insertRow method

void insertRow(int rowIndex, [ int? rowCount, ExcelInsertOptions? insertOptions ])

Inserts an empty row in the specified row index.

// Create a new Excel Document.
final Workbook workbook = Workbook();
// Accessing sheet via index.
final Worksheet sheet = workbook.worksheets[0];
Range range = sheet.getRangeByName('A1');
range.setText('Hello');
range = sheet.getRangeByName('B1');
range.setText('World');

// Insert a row
sheet.insertRow(1, 1, ExcelInsertOptions.formatAsAfter);

// Insert a column.
sheet.insertColumn(2, 1, ExcelInsertOptions.formatAsBefore);

// Save and dispose workbook.
final List<int> bytes = workbook.saveAsStream();
File('InsertRow.xlsx').writeAsBytes(bytes);
workbook.dispose();

Implementation

void insertRow(int rowIndex,
    [int? rowCount, ExcelInsertOptions? insertOptions]) {
  if (rowIndex < 1 || rowIndex > workbook._maxRowCount) {
    throw Exception('rowIndex');
  }
  rowCount ??= 1;
  if (rowCount < 0) {
    throw Exception('count');
  }
  insertOptions ??= ExcelInsertOptions.formatDefault;
  final bool isLastRow = (rowIndex + rowCount) >= workbook._maxRowCount;
  const int columnIndex = 1;
  final int lastRow = getLastRow();
  if (!isLastRow) {
    for (int count = 1; count <= rowCount; count++) {
      for (int i = lastRow + rowCount; i >= rowIndex; i--) {
        final Row? row = rows[i];
        if (row == null && i != rowIndex && rows[i - 1] != null) {
          rows[i] = Row(this);
          rows[i] = rows[i - 1];
          rows[i]!.index = rows[i]!.index + 1;
          for (int j = rows[i]!.ranges.innerList.length; j >= 1; j--) {
            final Range? range = rows[i]!.ranges[j];
            if (range != null) {
              rows[i]!.ranges[j]!.row = rows[i]!.ranges[j]!.row + 1;
              rows[i]!.ranges[j]!.lastRow = rows[i]!.ranges[j]!.lastRow + 1;
              rows[i]!.ranges[j]!.column = rows[i]!.ranges[j]!.column;
              rows[i]!.ranges[j]!.lastColumn = rows[i]!.ranges[j]!.lastColumn;
            }
          }
        } else if (row != null && i != rowIndex && rows[i - 1] != null) {
          rows[i] = rows[i - 1];
          rows[i]!.index = rows[i]!.index + 1;
          for (int j = rows[i]!.ranges.innerList.length; j >= 1; j--) {
            final Range? range = rows[i]!.ranges[j];
            if (range != null) {
              rows[i]!.ranges[j]!.row = rows[i]!.ranges[j]!.row + 1;
              rows[i]!.ranges[j]!.lastRow = rows[i]!.ranges[j]!.lastRow + 1;
              rows[i]!.ranges[j]!.column = rows[i]!.ranges[j]!.column;
              rows[i]!.ranges[j]!.lastColumn = rows[i]!.ranges[j]!.lastColumn;
            }
          }
        } else if (i == rowIndex) {
          rows[i] = Row(this);
          rows[i]!.index = rowIndex;
          if (insertOptions == ExcelInsertOptions.formatAsBefore) {
            if (rows[i - 1] != null) {
              if (rows[i - 1]!.height != 0) {
                rows[i]!.height = rows[i - 1]!.height;
              }
              for (int z = 1;
                  z <= rows[i - 1]!.ranges.innerList.length;
                  z++) {
                if (rows[i - 1]!.ranges[z] != null) {
                  rows[i]!.ranges[z] = Range(this);
                  rows[i]!.ranges[z]!._index = rows[i - 1]!.ranges[z]!._index;
                  rows[i]!.ranges[z]!.row = rows[i - 1]!.ranges[z]!.row + 1;
                  rows[i]!.ranges[z]!.lastRow =
                      rows[i - 1]!.ranges[z]!.lastRow + 1;
                  rows[i]!.ranges[z]!.column = rows[i - 1]!.ranges[z]!.column;
                  rows[i]!.ranges[z]!.lastColumn =
                      rows[i - 1]!.ranges[z]!.lastColumn;
                  rows[i]!.ranges[z]!.cellStyle =
                      rows[i - 1]!.ranges[z]!.cellStyle;
                }
              }
            }
          } else if (insertOptions == ExcelInsertOptions.formatAsAfter) {
            if (rows[i + 1] != null) {
              if (rows[i + 1]!.height != 0) {
                rows[i]!.height = rows[i + 1]!.height;
              }
              for (int z = 1;
                  z <= rows[i + 1]!.ranges.innerList.length;
                  z++) {
                if (rows[i + 1]!.ranges[z] != null) {
                  rows[i]!.ranges[z] = Range(this);
                  rows[i]!.ranges[z]!._index = rows[i + 1]!.ranges[z]!._index;
                  rows[i]!.ranges[z]!.row = rows[i + 1]!.ranges[z]!.row - 1;
                  rows[i]!.ranges[z]!.lastRow =
                      rows[i + 1]!.ranges[z]!.lastRow - 1;
                  rows[i]!.ranges[z]!.column = rows[i + 1]!.ranges[z]!.column;
                  rows[i]!.ranges[z]!.lastColumn =
                      rows[i + 1]!.ranges[z]!.lastColumn;
                  rows[i]!.ranges[z]!.cellStyle =
                      rows[i + 1]!.ranges[z]!.cellStyle;
                }
              }
            }
          } else {
            rows[i]!.ranges[columnIndex] = null;
          }
          if (hyperlinks.count > 0) {
            for (final Hyperlink link in hyperlinks.innerList) {
              if (link._attachedType == ExcelHyperlinkAttachedType.range &&
                  link._row >= rowIndex) {
                link._row = link._row + 1;
              }
            }
          }
        } else {
          rows[i] = Row(this);
          rows[i]!.index = i;
        }
      }
    }
  }
}