invoicelistdataset.designer.cs

c#三层架构项目开发的全过程

            global::System.Data.IDbConnection workConnection = this.Connection;
            if ((workConnection == null)) {
                throw new global::System.ApplicationException("TableAdapterManager 不包含任何连接信息。请将每个 TableAdapterManager TableAdapter 属性设置为有效的 Tabl" +
                        "eAdapter 实例。");
            }
            bool workConnOpened = false;
            if (((workConnection.State & global::System.Data.ConnectionState.Broken) 
                        == global::System.Data.ConnectionState.Broken)) {
                workConnection.Close();
            }
            if ((workConnection.State == global::System.Data.ConnectionState.Closed)) {
                workConnection.Open();
                workConnOpened = true;
            }
            global::System.Data.IDbTransaction workTransaction = workConnection.BeginTransaction();
            if ((workTransaction == null)) {
                throw new global::System.ApplicationException("事务无法开始。当前的数据连接不支持事务或当前状态不允许事务开始。");
            }
            global::System.Collections.Generic.List<global::System.Data.DataRow> allChangedRows = new global::System.Collections.Generic.List<global::System.Data.DataRow>();
            global::System.Collections.Generic.List<global::System.Data.DataRow> allAddedRows = new global::System.Collections.Generic.List<global::System.Data.DataRow>();
            global::System.Collections.Generic.List<global::System.Data.Common.DataAdapter> adaptersWithAcceptChangesDuringUpdate = new global::System.Collections.Generic.List<global::System.Data.Common.DataAdapter>();
            global::System.Collections.Generic.Dictionary<object, global::System.Data.IDbConnection> revertConnections = new global::System.Collections.Generic.Dictionary<object, global::System.Data.IDbConnection>();
            int result = 0;
            global::System.Data.DataSet backupDataSet = null;
            if (this.BackupDataSetBeforeUpdate) {
                backupDataSet = new global::System.Data.DataSet();
                backupDataSet.Merge(dataSet);
            }
            try {
                // ---- Prepare for update -----------
                //
                // 
                //---- Perform updates -----------
                //
                if ((this.UpdateOrder == UpdateOrderOption.UpdateInsertDelete)) {
                    result = (result + this.UpdateUpdatedRows(dataSet, allChangedRows, allAddedRows));
                    result = (result + this.UpdateInsertedRows(dataSet, allAddedRows));
                }
                else {
                    result = (result + this.UpdateInsertedRows(dataSet, allAddedRows));
                    result = (result + this.UpdateUpdatedRows(dataSet, allChangedRows, allAddedRows));
                }
                result = (result + this.UpdateDeletedRows(dataSet, allChangedRows));
                // 
                //---- Commit updates -----------
                //
                workTransaction.Commit();
                if ((0 < allAddedRows.Count)) {
                    global::System.Data.DataRow[] rows = new System.Data.DataRow[allAddedRows.Count];
                    allAddedRows.CopyTo(rows);
                    for (int i = 0; (i < rows.Length); i = (i + 1)) {
                        global::System.Data.DataRow row = rows[i];
                        row.AcceptChanges();
                    }
                }
                if ((0 < allChangedRows.Count)) {
                    global::System.Data.DataRow[] rows = new System.Data.DataRow[allChangedRows.Count];
                    allChangedRows.CopyTo(rows);
                    for (int i = 0; (i < rows.Length); i = (i + 1)) {
                        global::System.Data.DataRow row = rows[i];
                        row.AcceptChanges();
                    }
                }
            }
            catch (global::System.Exception ex) {
                workTransaction.Rollback();
                // ---- Restore the dataset -----------
                if (this.BackupDataSetBeforeUpdate) {
                    global::System.Diagnostics.Debug.Assert((backupDataSet != null));
                    dataSet.Clear();
                    dataSet.Merge(backupDataSet);
                }
                else {
                    if ((0 < allAddedRows.Count)) {
                        global::System.Data.DataRow[] rows = new System.Data.DataRow[allAddedRows.Count];
                        allAddedRows.CopyTo(rows);
                        for (int i = 0; (i < rows.Length); i = (i + 1)) {
                            global::System.Data.DataRow row = rows[i];
                            row.AcceptChanges();
                            row.SetAdded();
                        }
                    }
                }
                throw ex;
            }
            finally {
                if (workConnOpened) {
                    workConnection.Close();
                }
                if ((0 < adaptersWithAcceptChangesDuringUpdate.Count)) {
                    global::System.Data.Common.DataAdapter[] adapters = new System.Data.Common.DataAdapter[adaptersWithAcceptChangesDuringUpdate.Count];
                    adaptersWithAcceptChangesDuringUpdate.CopyTo(adapters);
                    for (int i = 0; (i < adapters.Length); i = (i + 1)) {
                        global::System.Data.Common.DataAdapter adapter = adapters[i];
                        adapter.AcceptChangesDuringUpdate = true;
                    }
                }
            }
            return result;
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
        protected virtual void SortSelfReferenceRows(global::System.Data.DataRow[] rows, global::System.Data.DataRelation relation, bool childFirst) {
            global::System.Array.Sort<global::System.Data.DataRow>(rows, new SelfReferenceComparer(relation, childFirst));
        }
        
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
        protected virtual bool MatchTableAdapterConnection(global::System.Data.IDbConnection inputConnection) {
            if ((this._connection != null)) {
                return true;
            }
            if (((this.Connection == null) 
                        || (inputConnection == null))) {
                return true;
            }
            if (string.Equals(this.Connection.ConnectionString, inputConnection.ConnectionString, global::System.StringComparison.Ordinal)) {
                return true;
            }
            return false;
        }
        
        /// <summary>
        ///Update Order Option
        ///</summary>
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
        public enum UpdateOrderOption {
            
            InsertUpdateDelete = 0,
            
            UpdateInsertDelete = 1,
        }
        
        /// <summary>
        ///Used to sort self-referenced table's rows
        ///</summary>
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
        private class SelfReferenceComparer : object, global::System.Collections.Generic.IComparer<global::System.Data.DataRow> {
            
            private global::System.Data.DataRelation _relation;
            
            private int _childFirst;
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
            internal SelfReferenceComparer(global::System.Data.DataRelation relation, bool childFirst) {
                this._relation = relation;
                if (childFirst) {
                    this._childFirst = -1;
                }
                else {
                    this._childFirst = 1;
                }
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
            private global::System.Data.DataRow GetRoot(global::System.Data.DataRow row, out int distance) {
                global::System.Diagnostics.Debug.Assert((row != null));
                global::System.Data.DataRow root = row;
                distance = 0;

                global::System.Collections.Generic.IDictionary<global::System.Data.DataRow, global::System.Data.DataRow> traversedRows = new global::System.Collections.Generic.Dictionary<global::System.Data.DataRow, global::System.Data.DataRow>();
                traversedRows[row] = row;

                global::System.Data.DataRow parent = row.GetParentRow(this._relation, global::System.Data.DataRowVersion.Default);
                for (
                ; ((parent != null) 
                            && (traversedRows.ContainsKey(parent) == false)); 
                ) {
                    distance = (distance + 1);
                    root = parent;
                    traversedRows[parent] = parent;
                    parent = parent.GetParentRow(this._relation, global::System.Data.DataRowVersion.Default);
                }

                if ((distance == 0)) {
                    traversedRows.Clear();
                    traversedRows[row] = row;
                    parent = row.GetParentRow(this._relation, global::System.Data.DataRowVersion.Original);
                    for (
                    ; ((parent != null) 
                                && (traversedRows.ContainsKey(parent) == false)); 
                    ) {
                        distance = (distance + 1);
                        root = parent;
                        traversedRows[parent] = parent;
                        parent = parent.GetParentRow(this._relation, global::System.Data.DataRowVersion.Original);
                    }
                }

                return root;
            }
            
            [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
            public int Compare(global::System.Data.DataRow row1, global::System.Data.DataRow row2) {
                if (object.ReferenceEquals(row1, row2)) {
                    return 0;
                }
                if ((row1 == null)) {
                    return -1;
                }
                if ((row2 == null)) {
                    return 1;
                }

                int distance1 = 0;
                global::System.Data.DataRow root1 = this.GetRoot(row1, out distance1);

                int distance2 = 0;
                global::System.Data.DataRow root2 = this.GetRoot(row2, out distance2);

                if (object.ReferenceEquals(root1, root2)) {
                    return (this._childFirst * distance1.CompareTo(distance2));
                }
                else {
                    global::System.Diagnostics.Debug.Assert(((root1.Table != null) 
                                    && (root2.Table != null)));
                    if ((root1.Table.Rows.IndexOf(root1) < root2.Table.Rows.IndexOf(root2))) {
                        return -1;
                    }
                    else {
                        return 1;
                    }
                }
            }
        }
    }
}

#pragma warning restore 1591