Managing the Matrix’s Cells

These methods dynamically add and remove columns:

• To add a column of empty cells beyond the last column, use addColumn.

• To add a column of filled cells beyond the last column, use addColumnWithCells:.

• To insert a column of empty cells at a specified location, use insertColumn:.

• To insert a column of filled cells at a specified location, use insertColumn:withCells:.

• To remove a column of cells, use removeColumn:.

These methods dynamically add and remove rows:

• To add a row of empty cells below the last row, use addRow.

• To add a row of filled cells below the last row, use addRowWithCells:.

• To insert a row of empty cells at a specified location, use insertRow:.

• To insert a row of filled cells at a specified location, use insertRow:withCells:.

• To remove a row of cells, use removeRow:.

This method creates individual cells:

• To replace an specific cell with a new cell, use putCell:atRow:column:.

This method retrieves information about individual cells:

• To get the frame of a specified cell, use cellFrameAtRow:column:.

These methods retrieve information about the matrix:

• To get the numbers of rows and columns, use numberOfColumns and numberOfRows.

These methods locate particular cells:

• To find a cell at a particular location, use cellAtRow:column:.

• To find a cell with a particular tag, use cellWithTag:.

• To get a list of all the cells, use cells.

These methods manage the selection:

• To retrieve the current selection, use selectedCell or selectedCells.

• To select a particular cell, use selectCellAtRow:column: or selectCellWithTag.

• To select a range of cells, use selectAll: or setSelectionFrom:to:anchor:highlight:.

• To deselect cells, use deselectAllCells or deselectSelectedCell.

• To retrieve the column and row number for the selection, use selectedColumn and selectedRow.

• To select the text in a cell (for a matrix that contains text fields), use selectTextAtRow:column:.