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## org.apache.poi.ss.usermodel
Interface Sheet

All Superinterfaces:
  Iterable

All Known Implementing Classes:
  HSSFSheet

    public interface Sheet

extends Iterable

High level representation of a Excel worksheet.

Sheets are the central structures within a workbook, and are where a user does most of his spreadsheet work. The most common type of sheet is the worksheet, which is represented as a grid of cells. Worksheet cells can contain text, numbers, dates, and formulas. Cells can also be formatted.

Field Summary
`static short` | `BottomMargin`
`static short` | `FooterMargin`
`static short` | `HeaderMargin`
`static short` | `LeftMargin`
`static byte` | `PANE_LOWER_LEFT`
`static byte` | `PANE_LOWER_RIGHT`
`static byte` | `PANE_UPPER_LEFT`
`static byte` | `PANE_UPPER_RIGHT`
`static short` | `RightMargin`
`static short` | `TopMargin`

Method Summary
`int` | `addMergedRegion(CellRangeAddress region)` Adds a merged region of cells (hence those cells form one)
`void` | `addValidationData(DataValidation dataValidation)` Creates a data validation object
`void` | `autoSizeColumn(int column)` Adjusts the column width to fit the contents.
`void` | `autoSizeColumn(int column, boolean useMergedCells)` Adjusts the column width to fit the contents.
`Drawing` | `createDrawingPatriarch()` Creates the top-level drawing patriarch.
`void` | `createFreezePane(int colSplit, int rowSplit)` Creates a split (freezepane).
`void` | `createFreezePane(int colSplit, int rowSplit, int leftmostColumn, int topRow)` Creates a split (freezepane).
`Row` | `createRow(int rownum)` Create a new row within the sheet and return the high level representation
`void` | `createSplitPane(int xSplitPos, int ySplitPos, int leftmostColumn, int topRow, int activePane)` Creates a split pane.
`boolean` | `getAutobreaks()` Flag indicating whether the sheet displays Automatic Page Breaks.
`Comment` | `getCellComment(int row, int column)` Returns cell comment for the specified row and column
`int[]` | `getColumnBreaks()` Retrieves all the vertical page breaks
`CellStyle` | `getColumnStyle(int column)` Returns the CellStyle that applies to the given (0 based) column, or null if no style has been set for that column
`int` | `getColumnWidth(int columnIndex)` get the width (in units of 1/256th of a character width )
`DataValidationHelper` | `getDataValidationHelper()`
`int` | `getDefaultColumnWidth()` Get the default column width for the sheet (if the columns do not define their own width) in characters
`short` | `getDefaultRowHeight()` Get the default row height for the sheet (if the rows do not define their own height) in twips (1/20 of a point)
`float` | `getDefaultRowHeightInPoints()` Get the default row height for the sheet (if the rows do not define their own height) in points.
`boolean` | `getDisplayGuts()` Get whether to display the guts or not, default value is true
`int` | `getFirstRowNum()` Gets the first row on the sheet
`boolean` | `getFitToPage()` Flag indicating whether the Fit to Page print option is enabled.
`Footer` | `getFooter()` Gets the user model for the default document footer.
`Header` | `getHeader()` Gets the user model for the default document header.
`boolean` | `getHorizontallyCenter()` Determine whether printed output for this sheet will be horizontally centered.
`int` | `getLastRowNum()` Gets the last row on the sheet
`short` | `getLeftCol()` The left col in the visible view when the sheet is first viewed after opening it in a viewer
`double` | `getMargin(short margin)` Gets the size of the margin in inches.
`CellRangeAddress` | `getMergedRegion(int index)` Returns the merged region at the specified index
`int` | `getNumMergedRegions()` Returns the number of merged regions
`PaneInformation` | `getPaneInformation()` Returns the information regarding the currently configured pane (split or freeze)
`int` | `getPhysicalNumberOfRows()` Returns the number of physically defined rows (NOT the number of rows in the sheet)
`PrintSetup` | `getPrintSetup()` Gets the print setup object.
`boolean` | `getProtect()` Answer whether protection is enabled or disabled
`Row` | `getRow(int rownum)` Returns the logical row (not physical) 0-based.
`int[]` | `getRowBreaks()` Retrieves all the horizontal page breaks
`boolean` | `getRowSumsBelow()` Flag indicating whether summary rows appear below detail in an outline, when applying an outline.
`boolean` | `getRowSumsRight()` Flag indicating whether summary columns appear to the right of detail in an outline, when applying an outline.
`boolean` | `getScenarioProtect()` Answer whether scenario protection is enabled or disabled
`java.lang.String` | `getSheetName()` Returns the name of this sheet
`short` | `getTopRow()` The top row in the visible view when the sheet is first viewed after opening it in a viewer
`boolean` | `getVerticallyCenter()` Determine whether printed output for this sheet will be vertically centered.
`Workbook` | `getWorkbook()` Return the parent workbook
`void` | `groupColumn(int fromColumn, int toColumn)` Create an outline for the provided column range.
`void` | `groupRow(int fromRow, int toRow)` Tie a range of rows together so that they can be collapsed or expanded
`boolean` | `isColumnBroken(int column)` Determines if there is a page break at the indicated column
`boolean` | `isColumnHidden(int columnIndex)` Get the hidden state for a given column
`boolean` | `isDisplayFormulas()` Returns if formulas are displayed
`boolean` | `isDisplayGridlines()` Returns if gridlines are displayed
`boolean` | `isDisplayRowColHeadings()` Returns if RowColHeadings are displayed.
`boolean` | `isDisplayZeros()` Gets the flag indicating whether the window should show 0 (zero) in cells containing zero value.
`boolean` | `isPrintGridlines()` Gets the flag indicating whether this sheet displays the lines between rows and columns to make editing and reading easier.
`boolean` | `isRowBroken(int row)` Determines if there is a page break at the indicated row
`boolean` | `isSelected()` Note - this is not the same as whether the sheet is focused (isActive)
`void` | `protectSheet(java.lang.String password)` Sets the protection enabled as well as the password
`CellRange` | `removeArrayFormula(Cell cell)` Remove a Array Formula from this sheet.
`void` | `removeColumnBreak(int column)` Removes a page break at the indicated column
`void` | `removeMergedRegion(int index)` Removes a merged region of cells (hence letting them free)
`void` | `removeRow(Row row)` Remove a row from this sheet.
`void` | `removeRowBreak(int row)` Removes the page break at the indicated row
`java.util.Iterator` | `rowIterator()` Returns an iterator of the physical rows
`CellRange` | `setArrayFormula(java.lang.String formula, CellRangeAddress range)` Sets array formula to specified region for result.
`void` | `setAutobreaks(boolean value)` Flag indicating whether the sheet displays Automatic Page Breaks.
`AutoFilter` | `setAutoFilter(CellRangeAddress range)` Enable filtering for a range of cells
`void` | `setColumnBreak(int column)` Sets a page break at the indicated column
`void` | `setColumnGroupCollapsed(int columnNumber, boolean collapsed)` Expands or collapses a column group.
`void` | `setColumnHidden(int columnIndex, boolean hidden)` Get the visibility state for a given column
`void` | `setColumnWidth(int columnIndex, int width)` Set the width (in units of 1/256th of a character width)
`void` | `setDefaultColumnStyle(int column, CellStyle style)` Sets the default column style for a given column.
`void` | `setDefaultColumnWidth(int width)` Set the default column width for the sheet (if the columns do not define their own width) in characters
`void` | `setDefaultRowHeight(short height)` Set the default row height for the sheet (if the rows do not define their own height) in twips (1/20 of a point)
`void` | `setDefaultRowHeightInPoints(float height)` Set the default row height for the sheet (if the rows do not define their own height) in points
`void` | `setDisplayFormulas(boolean show)` Sets whether the formulas are shown in a viewer
`void` | `setDisplayGridlines(boolean show)` Sets whether the gridlines are shown in a viewer
`void` | `setDisplayGuts(boolean value)` Set whether to display the guts or not
`void` | `setDisplayRowColHeadings(boolean show)` Sets whether the RowColHeadings are shown in a viewer
`void` | `setDisplayZeros(boolean value)` Set whether the window should show 0 (zero) in cells containing zero value.
`void` | `setFitToPage(boolean value)` Flag indicating whether the Fit to Page print option is enabled.
`void` | `setHorizontallyCenter(boolean value)` Determines whether the output is horizontally centered on the page.
`void` | `setMargin(short margin, double size)` Sets the size of the margin in inches.
`void` | `setPrintGridlines(boolean show)` Sets the flag indicating whether this sheet should display the lines between rows and columns to make editing and reading easier.
`void` | `setRowBreak(int row)` Sets a page break at the indicated row
`void` | `setRowGroupCollapsed(int row, boolean collapse)` Set view state of a groupped range of rows
`void` | `setRowSumsBelow(boolean value)` Flag indicating whether summary rows appear below detail in an outline, when applying an outline.
`void` | `setRowSumsRight(boolean value)` Flag indicating whether summary columns appear to the right of detail in an outline, when applying an outline.
`void` | `setSelected(boolean value)` Sets a flag indicating whether this sheet is selected.
`void` | `setVerticallyCenter(boolean value)` Determines whether the output is vertically centered on the page.
`void` | `setZoom(int numerator, int denominator)` Sets the zoom magnication for the sheet.
`void` | `shiftRows(int startRow, int endRow, int n)` Shifts rows between startRow and endRow n number of rows.
`void` | `shiftRows(int startRow, int endRow, int n, boolean copyRowHeight, boolean resetOriginalRowHeight)` Shifts rows between startRow and endRow n number of rows.
`void` | `showInPane(short toprow, short leftcol)` Sets desktop window pane display area, when the file is first opened in a viewer.
`void` | `ungroupColumn(int fromColumn, int toColumn)` Ungroup a range of columns that were previously groupped
`void` | `ungroupRow(int fromRow, int toRow)` Ungroup a range of rows that were previously groupped

Methods inherited from interface poi.support.Iterable
`iterator`

Field Detail

### LeftMargin

    static final short LeftMargin

See Also:
  Constant Field Values

### RightMargin

    static final short RightMargin

See Also:
  Constant Field Values

### TopMargin

    static final short TopMargin

See Also:
  Constant Field Values

### BottomMargin

    static final short BottomMargin

See Also:
  Constant Field Values

### HeaderMargin

    static final short HeaderMargin

See Also:
  Constant Field Values

### FooterMargin

    static final short FooterMargin

See Also:
  Constant Field Values

### PANE_LOWER_RIGHT

    static final byte PANE_LOWER_RIGHT

See Also:
  Constant Field Values

### PANE_UPPER_RIGHT

    static final byte PANE_UPPER_RIGHT

See Also:
  Constant Field Values

### PANE_LOWER_LEFT

    static final byte PANE_LOWER_LEFT

See Also:
  Constant Field Values

### PANE_UPPER_LEFT

    static final byte PANE_UPPER_LEFT

See Also:
  Constant Field Values

Method Detail

### createRow

    Row createRow(int rownum)

  Create a new row within the sheet and return the high level representation

  Parameters:
    `rownum` - row number
  Returns:
    high level Row object representing a row in the sheet
  See Also:
    `removeRow(Row)`

### removeRow

    void removeRow(Row row)

  Remove a row from this sheet. All cells contained in the row are removed as well

  Parameters:
    `row` - representing a row to remove.

### getRow

    Row getRow(int rownum)

  Returns the logical row (not physical) 0-based. If you ask for a row that is not defined you get a null. This is to say row 4 represents the fifth row on a sheet.

  Parameters:
    `rownum` - row to get (0-based)
  Returns:
    Row representing the rownumber or null if its not defined on the sheet

### getPhysicalNumberOfRows

    int getPhysicalNumberOfRows()

  Returns the number of physically defined rows (NOT the number of rows in the sheet)

  Returns:
    the number of physically defined rows in this sheet

### getFirstRowNum

    int getFirstRowNum()

  Gets the first row on the sheet

  Returns:
    the number of the first logical row on the sheet (0-based)

### getLastRowNum

    int getLastRowNum()

  Gets the last row on the sheet

  Returns:
    last row contained n this sheet (0-based)

### setColumnHidden

    void setColumnHidden(int columnIndex,
                         boolean hidden)

  Get the visibility state for a given column

  Parameters:
    `columnIndex` - - the column to get (0-based)
    `hidden` - - the visiblity state of the column

### isColumnHidden

    boolean isColumnHidden(int columnIndex)

  Get the hidden state for a given column

  Parameters:
    `columnIndex` - - the column to set (0-based)
  Returns:
    hidden - `false` if the column is visible

### setColumnWidth

    void setColumnWidth(int columnIndex,
                        int width)

  Set the width (in units of 1/256th of a character width)

  The maximum column width for an individual cell is 255 characters. This value represents the number of characters that can be displayed in a cell that is formatted with the standard font.

  Parameters:
    `columnIndex` - - the column to set (0-based)
    `width` - - the width in units of 1/256th of a character width

### getColumnWidth

    int getColumnWidth(int columnIndex)

  get the width (in units of 1/256th of a character width )

  Parameters:
    `columnIndex` - - the column to set (0-based)
  Returns:
    width - the width in units of 1/256th of a character width

### setDefaultColumnWidth

    void setDefaultColumnWidth(int width)

  Set the default column width for the sheet (if the columns do not define their own width) in characters

  Parameters:
    `width` - default column width measured in characters

### getDefaultColumnWidth

    int getDefaultColumnWidth()

  Get the default column width for the sheet (if the columns do not define their own width) in characters

  Returns:
    default column width measured in characters

### getDefaultRowHeight

    short getDefaultRowHeight()

  Get the default row height for the sheet (if the rows do not define their own height) in twips (1/20 of a point)

  Returns:
    default row height measured in twips (1/20 of a point)

### getDefaultRowHeightInPoints

    float getDefaultRowHeightInPoints()

  Get the default row height for the sheet (if the rows do not define their own height) in points.

  Returns:
    default row height in points

### setDefaultRowHeight

    void setDefaultRowHeight(short height)

  Set the default row height for the sheet (if the rows do not define their own height) in twips (1/20 of a point)

  Parameters:
    `height` - default row height measured in twips (1/20 of a point)

### setDefaultRowHeightInPoints

    void setDefaultRowHeightInPoints(float height)

  Set the default row height for the sheet (if the rows do not define their own height) in points

  Parameters:
    `height` - default row height

### getColumnStyle

    CellStyle getColumnStyle(int column)

  Returns the CellStyle that applies to the given (0 based) column, or null if no style has been set for that column

### addMergedRegion

    int addMergedRegion(CellRangeAddress region)

  Adds a merged region of cells (hence those cells form one)

  Parameters:
    `region` - (rowfrom/colfrom-rowto/colto) to merge
  Returns:
    index of this region

### setVerticallyCenter

    void setVerticallyCenter(boolean value)

  Determines whether the output is vertically centered on the page.

  Parameters:
    `value` - true to vertically center, false otherwise.

### setHorizontallyCenter

    void setHorizontallyCenter(boolean value)

  Determines whether the output is horizontally centered on the page.

  Parameters:
    `value` - true to horizontally center, false otherwise.

### getHorizontallyCenter

    boolean getHorizontallyCenter()

  Determine whether printed output for this sheet will be horizontally centered.

### getVerticallyCenter

    boolean getVerticallyCenter()

  Determine whether printed output for this sheet will be vertically centered.

### removeMergedRegion

    void removeMergedRegion(int index)

  Removes a merged region of cells (hence letting them free)

  Parameters:
    `index` - of the region to unmerge

### getNumMergedRegions

    int getNumMergedRegions()

  Returns the number of merged regions

  Returns:
    number of merged regions

### getMergedRegion

    CellRangeAddress getMergedRegion(int index)

  Returns the merged region at the specified index

  Returns:
    the merged region at the specified index

### rowIterator

    java.util.Iterator rowIterator()

  Returns an iterator of the physical rows

  Returns:
    an iterator of the PHYSICAL rows. Meaning the 3rd element may not be the third row if say for instance the second row is undefined.

### setAutobreaks

    void setAutobreaks(boolean value)

  Flag indicating whether the sheet displays Automatic Page Breaks.

  Parameters:
    `value` - `true` if the sheet displays Automatic Page Breaks.

### setDisplayGuts

    void setDisplayGuts(boolean value)

  Set whether to display the guts or not

  Parameters:
    `value` - - guts or no guts

### setDisplayZeros

    void setDisplayZeros(boolean value)

  Set whether the window should show 0 (zero) in cells containing zero value. When false, cells with zero value appear blank instead of showing the number zero.

  Parameters:
    `value` - whether to display or hide all zero values on the worksheet

### isDisplayZeros

    boolean isDisplayZeros()

  Gets the flag indicating whether the window should show 0 (zero) in cells containing zero value. When false, cells with zero value appear blank instead of showing the number zero.

  Returns:
    whether all zero values on the worksheet are displayed

### setFitToPage

    void setFitToPage(boolean value)

  Flag indicating whether the Fit to Page print option is enabled.

  Parameters:
    `value` - `true` if the Fit to Page print option is enabled.

### setRowSumsBelow

    void setRowSumsBelow(boolean value)

  Flag indicating whether summary rows appear below detail in an outline, when applying an outline.

  When true a summary row is inserted below the detailed data being summarized and a new outline level is established on that row.

  When false a summary row is inserted above the detailed data being summarized and a new outline level is established on that row.

  Parameters:
    `value` - `true` if row summaries appear below detail in the outline

### setRowSumsRight

    void setRowSumsRight(boolean value)

  Flag indicating whether summary columns appear to the right of detail in an outline, when applying an outline.

  When true a summary column is inserted to the right of the detailed data being summarized and a new outline level is established on that column.

  When false a summary column is inserted to the left of the detailed data being summarized and a new outline level is established on that column.

  Parameters:
    `value` - `true` if col summaries appear right of the detail in the outline

### getAutobreaks

    boolean getAutobreaks()

  Flag indicating whether the sheet displays Automatic Page Breaks.

  Returns:
    `true` if the sheet displays Automatic Page Breaks.

### getDisplayGuts

    boolean getDisplayGuts()

  Get whether to display the guts or not, default value is true

  Returns:
    boolean - guts or no guts

### getFitToPage

    boolean getFitToPage()

  Flag indicating whether the Fit to Page print option is enabled.

  Returns:
    `true` if the Fit to Page print option is enabled.

### getRowSumsBelow

    boolean getRowSumsBelow()

  Flag indicating whether summary rows appear below detail in an outline, when applying an outline.

  When true a summary row is inserted below the detailed data being summarized and a new outline level is established on that row.

  When false a summary row is inserted above the detailed data being summarized and a new outline level is established on that row.

  Returns:
    `true` if row summaries appear below detail in the outline

### getRowSumsRight

    boolean getRowSumsRight()

  Flag indicating whether summary columns appear to the right of detail in an outline, when applying an outline.

  When true a summary column is inserted to the right of the detailed data being summarized and a new outline level is established on that column.

  When false a summary column is inserted to the left of the detailed data being summarized and a new outline level is established on that column.

  Returns:
    `true` if col summaries appear right of the detail in the outline

### isPrintGridlines

    boolean isPrintGridlines()

  Gets the flag indicating whether this sheet displays the lines between rows and columns to make editing and reading easier.

  Returns:
    `true` if this sheet displays gridlines.
  See Also:
    `to check if printing of gridlines is turned on or off`

### setPrintGridlines

    void setPrintGridlines(boolean show)

  Sets the flag indicating whether this sheet should display the lines between rows and columns to make editing and reading easier. To turn printing of gridlines use `setPrintGridlines(boolean)`

  Parameters:
    `show` - `true` if this sheet should display gridlines.
  See Also:
    `setPrintGridlines(boolean)`

### getPrintSetup

    PrintSetup getPrintSetup()

  Gets the print setup object.

  Returns:
    The user model for the print setup object.

### getHeader

    Header getHeader()

  Gets the user model for the default document header.

  Note that XSSF offers more kinds of document headers than HSSF does

  Returns:
    the document header. Never `null`

### getFooter

    Footer getFooter()

  Gets the user model for the default document footer.

  Note that XSSF offers more kinds of document footers than HSSF does.

  Returns:
    the document footer. Never `null`

### setSelected

    void setSelected(boolean value)

  Sets a flag indicating whether this sheet is selected.

  Note: multiple sheets can be selected, but only one sheet can be active at one time.

  Parameters:
    `value` - `true` if this sheet is selected
  See Also:
    `Workbook.setActiveSheet(int)`

### getMargin

    double getMargin(short margin)

  Gets the size of the margin in inches.

  Parameters:
    `margin` - which margin to get
  Returns:
    the size of the margin

### setMargin

    void setMargin(short margin,
                   double size)

  Sets the size of the margin in inches.

  Parameters:
    `margin` - which margin to get
    `size` - the size of the margin

### getProtect

    boolean getProtect()

  Answer whether protection is enabled or disabled

  Returns:
    true => protection enabled; false => protection disabled

### protectSheet

    void protectSheet(java.lang.String password)

  Sets the protection enabled as well as the password

  Parameters:
    `password` - to set for protection. Pass `null` to remove protection

### getScenarioProtect

    boolean getScenarioProtect()

  Answer whether scenario protection is enabled or disabled

  Returns:
    true => protection enabled; false => protection disabled

### setZoom

    void setZoom(int numerator,
                 int denominator)

  Sets the zoom magnication for the sheet. The zoom is expressed as a fraction. For example to express a zoom of 75% use 3 for the numerator and 4 for the denominator.

  Parameters:
    `numerator` - The numerator for the zoom magnification.
    `denominator` - The denominator for the zoom magnification.

### getTopRow

    short getTopRow()

  The top row in the visible view when the sheet is first viewed after opening it in a viewer

  Returns:
    short indicating the rownum (0 based) of the top row

### getLeftCol

    short getLeftCol()

  The left col in the visible view when the sheet is first viewed after opening it in a viewer

  Returns:
    short indicating the rownum (0 based) of the top row

### showInPane

    void showInPane(short toprow,
                    short leftcol)

  Sets desktop window pane display area, when the file is first opened in a viewer.

  Parameters:
    `toprow` - the top row to show in desktop window pane
    `leftcol` - the left column to show in desktop window pane

### shiftRows

    void shiftRows(int startRow,
                   int endRow,
                   int n)

  Shifts rows between startRow and endRow n number of rows. If you use a negative number, it will shift rows up. Code ensures that rows don't wrap around. Calls shiftRows(startRow, endRow, n, false, false);

  Additionally shifts merged regions that are completely defined in these rows (ie. merged 2 cells on a row to be shifted).

  Parameters:
    `startRow` - the row to start shifting
    `endRow` - the row to end shifting
    `n` - the number of rows to shift

### shiftRows

    void shiftRows(int startRow,
                   int endRow,
                   int n,
                   boolean copyRowHeight,
                   boolean resetOriginalRowHeight)

  Shifts rows between startRow and endRow n number of rows. If you use a negative number, it will shift rows up. Code ensures that rows don't wrap around

  Additionally shifts merged regions that are completely defined in these rows (ie. merged 2 cells on a row to be shifted).

  Parameters:
    `startRow` - the row to start shifting
    `endRow` - the row to end shifting
    `n` - the number of rows to shift
    `copyRowHeight` - whether to copy the row height during the shift
    `resetOriginalRowHeight` - whether to set the original row's height to the default

### createFreezePane

    void createFreezePane(int colSplit,
                          int rowSplit,
                          int leftmostColumn,
                          int topRow)

  Creates a split (freezepane). Any existing freezepane or split pane is overwritten.

  Parameters:
    `colSplit` - Horizonatal position of split.
    `rowSplit` - Vertical position of split.
    `leftmostColumn` - Left column visible in right pane.
    `topRow` - Top row visible in bottom pane

### createFreezePane

    void createFreezePane(int colSplit,
                          int rowSplit)

  Creates a split (freezepane). Any existing freezepane or split pane is overwritten.

  Parameters:
    `colSplit` - Horizonatal position of split.
    `rowSplit` - Vertical position of split.

### createSplitPane

    void createSplitPane(int xSplitPos,
                         int ySplitPos,
                         int leftmostColumn,
                         int topRow,
                         int activePane)

  Creates a split pane. Any existing freezepane or split pane is overwritten.

  Parameters:
    `xSplitPos` - Horizonatal position of split (in 1/20th of a point).
    `ySplitPos` - Vertical position of split (in 1/20th of a point).
    `topRow` - Top row visible in bottom pane
    `leftmostColumn` - Left column visible in right pane.
    `activePane` - Active pane. One of: PANE_LOWER_RIGHT, PANE_UPPER_RIGHT, PANE_LOWER_LEFT, PANE_UPPER_LEFT
  See Also:
    `PANE_LOWER_LEFT`, `PANE_LOWER_RIGHT`, `PANE_UPPER_LEFT`, `PANE_UPPER_RIGHT`

### getPaneInformation

    PaneInformation getPaneInformation()

  Returns the information regarding the currently configured pane (split or freeze)

  Returns:
    null if no pane configured, or the pane information.

### setDisplayGridlines

    void setDisplayGridlines(boolean show)

  Sets whether the gridlines are shown in a viewer

  Parameters:
    `show` - whether to show gridlines or not

### isDisplayGridlines

    boolean isDisplayGridlines()

  Returns if gridlines are displayed

  Returns:
    whether gridlines are displayed

### setDisplayFormulas

    void setDisplayFormulas(boolean show)

  Sets whether the formulas are shown in a viewer

  Parameters:
    `show` - whether to show formulas or not

### isDisplayFormulas

    boolean isDisplayFormulas()

  Returns if formulas are displayed

  Returns:
    whether formulas are displayed

### setDisplayRowColHeadings

    void setDisplayRowColHeadings(boolean show)

  Sets whether the RowColHeadings are shown in a viewer

  Parameters:
    `show` - whether to show RowColHeadings or not

### isDisplayRowColHeadings

    boolean isDisplayRowColHeadings()

  Returns if RowColHeadings are displayed.

  Returns:
    whether RowColHeadings are displayed

### setRowBreak

    void setRowBreak(int row)

  Sets a page break at the indicated row

  Parameters:
    `row` - FIXME: Document this!

### isRowBroken

    boolean isRowBroken(int row)

  Determines if there is a page break at the indicated row

  Parameters:
    `row` - FIXME: Document this!
  Returns:
    FIXME: Document this!

### removeRowBreak

    void removeRowBreak(int row)

  Removes the page break at the indicated row

  Parameters:
    `row` -

### getRowBreaks

    int[] getRowBreaks()

  Retrieves all the horizontal page breaks

  Returns:
    all the horizontal page breaks, or null if there are no row page breaks

### getColumnBreaks

    int[] getColumnBreaks()

  Retrieves all the vertical page breaks

  Returns:
    all the vertical page breaks, or null if there are no column page breaks

### setColumnBreak

    void setColumnBreak(int column)

  Sets a page break at the indicated column

  Parameters:
    `column` -

### isColumnBroken

    boolean isColumnBroken(int column)

  Determines if there is a page break at the indicated column

  Parameters:
    `column` - FIXME: Document this!
  Returns:
    FIXME: Document this!

### removeColumnBreak

    void removeColumnBreak(int column)

  Removes a page break at the indicated column

  Parameters:
    `column` -

### setColumnGroupCollapsed

    void setColumnGroupCollapsed(int columnNumber,
                                 boolean collapsed)

  Expands or collapses a column group.

  Parameters:
    `columnNumber` - One of the columns in the group.
    `collapsed` - true = collapse group, false = expand group.

### groupColumn

    void groupColumn(int fromColumn,
                     int toColumn)

  Create an outline for the provided column range.

  Parameters:
    `fromColumn` - beginning of the column range.
    `toColumn` - end of the column range.

### ungroupColumn

    void ungroupColumn(int fromColumn,
                       int toColumn)

  Ungroup a range of columns that were previously groupped

  Parameters:
    `fromColumn` - start column (0-based)
    `toColumn` - end column (0-based)

### groupRow

    void groupRow(int fromRow,
                  int toRow)

  Tie a range of rows together so that they can be collapsed or expanded

  Parameters:
    `fromRow` - start row (0-based)
    `toRow` - end row (0-based)

### ungroupRow

    void ungroupRow(int fromRow,
                    int toRow)

  Ungroup a range of rows that were previously groupped

  Parameters:
    `fromRow` - start row (0-based)
    `toRow` - end row (0-based)

### setRowGroupCollapsed

    void setRowGroupCollapsed(int row,
                              boolean collapse)

  Set view state of a groupped range of rows

  Parameters:
    `row` - start row of a groupped range of rows (0-based)
    `collapse` - whether to expand/collapse the detail rows

### setDefaultColumnStyle

    void setDefaultColumnStyle(int column,
                               CellStyle style)

  Sets the default column style for a given column. POI will only apply this style to new cells added to the sheet.

  Parameters:
    `column` - the column index
    `style` - the style to set

### autoSizeColumn

    void autoSizeColumn(int column)

  Adjusts the column width to fit the contents.

  This process can be relatively slow on large sheets, so this should normally only be called once per column, at the end of your processing.

  You can specify whether the content of merged cells should be considered or ignored. Default is to ignore merged cells.

  Parameters:
    `column` - the column index

### autoSizeColumn

    void autoSizeColumn(int column,
                        boolean useMergedCells)

  Adjusts the column width to fit the contents.

  This process can be relatively slow on large sheets, so this should normally only be called once per column, at the end of your processing.

  You can specify whether the content of merged cells should be considered or ignored. Default is to ignore merged cells.

  Parameters:
    `column` - the column index
    `useMergedCells` - whether to use the contents of merged cells when calculating the width of the column

### getCellComment

    Comment getCellComment(int row,
                           int column)

  Returns cell comment for the specified row and column

  Returns:
    cell comment or `null` if not found

### createDrawingPatriarch

    Drawing createDrawingPatriarch()

  Creates the top-level drawing patriarch.

  Returns:
    The new drawing patriarch.

### getWorkbook

    Workbook getWorkbook()

  Return the parent workbook

  Returns:
    the parent workbook

### getSheetName

    java.lang.String getSheetName()

  Returns the name of this sheet

  Returns:
    the name of this sheet

### isSelected

    boolean isSelected()

  Note - this is not the same as whether the sheet is focused (isActive)

  Returns:
    `true` if this sheet is currently selected

### setArrayFormula

    CellRange setArrayFormula(java.lang.String formula,
                              CellRangeAddress range)

  Sets array formula to specified region for result.

  Parameters:
    `formula` - text representation of the formula
    `range` - Region of array formula for result.
  Returns:
    the `CellRange` of cells affected by this change

### removeArrayFormula

    CellRange removeArrayFormula(Cell cell)

  Remove a Array Formula from this sheet. All cells contained in the Array Formula range are removed as well

  Parameters:
    `cell` - any cell within Array Formula range
  Returns:
    the `CellRange` of cells affected by this change

### getDataValidationHelper

    DataValidationHelper getDataValidationHelper()

### addValidationData

    void addValidationData(DataValidation dataValidation)

  Creates a data validation object

  Parameters:
    `dataValidation` - The Data validation object settings

### setAutoFilter

    AutoFilter setAutoFilter(CellRangeAddress range)

  Enable filtering for a range of cells

  Parameters:
    `range` - the range of cells to filter

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