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diff --git a/demos/dynarows.tcl b/demos/dynarows.tcl
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+#!/bin/sh
+# the next line restarts using wish \
+exec wish "$0" ${1+"$@"}
+
+## dynarows.tcl
+##
+## This demos shows the use of the validation mechanism of the table
+## and uses the table's cache (no -command or -variable) with a cute
+## dynamic row routine.
+##
+## jeff at hobbs org
+
+source [file join [file dirname [info script]] loadtable.tcl]
+
+proc table_validate {w idx} {
+    if {[scan $idx %d,%d row col] != 2} return
+    set val [$w get $idx]
+ 
+    ## Entries in the last row are allowed to be empty
+    set nrows [$w cget -rows]
+    if {$row == ${nrows}-1 && [string match {} $val]} { return }
+ 
+    if {[catch {clock scan $val} time]} {
+        bell
+        $w activate $idx
+        $w selection clear all
+        $w selection set active
+        $w see active
+    } else {
+        set date {}
+        foreach item [clock format $time -format "%m %d %Y"] {
+            lappend date [string trimleft $item "0"]
+        }
+        $w set $idx [join $date "/"]
+        if {$row == ${nrows}-1} {
+	    ## if this is the last row and both cols 1 && 2 are not empty
+	    ## then add a row and redo configs
+            if {[string comp [$w get $row,1] {}] && \
+                    [string comp [$w get $row,2] {}]} {
+		$w tag row {} $row
+		$w set $row,0 $row
+                $w configure -rows [incr nrows]
+		$w tag row unset [incr row]
+		$w set $row,0 "*"
+                $w see $row,1
+		$w activate $row,1
+            }
+        }
+    }
+}
+
+label .example -text "Dynamic Date Validated Rows"
+
+set t .table
+table $t -rows 2 -cols 3 -cache 1 -selecttype row \
+	-titlerows 1 -titlecols 1 \
+	-yscrollcommand { .sy set } \
+	-xscrollcommand { .sx set } \
+	-height 5 -colstretch unset -rowstretch unset \
+	-autoclear 1 -browsecommand {table_validate %W %s}
+
+$t set 0,1 "Begin" 0,2 "End" 1,0 "*"
+$t tag config unset -fg \#008811
+$t tag config title -fg red
+$t tag row unset 1
+$t width 0 3
+
+scrollbar .sy -command [list $t yview]
+scrollbar .sx -command [list $t xview] -orient horizontal
+grid .example -     -sticky ew
+grid $t       .sy   -sticky news
+grid .sx            -sticky ew
+grid columnconfig . 0 -weight 1
+grid rowconfig . 1 -weight 1
+
+bind $t <Return> {
+    set r [%W index active row]
+    set c [%W index active col]
+    if {$c == 2} {
+	%W activate [incr r],1
+    } else {
+	%W activate $r,[incr c]
+    }
+    %W see active
+    break
+}
+bind $t <KP_Enter> [bind $t <Return>]