Class: Axlsx::Worksheet

Inherits:
Object
  • Object
show all
Includes:
OptionsParser
Defined in:
lib/axlsx/workbook/worksheet/worksheet.rb

Overview

The Worksheet class represents a worksheet in the workbook.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from OptionsParser

#parse_options

Constructor Details

#initialize(wb, options = {}) ⇒ Worksheet

Note:

the recommended way to manage worksheets is Workbook#add_worksheet

Creates a new worksheet.

Parameters:

  • options (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (options):

  • name (String) —

    The name of this worksheet.

  • page_margins (Hash) —

    A hash containing page margins for this worksheet. @see PageMargins

  • print_options (Hash) —

    A hash containing print options for this worksheet. @see PrintOptions

  • show_gridlines (Boolean) —

    indicates if gridlines should be shown for this sheet.

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 22

def initialize(wb, options={})
  self.workbook = wb
  @workbook.worksheets << self
  @sheet_protection = nil

  initialize_page_options(options)
  parse_options options
end

Instance Attribute Details

#workbook ⇒ Workbook

The workbook that owns this worksheet

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 71

def workbook
  @workbook
end

Class Method Details

.thin_chars ⇒ String

definition of characters which are less than the maximum width of 0-9 in the default font for use in String#count. This is used for autowidth calculations

Returns:

  • (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 11

def self.thin_chars
  @thin_chars ||= "^.acefijklrstxyzFIJL()-"
end

Instance Method Details

#[](cell_def) ⇒ Cell, Array

Returns the cell or cells defined using excel style A1:B3 references.

Parameters:

  • cell_def (String|Integer) —

    the string defining the cell or range of cells, or the rownumber

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 539

def [] (cell_def)
  return rows[cell_def] if cell_def.is_a?(Integer)
  parts = cell_def.split(':').map{ |part| name_to_cell part }
  if parts.size == 1
    parts.first
  else
    range(*parts)
  end
end

#add_chart(chart_type, options = {}) {|chart| ... } ⇒ Object

Note:

each chart type also specifies additional options

Adds a chart to this worksheets drawing. This is the recommended way to create charts for your worksheet. This method wraps the complexity of dealing with ooxml drawing, anchors, markers graphic frames chart objects and all the other dirty details.

Parameters:

  • chart_type (Class)
  • options (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (options):

  • start_at (Array)
  • end_at (Array)
  • title (Cell, String)
  • show_legend (Boolean)
  • style (Integer)

Yields:

  • (chart)

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 426

def add_chart(chart_type, options={})
  chart = worksheet_drawing.add_chart(chart_type, options)
  yield chart if block_given?
  chart
end

#add_comment(options = {}) ⇒ Object

Shortcut to worsksheet_comments#add_comment



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 440

def add_comment(options={})
  worksheet_comments.add_comment(options)
end

#add_conditional_formatting(cells, rules) ⇒ Object

Add conditional formatting to this worksheet.

Examples:

This would format column A whenever it is FALSE.

# for a longer example, see examples/example_conditional_formatting.rb (link below)
worksheet.add_conditional_formatting( "A1:A1048576", { :type => :cellIs, :operator => :equal, :formula => "FALSE", :dxfId => 1, :priority => 1 }

Parameters:

  • cells (String) —

    The range to apply the formatting to

  • rules (Array|Hash) —

    An array of hashes (or just one) to create Conditional formatting rules from.

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 387

def add_conditional_formatting(cells, rules)
  cf = ConditionalFormatting.new( :sqref => cells )
  cf.add_rules rules
  conditional_formattings << cf
  conditional_formattings      
end

#add_data_validation(cells, data_validation) ⇒ Object

Add data validation to this worksheet.

Parameters:

  • cells (String) —

    The cells the validation will apply to.

  • data_validation (hash) —

    options defining the validation to apply.

See Also:

  • for an example


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 399

def add_data_validation(cells, data_validation)
  dv = DataValidation.new(data_validation)
  dv.sqref = cells
  data_validations << dv
end

#add_hyperlink(options = {}) ⇒ WorksheetHyperlink

Adds a new hyperlink to the worksheet

Parameters:

  • options (Hash) (defaults to: {}) —

    for the hyperlink

Returns:

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 409

def add_hyperlink(options={})
  hyperlinks.add(options)
end

#add_image(options = {}) {|image| ... } ⇒ Object

Adds a media item to the worksheets drawing

Parameters:

  • [Hash] (Hash) —

    a customizable set of options

Yields:

  • (image) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 446

def add_image(options={})
  image = worksheet_drawing.add_image(options)
  yield image if block_given?
  image
end

#add_row(values = [], options = {}) {|@rows.last| ... } ⇒ Row Also known as: <<

Adds a row to the worksheet and updates auto fit data.

Examples:

  • put a vanilla row in your spreadsheet
ws.add_row [1, 'fish on my pl', '8']
  • specify a fixed width for a column in your spreadsheet
# The first column will ignore the content of this cell when calculating column autowidth.
# The second column will include this text in calculating the columns autowidth
# The third cell will set a fixed with of 80 for the column.
# If you need to un-fix a column width, use :auto. That will recalculate the column width based on all content in the column

ws.add_row ['I wish', 'for a fish', 'on my fish wish dish'], :widths=>[:ignore, :auto, 80]
  • specify a fixed height for a row
ws.add_row ['I wish', 'for a fish', 'on my fish wish dish'], :height => 40
  • create and use a style for all cells in the row
blue = ws.styles.add_style :color => "#00FF00"
ws.add_row [1, 2, 3], :style=>blue
  • only style some cells
blue = ws.styles.add_style :color => "#00FF00"
red = ws.styles.add_style :color => "#FF0000"
big = ws.styles.add_style :sz => 40
ws.add_row ["red fish", "blue fish", "one fish", "two fish"], :style=>[red, blue, nil, big] # the last nil is optional
  • force the second cell to be a float value
ws.add_row [3, 4, 5], :types => [nil, :float]
  • use << alias
ws << [3, 4, 5], :types => [nil, :float]

Parameters:

  • options (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (options):

  • values (Array)
  • types (Array, Symbol)
  • style (Array, Integer)
  • widths (Array) —

    each member of the widths array will affect how auto_fit behavies.

  • height (Float) —

    the row's height (in points)

Yields:

Returns:

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 368

def add_row(values=[], options={})
  Row.new(self, values, options)
  update_column_info @rows.last.cells, options.delete(:widths) || []
  yield @rows.last if block_given?
  @rows.last
end

#add_table(ref, options = {}) {|tables.last| ... } ⇒ Object

needs documentation

Yields:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 433

def add_table(ref, options={})
  tables << Table.new(ref, self, options)
  yield tables.last if block_given?
  tables.last
end

#auto_filter ⇒ Object

An range that excel will apply an autfilter to "A1:B3" This will turn filtering on for the cells in the range. The first row is considered the header, while subsequent rows are considerd to be data.

Returns:

  • String



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 108

def auto_filter
  @auto_filter ||= AutoFilter.new self
end

#auto_filter=(v) ⇒ Object

The auto filter range for the worksheet

Parameters:

  • v (String)

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 292

def auto_filter=(v)
  DataTypeValidator.validate "Worksheet.auto_filter", String, v
  auto_filter.range = v
end

#cells ⇒ Array

convinience method to access all cells in this worksheet

Returns:

  • (Array) —

    cells



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 198

def cells
  rows.flatten
end

#col_style(index, style, options = {}) ⇒ Object

Note:

You can also specify the style for specific columns in the call to add_row by using an array for the :styles option

Set the style for cells in a specific column

Parameters:

  • index (Integer) —

    the index of the column

  • style (Integer) —

    the cellXfs index

  • options (Hash) (defaults to: {})
  • [Integer] (Hash) —

    a customizable set of options

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 475

def col_style(index, style, options={})
  offset = options.delete(:row_offset) || 0
  cells = @rows[(offset..-1)].map { |row| row.cells[index] }.flatten.compact
  cells.each { |cell| cell.style = style }
end

#cols ⇒ Object

returns the sheet data as columnw



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 100

def cols
  @rows.transpose
end

#column_info ⇒ SimpleTypedList

Column info for the sheet

Returns:

  • (SimpleTypedList) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 125

def column_info
  @column_info ||= Cols.new self
end

#column_widths(*widths) ⇒ Object

Note:

For updating only a single column it is probably easier to just set the width of the ws.column_info[col_index].width directly

This is a helper method that Lets you specify a fixed width for multiple columns in a worksheet in one go. Axlsx is sparse, so if you have not set data for a column, you cannot set the width. Setting a fixed column width to nil will revert the behaviour back to calculating the width for you on the next call to add_row.

Examples:

This would set the first and third column widhts but leave the second column in autofit state.

ws.column_widths 7.2, nil, 3

Parameters:

  • widths (Integer|Float|Fixnum|nil) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 459

def column_widths(*widths)
  widths.each_with_index do |value, index|
    next if value == nil
    Axlsx::validate_unsigned_numeric(value) unless value == nil
    find_or_create_column_info(index).width = value
  end
end

#comments ⇒ Array|SimpleTypedList

The a shortcut to the worksheet_comments list of comments

Returns:

  • (Array|SimpleTypedList) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 87

def comments
  worksheet_comments.comments if worksheet_comments.has_comments?
end

#dimension ⇒ Dimension

The dimensions of a worksheet. This is not actually a required element by the spec, but at least a few other document readers expect this for conversion

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 226

def dimension
  @dimension ||= Dimension.new self
end

#drawing ⇒ Drawing

Note:

the recommended way to work with drawings and charts is Worksheet#add_chart

The drawing associated with this worksheet.

Returns:

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 325

def drawing
  worksheet_drawing.drawing
end

#fit_to_page=(v) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 276

def fit_to_page=(v)
  warn('axlsx::DEPRECIATED: Worksheet#fit_to_page has been depreciated. This value will automatically be set for you when you use PageSetup#fit_to.')
  fit_to_page?
end

#fit_to_page? ⇒ Boolean

Indicates if the worksheet will be fit by witdh or height to a specific number of pages. To alter the width or height for page fitting, please use page_setup.fit_to_widht or page_setup.fit_to_height. If you want the worksheet to fit on more pages (e.g. 2x2), set PageSetup#fit_to_width and PageSetup#fit_to_height accordingly.

Returns:

  • (Boolean) —

    Boolean

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 117

def fit_to_page?
  return false unless self.instance_values.keys.include?('page_setup')
  page_setup.fit_to_page?
end

#hyperlinks ⇒ WorksheetHyperlinks

A typed collection of hyperlinks associated with this worksheet

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 81

def hyperlinks
  @hyperlinks ||= WorksheetHyperlinks.new self
end

#index ⇒ Integer

The index of this worksheet in the owning Workbook's worksheets list.

Returns:

  • (Integer) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 317

def index
  @workbook.worksheets.index(self)
end

#initialize_page_options(options) ⇒ Object

Initalizes page margin, setup and print options

Parameters:

  • options (Hash) —

    Options passed in from the initializer



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 33

def initialize_page_options(options)
  @page_margins = PageMargins.new options[:page_margins] if options[:page_margins]
  @page_setup = PageSetup.new options[:page_setup]  if options[:page_setup]
  @print_options = PrintOptions.new options[:print_options] if options[:print_options]
end

#merge_cells(cells) ⇒ Object

Creates merge information for this worksheet. Cells can be merged by calling the merge_cells method on a worksheet.

Examples:

This would merge the three cells C1..E1 #

worksheet.merge_cells "C1:E1"
# you can also provide an array of cells to be merged
worksheet.merge_cells worksheet.rows.first.cells[(2..4)]
#alternatively you can do it from a single cell
worksheet["C1"].merge worksheet["E1"]

Parameters:

  • cells (Array, string) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 211

def merge_cells(cells)
  merged_cells.add cells
end

#name ⇒ String

The name of the worksheet

Returns:

  • (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 41

def name
  @name ||=  "Sheet" + (index+1).to_s
end

#name=(name) ⇒ Object

The name of the worksheet The name of a worksheet must be unique in the workbook, and must not exceed 31 characters

Parameters:

  • name (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 284

def name=(name)
  validate_sheet_name name
  @name=Axlsx::coder.encode(name)
end

#name_to_cell(name) ⇒ Cell

returns the column and row index for a named based cell

Parameters:

  • name (String) —

    The cell or cell range to return. "A1" will return the first cell of the first row.

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 552

def name_to_cell(name)
  col_index, row_index = *Axlsx::name_to_indices(name)
  r = rows[row_index]
  r.cells[col_index] if r
end

#page_margins {|@page_margins| ... } ⇒ PageMargins

Page margins for printing the worksheet.

Examples:

wb = Axlsx::Package.new.workbook
# using options when creating the worksheet.
ws = wb.add_worksheet :page_margins => {:left => 1.9, :header => 0.1}

# use the set method of the page_margins object
ws.page_margins.set(:bottom => 3, :footer => 0.7)

# set page margins in a block
ws.page_margins do |margins|
  margins.right = 6
  margins.top = 0.2
end

Yields:

Returns:

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 145

def page_margins
  @page_margins ||= PageMargins.new
  yield @page_margins if block_given?
  @page_margins
end

#page_setup {|@page_setup| ... } ⇒ PageSetup

Page setup settings for printing the worksheet.

Examples:

wb = Axlsx::Package.new.workbook

# using options when creating the worksheet.
ws = wb.add_worksheet :page_setup => {:fit_to_width => 2, :orientation => :landscape}

# use the set method of the page_setup object
ws.page_setup.set(:paper_width => "297mm", :paper_height => "210mm")

# setup page in a block
ws.page_setup do |page|
  page.scale = 80
  page.orientation = :portrait
end

Yields:

Returns:

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 168

def page_setup
  @page_setup ||= PageSetup.new
  yield @page_setup if block_given?
  @page_setup
end

#pn ⇒ String

The part name of this worksheet

Returns:

  • (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 299

def pn
  "#{WORKSHEET_PN % (index+1)}"
end

#print_options {|@print_options| ... } ⇒ PrintOptions

Options for printing the worksheet.

Examples:

wb = Axlsx::Package.new.workbook
# using options when creating the worksheet.
ws = wb.add_worksheet :print_options => {:grid_lines => true, :horizontal_centered => true}

# use the set method of the page_margins object
ws.print_options.set(:headings => true)

# set page margins in a block
ws.print_options do |options|
  options.horizontal_centered = true
  options.vertical_centered = true
end

Yields:

Returns:

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 190

def print_options
  @print_options ||= PrintOptions.new
  yield @print_options if block_given?
  @print_options
end

#protect_range(cells) ⇒ ProtectedRange

Note:

When using an array of cells, a contiguous range is created from the minimum top left to the maximum top bottom of the cells provided.

Adds a new protected cell range to the worksheet. Note that protected ranges are only in effect when sheet protection is enabled.

Parameters:

  • cells (String|Array) —

    The string reference for the cells to protect or an array of cells.

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 219

def protect_range(cells)
  protected_ranges.add_range(cells)
end

#relationships ⇒ Relationships

The worksheet relationships. This is managed automatically by the worksheet

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 519

def relationships
  r = Relationships.new
  r + [tables.relationships,
       worksheet_comments.relationships,
       hyperlinks.relationships,
       worksheet_drawing.relationship].flatten.compact || []
  r
end

#relationships_index_of(object) ⇒ Integer

identifies the index of an object withing the collections used in generating relationships for the worksheet

Parameters:

  • object (Any) —

    the object to search for

Returns:

  • (Integer) —

    The index of the object



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 531

def relationships_index_of(object)
  objects = [tables.to_a, worksheet_comments.comments.to_a, hyperlinks.to_a, worksheet_drawing.drawing].flatten.compact || []
  objects.index(object)
end

#rels_pn ⇒ String

The relationship part name of this worksheet

Returns:

  • (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 305

def rels_pn
  "#{WORKSHEET_RELS_PN % (index+1)}"
end

#rId ⇒ String

The relationship Id of thiw worksheet

Returns:

  • (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 311

def rId
  "rId#{index+1}"
end

#row_style(index, style, options = {}) ⇒ Object

Note:

You can also specify the style in the add_row call

Set the style for cells in a specific row

Parameters:

  • index (Integer) —

    or range of indexes in the table

  • style (Integer) —

    the cellXfs index

  • options (Hash) (defaults to: {}) —

    the options used when applying the style

  • [Integer] (Hash) —

    a customizable set of options

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 489

def row_style(index, style, options={})
  offset = options.delete(:col_offset) || 0
  cells = cols[(offset..-1)].map { |column| column[index] }.flatten.compact
  cells.each { |cell| cell.style = style }
end

#rows ⇒ SimpleTypedList

Note:

The recommended way to manage rows is Worksheet#add_row

The rows in this worksheet

Returns:

  • (SimpleTypedList)

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 95

def rows
  @rows ||=  SimpleTypedList.new Row
end

#sanitize(str) ⇒ String

returns the provided string with all invalid control charaters removed.

Parameters:

  • str (String) —

    The sting to process

Returns:

  • (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 513

def sanitize(str)
  str.gsub(CONTROL_CHAR_REGEX, '')
end

#selected ⇒ Object

Deprecated.

Use SheetView#tab_selected instead.

Indicates if the worksheet is selected in the workbook It is possible to have more than one worksheet selected, however it might cause issues in some older versions of excel when using copy and paste.

Returns:

  • Boolean



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 269

def selected
  warn('axlsx::DEPRECIATED: Worksheet#selected has been depreciated. This value can get over SheetView#tab_selected.')
  sheet_view.tab_selected
end

#selected=(v) ⇒ Boolean

Deprecated.

Use SheetView#tab_selected= instead.

Returns:

  • (Boolean)

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 250

def selected=(v)
  warn('axlsx::DEPRECIATED: Worksheet#selected= has been depreciated. This value can be set over SheetView#tab_selected=.')
  Axlsx::validate_boolean v
  sheet_view.tab_selected = v
end

#sheet_calc_pr ⇒ SheetCalcPr

The sheet calculation properties

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 47

def sheet_calc_pr
  @sheet_calc_pr ||= SheetCalcPr.new
end

#sheet_pr ⇒ SheetPr

The sheet properties for this workbook. Currently only pageSetUpPr -> fitToPage is implemented

Returns:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 233

def sheet_pr
  @sheet_pr ||= SheetPr.new self
end

#sheet_protection {|@sheet_protection| ... } ⇒ SheetProtection

The sheet protection object for this workbook

Yields:

Returns:

See Also:



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 54

def sheet_protection
  @sheet_protection ||= SheetProtection.new
  yield @sheet_protection if block_given?
  @sheet_protection
end

#sheet_view {|@sheet_view| ... } ⇒ SheetView

The sheet view object for this worksheet

Yields:

Returns:

See Also:

  • [SheetView]


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 63

def sheet_view
  @sheet_view ||= SheetView.new
  yield @sheet_view if block_given?
  @sheet_view
end

#show_gridlines ⇒ Object

Deprecated.

Use SheetView#show_grid_lines instead.

Indicates if the worksheet should show gridlines or not

Returns:

  • Boolean



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 259

def show_gridlines
  warn('axlsx::DEPRECIATED: Worksheet#show_gridlines has been depreciated. This value can get over SheetView#show_grid_lines.')
  sheet_view.show_grid_lines
end

#show_gridlines=(v) ⇒ Boolean

Deprecated.

Use SheetView#show_grid_lines= instead.

Indicates if gridlines should be shown in the sheet. This is true by default.

Returns:

  • (Boolean) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 241

def show_gridlines=(v)
  warn('axlsx::DEPRECIATED: Worksheet#show_gridlines= has been depreciated. This value can be set over SheetView#show_grid_lines=.')
  Axlsx::validate_boolean v
  sheet_view.show_grid_lines = v
end

#styles ⇒ Object

shortcut method to access styles direclty from the worksheet This lets us do stuff like:

Examples:

p = Axlsx::Package.new
p.workbook.add_worksheet(:name => 'foo') do |sheet|
  my_style = sheet.styles.add_style { :bg_color => "FF0000" }
  sheet.add_row ['Oh No!'], :styles => my_style
end
p.serialize 'foo.xlsx'


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 567

def styles
  @styles ||= self.workbook.styles
end

#tables ⇒ Array

The tables in this worksheet

Returns:

  • (Array) —

    of Table



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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 75

def tables
  @tables ||=  Tables.new self
end

#to_xml_string ⇒ String

Serializes the worksheet object to an xml string This intentionally does not use nokogiri for performance reasons

Returns:

  • (String) 


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# File 'lib/axlsx/workbook/worksheet/worksheet.rb', line 498

def to_xml_string
  auto_filter.apply if auto_filter.range
  str = '<?xml version="1.0" encoding="UTF-8"?>'
  str << worksheet_node
  serializable_parts.each do |item|
    item.to_xml_string(str) if item
  end
  str << '</worksheet>'
  sanitize(str)
end