returninfo.cs

本论文叙述了联机考试系统的现状以及C#语言的概况。重点介绍了联机考试系统的实现过程：包括系统分析、 系统调查、 数据流程分析、功能设计、 数据库设计、 系统物理配置方案、 系统实现、 系统测试和调试。

//------------------------------------------------------------------------------
// <autogenerated>
//     This code was generated by a tool.
//     Runtime Version: 1.1.4322.573
//
//     Changes to this file may cause incorrect behavior and will be lost if 
//     the code is regenerated.
// </autogenerated>
//------------------------------------------------------------------------------

namespace SupermarketProject {
    using System;
    using System.Data;
    using System.Xml;
    using System.Runtime.Serialization;
    
    
    [Serializable()]
    [System.ComponentModel.DesignerCategoryAttribute("code")]
    [System.Diagnostics.DebuggerStepThrough()]
    [System.ComponentModel.ToolboxItem(true)]
    public class ReturnInfo : DataSet {
        
        private ReturnsDataTable tableReturns;
        
        public ReturnInfo() {
            this.InitClass();
            System.ComponentModel.CollectionChangeEventHandler schemaChangedHandler = new System.ComponentModel.CollectionChangeEventHandler(this.SchemaChanged);
            this.Tables.CollectionChanged += schemaChangedHandler;
            this.Relations.CollectionChanged += schemaChangedHandler;
        }
        
        protected ReturnInfo(SerializationInfo info, StreamingContext context) {
            string strSchema = ((string)(info.GetValue("XmlSchema", typeof(string))));
            if ((strSchema != null)) {
                DataSet ds = new DataSet();
                ds.ReadXmlSchema(new XmlTextReader(new System.IO.StringReader(strSchema)));
                if ((ds.Tables["Returns"] != null)) {
                    this.Tables.Add(new ReturnsDataTable(ds.Tables["Returns"]));
                }
                this.DataSetName = ds.DataSetName;
                this.Prefix = ds.Prefix;
                this.Namespace = ds.Namespace;
                this.Locale = ds.Locale;
                this.CaseSensitive = ds.CaseSensitive;
                this.EnforceConstraints = ds.EnforceConstraints;
                this.Merge(ds, false, System.Data.MissingSchemaAction.Add);
                this.InitVars();
            }
            else {
                this.InitClass();
            }
            this.GetSerializationData(info, context);
            System.ComponentModel.CollectionChangeEventHandler schemaChangedHandler = new System.ComponentModel.CollectionChangeEventHandler(this.SchemaChanged);
            this.Tables.CollectionChanged += schemaChangedHandler;
            this.Relations.CollectionChanged += schemaChangedHandler;
        }
        
        [System.ComponentModel.Browsable(false)]
        [System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Content)]
        public ReturnsDataTable Returns {
            get {
                return this.tableReturns;
            }
        }
        
        public override DataSet Clone() {
            ReturnInfo cln = ((ReturnInfo)(base.Clone()));
            cln.InitVars();
            return cln;
        }
        
        protected override bool ShouldSerializeTables() {
            return false;
        }
        
        protected override bool ShouldSerializeRelations() {
            return false;
        }
        
        protected override void ReadXmlSerializable(XmlReader reader) {
            this.Reset();
            DataSet ds = new DataSet();
            ds.ReadXml(reader);
            if ((ds.Tables["Returns"] != null)) {
                this.Tables.Add(new ReturnsDataTable(ds.Tables["Returns"]));
            }
            this.DataSetName = ds.DataSetName;
            this.Prefix = ds.Prefix;
            this.Namespace = ds.Namespace;
            this.Locale = ds.Locale;
            this.CaseSensitive = ds.CaseSensitive;
            this.EnforceConstraints = ds.EnforceConstraints;
            this.Merge(ds, false, System.Data.MissingSchemaAction.Add);
            this.InitVars();
        }
        
        protected override System.Xml.Schema.XmlSchema GetSchemaSerializable() {
            System.IO.MemoryStream stream = new System.IO.MemoryStream();
            this.WriteXmlSchema(new XmlTextWriter(stream, null));
            stream.Position = 0;
            return System.Xml.Schema.XmlSchema.Read(new XmlTextReader(stream), null);
        }
        
        internal void InitVars() {
            this.tableReturns = ((ReturnsDataTable)(this.Tables["Returns"]));
            if ((this.tableReturns != null)) {
                this.tableReturns.InitVars();
            }
        }
        
        private void InitClass() {
            this.DataSetName = "ReturnInfo";
            this.Prefix = "";
            this.Namespace = "http://tempuri.org/ReturnInfo.xsd";
            this.Locale = new System.Globalization.CultureInfo("en-US");
            this.CaseSensitive = false;
            this.EnforceConstraints = true;
            this.tableReturns = new ReturnsDataTable();
            this.Tables.Add(this.tableReturns);
        }
        
        private bool ShouldSerializeReturns() {
            return false;
        }
        
        private void SchemaChanged(object sender, System.ComponentModel.CollectionChangeEventArgs e) {
            if ((e.Action == System.ComponentModel.CollectionChangeAction.Remove)) {
                this.InitVars();
            }
        }
        
        public delegate void ReturnsRowChangeEventHandler(object sender, ReturnsRowChangeEvent e);
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class ReturnsDataTable : DataTable, System.Collections.IEnumerable {
            
            private DataColumn columnBillNo;
            
            private DataColumn columnBillDate;
            
            private DataColumn columnUsrID;
            
            private DataColumn columnStockId;
            
            private DataColumn columnQuantity;
            
            private DataColumn columnSalePrice;
            
            internal ReturnsDataTable() : 
                    base("Returns") {
                this.InitClass();
            }
            
            internal ReturnsDataTable(DataTable table) : 
                    base(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;
                this.DisplayExpression = table.DisplayExpression;
            }
            
            [System.ComponentModel.Browsable(false)]
            public int Count {
                get {
                    return this.Rows.Count;
                }
            }
            
            internal DataColumn BillNoColumn {
                get {
                    return this.columnBillNo;
                }
            }
            
            internal DataColumn BillDateColumn {
                get {
                    return this.columnBillDate;
                }
            }
            
            internal DataColumn UsrIDColumn {
                get {
                    return this.columnUsrID;
                }
            }
            
            internal DataColumn StockIdColumn {
                get {
                    return this.columnStockId;
                }
            }
            
            internal DataColumn QuantityColumn {
                get {
                    return this.columnQuantity;
                }
            }
            
            internal DataColumn SalePriceColumn {
                get {
                    return this.columnSalePrice;
                }
            }
            
            public ReturnsRow this[int index] {
                get {
                    return ((ReturnsRow)(this.Rows[index]));
                }
            }
            
            public event ReturnsRowChangeEventHandler ReturnsRowChanged;
            
            public event ReturnsRowChangeEventHandler ReturnsRowChanging;
            
            public event ReturnsRowChangeEventHandler ReturnsRowDeleted;
            
            public event ReturnsRowChangeEventHandler ReturnsRowDeleting;
            
            public void AddReturnsRow(ReturnsRow row) {
                this.Rows.Add(row);
            }
            
            public ReturnsRow AddReturnsRow(int BillNo, System.DateTime BillDate, string UsrID, int StockId, int Quantity, System.Decimal SalePrice) {
                ReturnsRow rowReturnsRow = ((ReturnsRow)(this.NewRow()));
                rowReturnsRow.ItemArray = new object[] {
                        BillNo,
                        BillDate,
                        UsrID,
                        StockId,
                        Quantity,
                        SalePrice};
                this.Rows.Add(rowReturnsRow);
                return rowReturnsRow;
            }
            
            public System.Collections.IEnumerator GetEnumerator() {
                return this.Rows.GetEnumerator();
            }
            
            public override DataTable Clone() {