[6133] | 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using System.Linq;
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| 4 | using System.Text;
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| 5 | using System.Windows.Forms;
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| 6 | using HeuristicLab.DataImporter.Data;
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| 7 | using HeuristicLab.DataImporter.Data.CommandBase;
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| 8 | using HeuristicLab.DataImporter.Data.Model;
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| 9 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 10 |
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| 11 | namespace HeuristicLab.DataImporter.Command {
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| 12 | [StorableClass]
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| 13 | [ViewableCommandInfo("Align ColumnGroups", 2, ColumnGroupState.Sorted, "ColumnGroup Commands", Position = 4)]
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| 14 | public class AlignColumnGroupsCommand : DataSetCommandWithAffectedColumnGroupsBase {
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| 15 | private ColumnGroup newColumnGroup1;
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| 16 | private ColumnGroup newColumnGroup2;
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| 17 | private ColumnGroup oldColumnGroup1;
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| 18 | private ColumnGroup oldColumnGroup2;
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| 19 | private int removePos1;
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| 20 | private int removePos2;
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| 21 |
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| 22 | private AlignColumnGroupsCommand()
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| 23 | : base(null, null) {
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| 24 | }
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| 25 |
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| 26 | public AlignColumnGroupsCommand(DataSet dataSet, List<string> affectedColumnGroupNames)
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| 27 | : base(dataSet, affectedColumnGroupNames) {
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| 28 | }
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| 29 |
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| 30 | public override void Execute() {
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| 31 | base.Execute();
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| 32 | this.oldColumnGroup1 = this.DataSet.GetColumnGroup(AffectedColumnGroupNames[0]);
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| 33 | this.oldColumnGroup2 = this.DataSet.GetColumnGroup(AffectedColumnGroupNames[1]);
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| 34 | this.removePos1 = this.DataSet.IndexOfColumnGroup(oldColumnGroup1);
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| 35 | this.removePos2 = this.DataSet.IndexOfColumnGroup(oldColumnGroup2);
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| 36 |
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| 37 | if (oldColumnGroup1.SortedColumnsCount < 1 || oldColumnGroup1.SortedColumnsCount != oldColumnGroup2.SortedColumnsCount)
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| 38 | throw new CommandExecutionException("Both ColumnGroups must be sorted by at least one column and must be sorted by the same number of columns.", this);
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| 39 | for (int i = 0; i < oldColumnGroup1.SortedColumnsCount; i++) {
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| 40 | if (this.oldColumnGroup1.SortOrdersForColumns.ElementAt(oldColumnGroup1.SortedColumnIndexes.ElementAt(i)) !=
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| 41 | this.oldColumnGroup2.SortOrdersForColumns.ElementAt(oldColumnGroup2.SortedColumnIndexes.ElementAt(i)))
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| 42 | throw new CommandExecutionException("Both ColumnGroups must be sorted in the same direction.", this);
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| 43 | if (this.oldColumnGroup1.Columns.ElementAt(oldColumnGroup1.SortedColumnIndexes.ElementAt(i)).DataType !=
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| 44 | this.oldColumnGroup2.Columns.ElementAt(oldColumnGroup2.SortedColumnIndexes.ElementAt(i)).DataType)
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| 45 | throw new CommandExecutionException("Both ColumnGroups must be sorted by columns of the same type",this);
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| 46 | }
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| 47 |
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| 48 | foreach (int sortColIndex in oldColumnGroup1.SortedColumnIndexes) {
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| 49 | if (oldColumnGroup1.Columns.ElementAt(sortColIndex).ContainsNullValues)
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| 50 | throw new CommandExecutionException("KeyColumn " + oldColumnGroup1.GetColumn(sortColIndex).Name + " not contain null values.", this);
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| 51 | }
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| 52 | foreach (int sortColIndex in oldColumnGroup2.SortedColumnIndexes) {
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| 53 | if (oldColumnGroup2.Columns.ElementAt(sortColIndex).ContainsNullValues)
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| 54 | throw new CommandExecutionException("KeyColumn " + oldColumnGroup1.GetColumn(sortColIndex).Name + " must not contain null values.", this);
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| 55 | }
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| 56 | SampleColumnGroup();
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| 57 |
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| 58 | DataSet.ReplaceColumnGroup(removePos1, newColumnGroup1);
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| 59 | DataSet.ReplaceColumnGroup(removePos2, newColumnGroup2);
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| 60 | newColumnGroup1 = null;
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| 61 | newColumnGroup2 = null;
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| 62 | DataSet.FireChanged();
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| 63 | }
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| 64 |
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| 65 | public override void UndoExecute() {
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| 66 | base.UndoExecute();
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| 67 | DataSet.ReplaceColumnGroup(removePos1, oldColumnGroup1);
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| 68 | DataSet.ReplaceColumnGroup(removePos2, oldColumnGroup2);
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| 69 | oldColumnGroup1 = null;
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| 70 | oldColumnGroup2 = null;
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| 71 | DataSet.FireChanged();
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| 72 | }
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| 73 |
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| 74 |
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| 75 | public void SampleColumnGroup() {
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| 76 | var keyColumnIndex1 = oldColumnGroup1.SortedColumnIndexes;
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| 77 | var keyColumnIndex2 = oldColumnGroup2.SortedColumnIndexes;
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| 78 |
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| 79 | this.newColumnGroup1 = new ColumnGroup(this.oldColumnGroup1.Name);
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| 80 | this.newColumnGroup2 = new ColumnGroup(this.oldColumnGroup2.Name);
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| 81 | this.newColumnGroup1.SortedColumnIndexes = this.oldColumnGroup1.SortedColumnIndexes;
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| 82 | this.newColumnGroup2.SortedColumnIndexes = this.oldColumnGroup2.SortedColumnIndexes;
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| 83 |
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| 84 | ColumnBase column;
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| 85 | foreach (ColumnBase col in this.oldColumnGroup1.Columns) {
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| 86 | column = col.CreateCopyOfColumnWithoutValues();
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| 87 | column.SortOrder = col.SortOrder;
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| 88 | this.newColumnGroup1.AddColumn(column);
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| 89 | }
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| 90 | foreach (ColumnBase col in this.oldColumnGroup2.Columns) {
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| 91 | column = col.CreateCopyOfColumnWithoutValues();
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| 92 | column.SortOrder = col.SortOrder;
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| 93 | this.newColumnGroup2.AddColumn(column);
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| 94 | }
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| 95 |
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| 96 | int compareDirection = this.oldColumnGroup1.SortOrdersForColumns.ElementAt(oldColumnGroup1.SortedColumnIndexes.ElementAt(0))
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| 97 | == SortOrder.Ascending ? -1 : +1;
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| 98 | int i = 0;
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| 99 | int j = 0;
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| 100 | IComparable[] row1;
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| 101 | IComparable[] row2;
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| 102 | while (i < oldColumnGroup1.RowCount && j < oldColumnGroup2.RowCount) {
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| 103 | //key1 < key2
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| 104 | int cmpResult = CompareRows(oldColumnGroup1, i, keyColumnIndex1, oldColumnGroup2, j, keyColumnIndex2);
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| 105 | if (cmpResult == compareDirection) {//keyColumn1.GetValue(i).CompareTo(keyColumn2.GetValue(j)) == compareDirection) {
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| 106 | row1 = this.oldColumnGroup1.GetRow(i);
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| 107 | row2 = this.oldColumnGroup2.GetEmptyRow();
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| 108 | CopyRow(row1, keyColumnIndex1, row2, keyColumnIndex2);// row2[keyColumnIndex2] = row1[keyColumnIndex1];
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| 109 | i++;
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| 110 | }
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| 111 | //key1 == key2
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| 112 | else if (/*keyColumn1.GetValue(i).CompareTo(keyColumn2.GetValue(j))*/ cmpResult == 0) {
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| 113 | row1 = this.oldColumnGroup1.GetRow(i);
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| 114 | row2 = this.oldColumnGroup2.GetRow(j);
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| 115 | bool columnGroup1Dup = false;
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| 116 | bool columnGroup2Dup = false;
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| 117 | if (i + 1 < oldColumnGroup1.RowCount) {
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| 118 | columnGroup1Dup = CompareRows(oldColumnGroup1, i, keyColumnIndex1, oldColumnGroup1, i + 1, keyColumnIndex1) == 0;
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| 119 | }
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| 120 | if (j + 1 < oldColumnGroup2.RowCount) {
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| 121 | columnGroup2Dup = CompareRows(oldColumnGroup2, j, keyColumnIndex2, oldColumnGroup2, j + 1, keyColumnIndex2) == 0;
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| 122 | }
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| 123 | if (columnGroup1Dup && !columnGroup2Dup) {
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| 124 | i++; // only advance to the row of the duplicate
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| 125 | } else if (!columnGroup1Dup && columnGroup2Dup) {
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| 126 | j++;
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| 127 | } else {
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| 128 | // either both are a duplicates or neither is
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| 129 | i++;
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| 130 | j++;
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| 131 | }
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| 132 | }
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| 133 | //key1 > key2
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| 134 | else {
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| 135 | row1 = this.oldColumnGroup1.GetEmptyRow();
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| 136 | row2 = this.oldColumnGroup2.GetRow(j);
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| 137 | CopyRow(row2, keyColumnIndex2, row1, keyColumnIndex1);// row1[keyColumnIndex1] = row2[keyColumnIndex2];
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| 138 | j++;
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| 139 | }
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| 140 | this.newColumnGroup1.AddRow(row1);
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| 141 | this.newColumnGroup2.AddRow(row2);
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| 142 | }
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| 143 | for (; i < oldColumnGroup1.RowCount; i++) {
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| 144 | this.newColumnGroup1.AddRow(this.oldColumnGroup1.GetRow(i));
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| 145 | this.newColumnGroup2.AddRow(this.oldColumnGroup2.GetEmptyRow());
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| 146 | CopyRow(newColumnGroup2.GetRow(newColumnGroup2.RowCount - 1), keyColumnIndex2, oldColumnGroup1.GetRow(i), keyColumnIndex1);
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| 147 | ChangeRow(newColumnGroup2, newColumnGroup2.RowCount - 1, keyColumnIndex2, oldColumnGroup1, i, keyColumnIndex1);
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| 148 | }
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| 149 | for (; j < oldColumnGroup2.RowCount; j++) {
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| 150 | this.newColumnGroup1.AddRow(oldColumnGroup1.GetEmptyRow());
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| 151 | this.newColumnGroup2.AddRow(oldColumnGroup2.GetRow(j));
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| 152 | ChangeRow(newColumnGroup1, newColumnGroup1.RowCount - 1, keyColumnIndex1, oldColumnGroup2, j, keyColumnIndex2);
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| 153 | }
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| 154 | }
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| 155 |
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| 156 | private void ChangeRow(ColumnGroup destGroup, int destRowIndex, IEnumerable<int> destColumnIndexes, ColumnGroup srcGroup, int srcRowIndex, IEnumerable<int> srcColumnIndexes) {
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| 157 | foreach (var indexPair in Zip(destColumnIndexes, srcColumnIndexes, (d, s) => new { DestIndex = d, SrcIndex = s })) {
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| 158 | destGroup.GetColumn(indexPair.DestIndex).ChangeValue(destRowIndex, srcGroup.GetColumn(indexPair.SrcIndex).GetValue(srcRowIndex));
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| 159 | }
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| 160 | }
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| 161 |
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| 162 | private void CopyRow(IComparable[] src, IEnumerable<int> srcIndexes, IComparable[] dest, IEnumerable<int> destIndexes) {
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| 163 | if (srcIndexes.Count() != destIndexes.Count()) throw new ArgumentException();
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| 164 | foreach (var indexPair in Zip(srcIndexes, destIndexes, (k, l) => new { First = k, Second = l })) {
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| 165 | dest[indexPair.Second] = src[indexPair.First];
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| 166 | }
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| 167 | }
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| 168 |
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| 169 | int CompareRows(ColumnGroup oldColumnGroup1, int i, IEnumerable<int> keyColumnIndex1, ColumnGroup oldColumnGroup2, int j, IEnumerable<int> keyColumnIndex2) {
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| 170 | if (keyColumnIndex1.Count() != keyColumnIndex2.Count()) throw new ArgumentException();
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| 171 | var valuePairs = from x in
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| 172 | Zip(from index in keyColumnIndex1
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| 173 | select oldColumnGroup1.GetColumn(index).GetValue(i),
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| 174 | from index in keyColumnIndex2
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| 175 | select oldColumnGroup2.GetColumn(index).GetValue(j),
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| 176 | (k, l) => new { First = k, Second = l })
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| 177 | select x;
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| 178 | foreach (var p in valuePairs) {
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| 179 | var result = p.First.CompareTo(p.Second);
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| 180 | if (result != 0) return result;
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| 181 | }
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| 182 | return 0;
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| 183 | }
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| 184 |
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| 185 |
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| 186 | private static IEnumerable<TResult> Zip<TFirst, TSecond, TResult>
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| 187 | (IEnumerable<TFirst> first,
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| 188 | IEnumerable<TSecond> second,
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| 189 | Func<TFirst, TSecond, TResult> resultSelector) {
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| 190 | using (IEnumerator<TFirst> e1 = first.GetEnumerator())
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| 191 | using (IEnumerator<TSecond> e2 = second.GetEnumerator())
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| 192 | while (e1.MoveNext() && e2.MoveNext())
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| 193 | yield return resultSelector(e1.Current, e2.Current);
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| 194 | }
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| 195 |
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| 196 | public override string Description {
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| 197 | get { return "Align column groups"; }
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| 198 | }
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| 199 | }
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| 200 | }
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