XmlSchemaAny();
            any.Namespace = ds.Namespace;
            sequence.Items.Add(any);
            type.Particle = sequence;
            global::System.Xml.Schema.XmlSchema dsSchema = ds.GetSchemaSerializable();
            if (xs.Contains(dsSchema.TargetNamespace)) {
                global::System.IO.MemoryStream s1 = new global::System.IO.MemoryStream();
                global::System.IO.MemoryStream s2 = new global::System.IO.MemoryStream();
                try {
                    global::System.Xml.Schema.XmlSchema schema = null;
                    dsSchema.Write(s1);
                    for (global::System.Collections.IEnumerator schemas = xs.Schemas(dsSchema.TargetNamespace).GetEnumerator(); schemas.MoveNext(); ) {
                        schema = ((global::System.Xml.Schema.XmlSchema)(schemas.Current));
                        s2.SetLength(0);
                        schema.Write(s2);
                        if ((s1.Length == s2.Length)) {
                            s1.Position = 0;
                            s2.Position = 0;
                            for (; ((s1.Position != s1.Length) 
                                        && (s1.ReadByte() == s2.ReadByte())); ) {
                                ;
                            }
                            if ((s1.Position == s1.Length)) {
                                return type;
                            }
                        }
                    }
                }
                finally {
                    if ((s1 != null)) {
                        s1.Close();
                    }
                    if ((s2 != null)) {
                        s2.Close();
                    }
                }
            }
            xs.Add(dsSchema);
            return type;
        }
        
        public delegate void courseRowChangeEventHandler(object sender, courseRowChangeEvent e);
        
        public delegate void stuInforRowChangeEventHandler(object sender, stuInforRowChangeEvent e);
        
        public delegate void stuScoreRowChangeEventHandler(object sender, stuScoreRowChangeEvent e);
        
        public delegate void teaInforRowChangeEventHandler(object sender, teaInforRowChangeEvent e);
        
        /// <summary>
        ///Represents the strongly named DataTable class.
        ///</summary>
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "2.0.0.0")]
        [global::System.Serializable()]
        [global::System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedTableSchema")]
        public partial class courseDataTable : global::System.Data.DataTable, global::System.Collections.IEnumerable {
            
            private global::System.Data.DataColumn columncouNumber;
            
            private global::System.Data.DataColumn columncouName;
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public courseDataTable() {
                this.TableName = "course";
                this.BeginInit();
                this.InitClass();
                this.EndInit();
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            internal courseDataTable(global::System.Data.DataTable table) {
                this.TableName = table.TableName;
                if ((table.CaseSensitive != table.DataSet.CaseSensitive)) {
                    this.CaseSensitive = table.CaseSensitive;
                }
                if ((table.Locale.ToString() != table.DataSet.Locale.ToString())) {
                    this.Locale = table.Locale;
                }
                if ((table.Namespace != table.DataSet.Namespace)) {
                    this.Namespace = table.Namespace;
                }
                this.Prefix = table.Prefix;
                this.MinimumCapacity = table.MinimumCapacity;
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected courseDataTable(global::System.Runtime.Serialization.SerializationInfo info, global::System.Runtime.Serialization.StreamingContext context) : 
                    base(info, context) {
                this.InitVars();
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public global::System.Data.DataColumn couNumberColumn {
                get {
                    return this.columncouNumber;
                }
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public global::System.Data.DataColumn couNameColumn {
                get {
                    return this.columncouName;
                }
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            [global::System.ComponentModel.Browsable(false)]
            public int Count {
                get {
                    return this.Rows.Count;
                }
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public courseRow this[int index] {
                get {
                    return ((courseRow)(this.Rows[index]));
                }
            }
            
            public event courseRowChangeEventHandler courseRowChanging;
            
            public event courseRowChangeEventHandler courseRowChanged;
            
            public event courseRowChangeEventHandler courseRowDeleting;
            
            public event courseRowChangeEventHandler courseRowDeleted;
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public void AddcourseRow(courseRow row) {
                this.Rows.Add(row);
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public courseRow AddcourseRow(string couNumber, string couName) {
                courseRow rowcourseRow = ((courseRow)(this.NewRow()));
                object[] columnValuesArray = new object[] {
                        couNumber,
                        couName};
                rowcourseRow.ItemArray = columnValuesArray;
                this.Rows.Add(rowcourseRow);
                return rowcourseRow;
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public virtual global::System.Collections.IEnumerator GetEnumerator() {
                return this.Rows.GetEnumerator();
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public override global::System.Data.DataTable Clone() {
                courseDataTable cln = ((courseDataTable)(base.Clone()));
                cln.InitVars();
                return cln;
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected override global::System.Data.DataTable CreateInstance() {
                return new courseDataTable();
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            internal void InitVars() {
                this.columncouNumber = base.Columns["couNumber"];
                this.columncouName = base.Columns["couName"];
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            private void InitClass() {
                this.columncouNumber = new global::System.Data.DataColumn("couNumber", typeof(string), null, global::System.Data.MappingType.Element);
                base.Columns.Add(this.columncouNumber);
                this.columncouName = new global::System.Data.DataColumn("couName", typeof(string), null, global::System.Data.MappingType.Element);
                base.Columns.Add(this.columncouName);
                this.columncouNumber.MaxLength = 255;
                this.columncouName.MaxLength = 255;
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public courseRow NewcourseRow() {
                return ((courseRow)(this.NewRow()));
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected override global::System.Data.DataRow NewRowFromBuilder(global::System.Data.DataRowBuilder builder) {
                return new courseRow(builder);
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected override global::System.Type GetRowType() {
                return typeof(courseRow);
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected override void OnRowChanged(global::System.Data.DataRowChangeEventArgs e) {
                base.OnRowChanged(e);
                if ((this.courseRowChanged != null)) {
                    this.courseRowChanged(this, new courseRowChangeEvent(((courseRow)(e.Row)), e.Action));
                }
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected override void OnRowChanging(global::System.Data.DataRowChangeEventArgs e) {
                base.OnRowChanging(e);
                if ((this.courseRowChanging != null)) {
                    this.courseRowChanging(this, new courseRowChangeEvent(((courseRow)(e.Row)), e.Action));
                }
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected override void OnRowDeleted(global::System.Data.DataRowChangeEventArgs e) {
                base.OnRowDeleted(e);
                if ((this.courseRowDeleted != null)) {
                    this.courseRowDeleted(this, new courseRowChangeEvent(((courseRow)(e.Row)), e.Action));
                }
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            protected override void OnRowDeleting(global::System.Data.DataRowChangeEventArgs e) {
                base.OnRowDeleting(e);
                if ((this.courseRowDeleting != null)) {
                    this.courseRowDeleting(this, new courseRowChangeEvent(((courseRow)(e.Row)), e.Action));
                }
            }