51:
The sample displays the value in years, months, weeks, days, hours, minutes and secons

with thisform.Expression1
	var_s = "trim((1:=int((0:=value)/365) ? =:1 + ` year(s) ` : ``)  + (1:=int((0:=(=:0 - (=:1*365)))/31) ? =:1 + ` month(s) ` : ``) + (1:=in"
	var_s = var_s + "t((0:=(=:0 - (=:1*31)))/7) ? =:1 + ` week(s) ` : ``) + (1:=int((0:=(=:0 - (=:1*7)))/1) ? =:1 + ` day(s) ` : ``) + (1:=int((0:=(="
	var_s = var_s + ":0 - =:1 + 1/24/60/60/2))*24) ? =:1 + ` hour(s) ` : ``) + (1:=int((0:=(=:0*24 - =:1))*60) ? =:1 + ` min(s) ` : ``) + (1:=int((0:"
	var_s = var_s + "=(=:0*60 - =:1))*60) ? =:1 + ` sec(s)` : ``))"
	.Expression = var_s
	.EvaluationText = "value = 1\r\nvalue=2 + 1/24/60\r\nvalue=365 + 12 * 1/24\r\nvalue=1212.25\r\nvalue=366.02512"
	.SplitPaneWidth = 464
endwith
50:
The sample displays the value in seconds

with thisform.Expression1
	.Expression = "(1:=(int(0:=(value*24*60*60 + 1/24/60/60/2))) ? =: 1 + ` sec(s)` : ``)"
	.EvaluationText = "value = 1\r\nvalue=2 + 1/24/60\r\nvalue=365 + 12 * 1/24\r\nvalue=1212.25\r\nvalue=366.02512"
	.SplitPaneWidth = 256
endwith
49:
The sample displays the value in minutes and seconds

with thisform.Expression1
	var_s = "trim((1:=(int(0:=(value*24*60 + 1/24/60/60/2))) ? =: 1 + ` min(s)` : ``) + ` ` + (2:=int((=:0 - =:1)*60) ? =:2 + ` sec(s)` : ``)"
	var_s = var_s + ")"
	.Expression = var_s
	.EvaluationText = "value = 1\r\nvalue=2 + 1/24/60\r\nvalue=365 + 12 * 1/24\r\nvalue=1212.25\r\nvalue=366.02512"
	.SplitPaneWidth = 256
endwith
48:
The sample displays the value in hours and minutes

with thisform.Expression1
	var_s = "((1:=int(0:=( 24*int(value) + (value - int(value) + 1/24/60/60/2)*24))) != 0 ? =:1 + ' hour(s)' : '' ) + (=:1 ? ' ' : '' ) + ((1"
	var_s = var_s + ":=round((=:0 - =:1)*60)) != 0 ? =:1 + ' min(s)' : '')"
	.Expression = var_s
	.EvaluationText = "value = 1\r\nvalue=2 + 1/24/60\r\nvalue=365 + 12 * 1/24\r\nvalue=1212.25\r\nvalue=366.02512"
	.SplitPaneWidth = 256
endwith
47:
How can I check for a blank-date (sample 3) Expression

with thisform.Expression1
	var_s = "type(value) case ( default : `<fgcolor=000000><s>invalid</s></fgcolor>`; 0 : `<fgcolor=FF0000>null</fgcolor>`; 1 : `null` ; 7 : "
	var_s = var_s + "longdate(value) )"
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
46:
How can I check for a blank-date (sample 2) Expression

with thisform.Expression1
	.Expression = "len(value) ? longdate(value) : ``"
	.SplitPaneWidth = 256
endwith
45:
How can I check for a blank-date (sample 1) Expression

with thisform.Expression1
	.Expression = "type(value) = 7 ? longdate(value) : ``"
	.SplitPaneWidth = 256
endwith
44:
Easter Sunday

with thisform.Expression1
	var_s = "date(dateS('3/1/' + year(value)) + ((1:=(((255 - 11 * (year(value) mod 19)) - 21) mod 30) + 21) + (=:1 > 48 ? -1 : 0) + 6 - ((ye"
	var_s = var_s + "ar(value) + int(year(value) / 4)) + =:1 + (=:1 > 48 ? -1 : 0) + 1) mod 7))"
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
43:
The sample displays the value in days, hours and minutes

with thisform.Expression1
	var_s = "((1:=int(0:= (value))) != 0 ? (=:1 + ' day(s)') : '') + (=:1 ? ' ' : '' ) + ((1:=int(0:=((=:0 - =:1 + 1/24/60/60/2)*24))) != 0 ?"
	var_s = var_s + " =:1 + ' hour(s)' : '' ) + (=:1 ? ' ' : '' ) + ((1:=round((=:0 - =:1)*60)) != 0 ? =:1 + ' min(s)' : '')"
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
42:
How can I display the date in short format

with thisform.Expression1
	.Expression = "shortdate(date(value))"
	.SplitPaneWidth = 256
endwith
41:
How can I display the date in long format

with thisform.Expression1
	.Expression = "longdate(date(value))"
	.SplitPaneWidth = 256
endwith
40:
The sample displays the positive values in blue, being preceded by + sign, negative values in red preceded by - sign, 0 as 0.00 while for null values is displays null. The numbers are displayed using 2 digits, . as decimal separator and grouping by 3 digits by , separator

with thisform.Expression1
	var_s = "type(value) in (0,1) ? 'null' : ( dbl(value)<0 ? '<fgcolor=FF0000>'+ (value format '2|.|3,' ) : (dbl(value)>0 ? '<fgcolor=0000FF"
	var_s = var_s + ">+'+(value format '2|.|3,' ): '0.00') ) "
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
39:
How can I format a numeric value so it display as a currency

with thisform.Expression1
	.Expression = "currency(dbl(value))"
	.SplitPaneWidth = 256
endwith
38:
How can I format a numeric value to with grouping

with thisform.Expression1
	.Expression = "dbl(value) format ''"
	.SplitPaneWidth = 256
endwith
37:
How can I convert the value to a numeric ( integer ) value

with thisform.Expression1
	.Expression = "int(value)"
	.SplitPaneWidth = 256
endwith
36:
How can I convert the value to a numeric ( double ) value

with thisform.Expression1
	.Expression = "dbl(value)"
	.SplitPaneWidth = 256
endwith
35:
How can I format a date as YYYY-MMM-DD (sample 4)

with thisform.Expression1
	var_s = "(year(value) + '-') + (month(value) array('','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec')) + '-' + ("
	var_s = var_s + "day(value)<10 ? '0' : '') + day(value)"
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
34:
How can I format a date as YYYY-MMM-DD (sample 3)

with thisform.Expression1
	var_s = "(2 array ( 0 := (shortdateF(value) split `/`) ) ) + `-`+ ((month(value) - 1) array `Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov "
	var_s = var_s + "Dec` split ` `) + `-`+ (1 array =: 0)"
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
33:
How can I format a date as YYYY-MMM-DD (sample 2)

with thisform.Expression1
	var_s = "ltrim((2 array longdate(value) split `,`)) + `-` +  ((1 array (1 array longdate(value) split `,`) split ` `) left 3 ) + `-` + (`"
	var_s = var_s + "00` left (2 - len(day(value)))) + day(value)"
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
32:
How can I format a date as YYYY-MMM-DD (sample 1)

with thisform.Expression1
	var_s = "year(value) + `-` +  (month(value)-1 array ('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec')) + `-` + (`"
	var_s = var_s + "00` left (2 - len(day(value)))) + day(value)"
	.Expression = var_s
	.SplitPaneWidth = 256
endwith
31:
How can I use my own operators only

with thisform.Expression1
	.AllowValueKeyword = .F.
	.AllowDefaultOperators = .F.
	.AddCustomOperator("+","<b>+</b>","This is a new binary-operator",2)
	.AddCustomOperator("xxx","<b>xxx</b>","This is a new keyword",0)
	.AddCustomOperator("yyy","<b>yyy</b>","This is a unary-operator",1)
	.AddCustomOperator("zzz","<b>zzz</b>","This is a binary-operator",2)
	.Text = "xxx + yyy(100 zzz 200)"
endwith
30:
How can I add a new binary-operator

with thisform.Expression1
	.AddCustomOperator("xxx","<b>xxx</b>","This is a new binary-operator",2)
	.Text = "value + 100 xxx 200"
endwith
29:
How can I add a new unary-operator

with thisform.Expression1
	.AddCustomOperator("xxx","<b>xxx</b>","This is a new unary-operator",1)
	.Text = "value + xxx(100)"
endwith
28:
How can I add a new keyword

with thisform.Expression1
	.AddCustomOperator("xxx","<b>xxx</b>","This is a new keyword",0)
	.Text = "value + xxx"
endwith
27:
How can I disable all operators
with thisform.Expression1
	.AllowValueKeyword = .F.
	.AllowDefaultOperators = .F.
endwith
26:
How can I disable the value keyword
with thisform.Expression1
	.AllowValueKeyword = .F.
endwith
25:
Usage of and ( and operator )

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "(value contains 1) and (value != 1)"
endwith
24:
Usage of or ( or operator )

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "(value=1) or value=`string`"
endwith
23:
Usage of not ( not operator )

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "not(value=1)"
endwith
22:
Usage of - ( subtraction operator )

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value - 2"
endwith
21:
Usage of + ( addition operator )

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value + 2"
endwith
20:
Usage of mod ( reminder operator )

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value mod 2"
endwith
19:
Usage of / (divide operator)

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value / 2"
endwith
18:
Usage of * (multiplicity operator)

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "2 * value"
endwith
17:
How can I get the word from cursor when user double clicks the control
*** DblClick event - Occurs when the user double clicks the left mouse button over an object. ***
LPARAMETERS Shift,X,Y
	with thisform.Expression1
		DEBUGOUT( "Word: " )
		DEBUGOUT( .WordFromPoint(-1,-1) )
	endwith

with thisform.Expression1
	.Expression = "value"
	.AllowSplitter = 2
	.SplitPaneHeight = 196
endwith
16:
How do I determine the word from the cursor
*** Click event - Occurs when the user presses and then releases the left mouse button over the list control. ***
LPARAMETERS nop
	with thisform.Expression1
		DEBUGOUT( "Word: " )
		DEBUGOUT( .WordFromPoint(-1,-1) )
	endwith

with thisform.Expression1
	.Expression = "value"
	.SplitPaneHeight = 196
	.Object.Background(1) = RGB(240,240,240)
	.AllowSplitter = 2
endwith
15:
How can I check if the expression is valid/syntactically correct
*** Change event - Indicates that the control's text has changed. ***
LPARAMETERS nop
	with thisform.Expression1
		DEBUGOUT( "Valid: " )
		DEBUGOUT( .IsValid )
	endwith

with thisform.Expression1
	.Expression = "value"
	.SplitPaneHeight = 196
	.Object.Background(1) = RGB(240,240,240)
	.AllowSplitter = 2
endwith
14:
How can I change the visual appearance of the horizontal splitter

with thisform.Expression1
	.Expression = "value"
	.SplitPaneHeight = 196
	.Object.Background(1) = RGB(240,240,240)
	.AllowSplitter = 2
endwith
13:
How can I change the visual appearance of the vertical splitter

with thisform.Expression1
	.Expression = "value"
	.SplitPaneWidth = 196
	.Object.Background(0) = RGB(240,240,240)
endwith
12:
How can I add a new menu-item to control's context menu
*** ExecuteContextMenu event - Occurs when the user selects an user item from the control's context menu. ***
LPARAMETERS Item,Position
	with thisform.Expression1
		DEBUGOUT( "ExecuteContextMenu: " )
		DEBUGOUT( Item )
	endwith

with thisform.Expression1
	.Expression = "value + 100"
	.ContextMenuItems = "Test"
endwith
11:
How can I change the tooltip that shows when cursor hovers a keyword

with thisform.Expression1
	.Expression = "value"
	.Object.Description(0) = "This is a bit of text to be shown when cursor hovers the <b>value</b> keyword."
	.Refresh
endwith
10:
How do I check if the expression is correct
with thisform.Expression1
	.Expression = "currency(value)"
	DEBUGOUT( .IsValid )
endwith
9:
How do I programmatically evaluate the expression
with thisform.Expression1
	.Expression = "currency(value)"
	DEBUGOUT( .Evaluate("value=100") )
endwith
8:
How can I assign multiple values for variables %1, %2, ...

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "currency(%1 + %2)"
	.EvaluationText = "%1 = 100;%2 = 200"
endwith
7:
How can I change the values to show the result
with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "currency(value)"
	.EvaluationText = "value = 100"
endwith
6:
How can I prevent changing the color when expression is invalid
with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value 2"
	.ForeColorInvalid = RGB(0,0,0)
endwith
5:
How can I change the color when expression is invalid
with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value 2"
	.ForeColorInvalid = RGB(255,0,0)
endwith
4:
How can I prevent evaluation the selection

with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value + 1"
	.EvaluateSelection = .F.
	.HideSelection = .F.
	.SelLength = 1
endwith
3:
How can I programatically show the result
with thisform.Expression1
	.SplitPaneWidth = 196
	.Expression = "value"
endwith
2:
How can I get ride of the right-vertical line/split
with thisform.Expression1
	.AllowSplitter = 0
	.Expression = "value + 1"
endwith
1:
How can I change the control's background
with thisform.Expression1
	.Expression = "value"
	.BackColor = RGB(240,240,240)
endwith