Spanning Rows and Columns
A widget can occupy more than one cell. The -rowspan and -columnspan attributes indicate how many rows and columns are occupied by a widget. Example 24-7 uses explicit row, column, rowspan, and columnspan specifications:
Example 24-7 Explicit row and column span.
. config -bg white foreach color {888 999 aaa bbb ccc fff} { frame .$color -bg #$color -width 40 -height 40 } grid .888 -row 0 -column 0 -columnspan 3 -sticky news grid .999 -row 1 -column 0 -rowspan 2 -sticky news grid .aaa -row 1 -column 1 -columnspan 2 -sticky news grid .bbb -row 2 -column 2 -rowspan 2 -sticky news grid .ccc -row 3 -column 0 -columnspan 2 ... |
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