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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