chap20dataset.designer.cs

C#2.0宝典源码,C#经典书籍,很多例子

            get {
                if ((this._adapter == null)) {
                    this.InitAdapter();
                }
                return this._adapter;
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        internal System.Data.SqlClient.SqlConnection Connection {
            get {
                if ((this._connection == null)) {
                    this.InitConnection();
                }
                return this._connection;
            }
            set {
                this._connection = value;
                if ((this.Adapter.InsertCommand != null)) {
                    this.Adapter.InsertCommand.Connection = value;
                }
                if ((this.Adapter.DeleteCommand != null)) {
                    this.Adapter.DeleteCommand.Connection = value;
                }
                if ((this.Adapter.UpdateCommand != null)) {
                    this.Adapter.UpdateCommand.Connection = value;
                }
                for (int i = 0; (i < this.CommandCollection.Length); i = (i + 1)) {
                    if ((this.CommandCollection[i] != null)) {
                        ((System.Data.SqlClient.SqlCommand)(this.CommandCollection[i])).Connection = value;
                    }
                }
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        protected System.Data.SqlClient.SqlCommand[] CommandCollection {
            get {
                if ((this._commandCollection == null)) {
                    this.InitCommandCollection();
                }
                return this._commandCollection;
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        public bool ClearBeforeFill {
            get {
                return this._clearBeforeFill;
            }
            set {
                this._clearBeforeFill = value;
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void InitAdapter() {
            this._adapter = new System.Data.SqlClient.SqlDataAdapter();
            System.Data.Common.DataTableMapping tableMapping = new System.Data.Common.DataTableMapping();
            tableMapping.SourceTable = "Table";
            tableMapping.DataSetTable = "Student";
            tableMapping.ColumnMappings.Add("ID", "ID");
            tableMapping.ColumnMappings.Add("Name", "Name");
            this._adapter.TableMappings.Add(tableMapping);
            this._adapter.DeleteCommand = new System.Data.SqlClient.SqlCommand();
            this._adapter.DeleteCommand.Connection = this.Connection;
            this._adapter.DeleteCommand.CommandText = "DELETE FROM [dbo].[Student] WHERE (([ID] = @Original_ID) AND ([Name] = @Original_" +
                "Name))";
            this._adapter.DeleteCommand.CommandType = System.Data.CommandType.Text;
            this._adapter.DeleteCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_ID", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "ID", System.Data.DataRowVersion.Original, false, null, "", "", ""));
            this._adapter.DeleteCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_Name", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "Name", System.Data.DataRowVersion.Original, false, null, "", "", ""));
            this._adapter.InsertCommand = new System.Data.SqlClient.SqlCommand();
            this._adapter.InsertCommand.Connection = this.Connection;
            this._adapter.InsertCommand.CommandText = "INSERT INTO [dbo].[Student] ([ID], [Name]) VALUES (@ID, @Name);\r\nSELECT ID, Name " +
                "FROM Student WHERE (ID = @ID)";
            this._adapter.InsertCommand.CommandType = System.Data.CommandType.Text;
            this._adapter.InsertCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@ID", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "ID", System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._adapter.InsertCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Name", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "Name", System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._adapter.UpdateCommand = new System.Data.SqlClient.SqlCommand();
            this._adapter.UpdateCommand.Connection = this.Connection;
            this._adapter.UpdateCommand.CommandText = "UPDATE [dbo].[Student] SET [ID] = @ID, [Name] = @Name WHERE (([ID] = @Original_ID" +
                ") AND ([Name] = @Original_Name));\r\nSELECT ID, Name FROM Student WHERE (ID = @ID)" +
                "";
            this._adapter.UpdateCommand.CommandType = System.Data.CommandType.Text;
            this._adapter.UpdateCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@ID", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "ID", System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._adapter.UpdateCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Name", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "Name", System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._adapter.UpdateCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_ID", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "ID", System.Data.DataRowVersion.Original, false, null, "", "", ""));
            this._adapter.UpdateCommand.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_Name", System.Data.SqlDbType.NChar, 0, System.Data.ParameterDirection.Input, 0, 0, "Name", System.Data.DataRowVersion.Original, false, null, "", "", ""));
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void InitConnection() {
            this._connection = new System.Data.SqlClient.SqlConnection();
            this._connection.ConnectionString = global::Example21.Properties.Settings.Default.Chap20ConnectionString;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        private void InitCommandCollection() {
            this._commandCollection = new System.Data.SqlClient.SqlCommand[1];
            this._commandCollection[0] = new System.Data.SqlClient.SqlCommand();
            this._commandCollection[0].Connection = this.Connection;
            this._commandCollection[0].CommandText = "SELECT ID, Name FROM dbo.Student";
            this._commandCollection[0].CommandType = System.Data.CommandType.Text;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        [System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Fill, true)]
        public virtual int Fill(Chap20DataSet.StudentDataTable dataTable) {
            this.Adapter.SelectCommand = this.CommandCollection[0];
            if ((this.ClearBeforeFill == true)) {
                dataTable.Clear();
            }
            int returnValue = this.Adapter.Fill(dataTable);
            return returnValue;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        [System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Select, true)]
        public virtual Chap20DataSet.StudentDataTable GetData() {
            this.Adapter.SelectCommand = this.CommandCollection[0];
            Chap20DataSet.StudentDataTable dataTable = new Chap20DataSet.StudentDataTable();
            this.Adapter.Fill(dataTable);
            return dataTable;
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        public virtual int Update(Chap20DataSet.StudentDataTable dataTable) {
            return this.Adapter.Update(dataTable);
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        public virtual int Update(Chap20DataSet dataSet) {
            return this.Adapter.Update(dataSet, "Student");
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        public virtual int Update(System.Data.DataRow dataRow) {
            return this.Adapter.Update(new System.Data.DataRow[] {
                        dataRow});
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        public virtual int Update(System.Data.DataRow[] dataRows) {
            return this.Adapter.Update(dataRows);
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        [System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Delete, true)]
        public virtual int Delete(string Original_ID, string Original_Name) {
            if ((Original_ID == null)) {
                throw new System.ArgumentNullException("Original_ID");
            }
            else {
                this.Adapter.DeleteCommand.Parameters[0].Value = ((string)(Original_ID));
            }
            if ((Original_Name == null)) {
                throw new System.ArgumentNullException("Original_Name");
            }
            else {
                this.Adapter.DeleteCommand.Parameters[1].Value = ((string)(Original_Name));
            }
            System.Data.ConnectionState previousConnectionState = this.Adapter.DeleteCommand.Connection.State;
            if (((this.Adapter.DeleteCommand.Connection.State & System.Data.ConnectionState.Open) 
                        != System.Data.ConnectionState.Open)) {
                this.Adapter.DeleteCommand.Connection.Open();
            }
            try {
                int returnValue = this.Adapter.DeleteCommand.ExecuteNonQuery();
                return returnValue;
            }
            finally {
                if ((previousConnectionState == System.Data.ConnectionState.Closed)) {
                    this.Adapter.DeleteCommand.Connection.Close();
                }
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        [System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Insert, true)]
        public virtual int Insert(string ID, string Name) {
            if ((ID == null)) {
                throw new System.ArgumentNullException("ID");
            }
            else {
                this.Adapter.InsertCommand.Parameters[0].Value = ((string)(ID));
            }
            if ((Name == null)) {
                throw new System.ArgumentNullException("Name");
            }
            else {
                this.Adapter.InsertCommand.Parameters[1].Value = ((string)(Name));
            }
            System.Data.ConnectionState previousConnectionState = this.Adapter.InsertCommand.Connection.State;
            if (((this.Adapter.InsertCommand.Connection.State & System.Data.ConnectionState.Open) 
                        != System.Data.ConnectionState.Open)) {
                this.Adapter.InsertCommand.Connection.Open();
            }
            try {
                int returnValue = this.Adapter.InsertCommand.ExecuteNonQuery();
                return returnValue;
            }
            finally {
                if ((previousConnectionState == System.Data.ConnectionState.Closed)) {
                    this.Adapter.InsertCommand.Connection.Close();
                }
            }
        }
        
        [System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        [System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Update, true)]
        public virtual int Update(string ID, string Name, string Original_ID, string Original_Name) {
            if ((ID == null)) {
                throw new System.ArgumentNullException("ID");
            }
            else {
                this.Adapter.UpdateCommand.Parameters[0].Value = ((string)(ID));
            }
            if ((Name == null)) {
                throw new System.ArgumentNullException("Name");
            }
            else {
                this.Adapter.UpdateCommand.Parameters[1].Value = ((string)(Name));
            }
            if ((Original_ID == null)) {
                throw new System.ArgumentNullException("Original_ID");
            }
            else {
                this.Adapter.UpdateCommand.Parameters[2].Value = ((string)(Original_ID));
            }
            if ((Original_Name == null)) {
                throw new System.ArgumentNullException("Original_Name");
            }
            else {
                this.Adapter.UpdateCommand.Parameters[3].Value = ((string)(Original_Name));
            }
            System.Data.ConnectionState previousConnectionState = this.Adapter.UpdateCommand.Connection.State;
            if (((this.Adapter.UpdateCommand.Connection.State & System.Data.ConnectionState.Open) 
                        != System.Data.ConnectionState.Open)) {
                this.Adapter.UpdateCommand.Connection.Open();
            }
            try {
                int returnValue = this.Adapter.UpdateCommand.ExecuteNonQuery();
                return returnValue;
            }
            finally {
                if ((previousConnectionState == System.Data.ConnectionState.Closed)) {
                    this.Adapter.UpdateCommand.Connection.Close();
                }
            }
        }
    }
}

#pragma warning restore 1591