How to put value in spec limit column properties

[#1]

Hi community, i'm trying my best to solve this but i failed again & again. Can someone tell me where is my mistake?

I want to put value text box in the spec limit column properties? I already tried so many times. If i

change

 {LSL(LowL), USL(HighL), Show Limits( 2 )}

into

 {LSL(500), USL(1000), Show Limits( 2 )}

it worked. But i don't want number, i want value in LowL & HighL. 

Here my full script

dt = Current Data Table();

// Get the all column names from the data table
columnNames = dt << Get Column Names("String");

// Choose the specific column
cl = New Window("Column Selection", <<Modal,
    HListBox(
		  Panel Box("Make a selection",
			VlistBox(
			  usropt = RadioBox(columnNames, 
			     prmtr=usropt<<get
					)
				)
			)	
		)
	);

//Text Box Put value spec limit Upper & Lower

wd = New Window( "Spec Limit", << modal(),
	hlistbox(
		Text Box( "HighL:" ),
		High_Limit = Text Edit Box( "",<<set width( 90 ) ),
	),
	Button Box( "OK", 
		HighL = High_Limit << get number();
			
		)
	);
	
		
wd = New Window( "Spec Limit", << modal(),
	hlistbox(
		Text Box( "LowL:" ),
		Low_Limit = Text Edit Box( "",<<set width( 90 ) ),
	),
	Button Box( "OK", 
		LowL = Low_Limit << get number();
	
		)
	);

//Put value Spec Limit on choosen column

col = Column(prmtr);
col << Add Column Properties(
    Set Property(
    "Spec Limits",
    {LSL(LowL), USL(HighL), Show Limits( 2 )}
		
		)
	);

[#2]

You will have to evaluate the values Insert one expression into another using Eval Insert, Eval Expr, Parse, and Substitute . One option is something like this

Eval(EvalExpr(
	col << Add Column Properties(
		Set Property(
			"Spec Limits",
			{LSL(Expr(LowL)), USL(Expr(HighL)), Show Limits(2)}
			
		)
	)
));

[#3]

Still did not work for me. The value from text box did not getting into the spec limit.

[#4]

This does work for me

Names Default To Here(1);

// Open a data table or replace "Data Table Name" with the name of your data table
dt = Current Data Table();

// Get the all column names from the data table
columnNames = dt << Get Column Names("String");

// Choose the specific column
cl = New Window("Column Selection",
	<<Modal,
	H List Box(
		Panel Box("Make a selection",
			V List Box(allcolumn = Radio Box(columnNames, prmtr = allcolumn << get))
		)
	)
);

//Text Box Put value spec limit Upper & Lower


wd = New Window("Spec Limit",
	<<modal(),
	H List Box(Text Box("HighL:"), High_Limit = Number Edit Box("", <<set width(10)), ),
	Button Box("OK", HighL = High_Limit << get)
);
	
// If cancel or X was clicked, stop the script
If(wd == {Button(-1)}, Stop());	
		
wd = New Window("Spec Limit",
	<<modal(),
	H List Box(Text Box("LowL:"), Low_Limit = Number Edit Box("", <<set width(10)), ),
	Button Box("OK", LowL = Low_Limit << get)
);

// If cancel or X was clicked, stop the script
If(wd == {Button(-1)}, Stop());



//Put value Spec Limit on choosen column

col = Column(prmtr);

Eval(EvalExpr(
	col << Add Column Properties(
		Set Property(
			"Spec Limits",
			{LSL(Expr(LowL)), USL(Expr(HighL)), Show Limits(2)}
			
		)
	)
));

Also if you would like to, you could combine all those selections into a single modal window

Names Default To Here(1);

dt = Current Data Table();
col_names = dt << Get Column Names("String", Continuous);

nw = New Window("Set Specs", << Modal,
	H List Box(
		Panel Box("Select Column",
			rb_col = Radio Box(col_names)
		),
		Panel Box("Select Limits",
			Lineup Box(N Col(2),
				Text Box("LSL: "),
				lsl_neb = Number Edit Box("", <<set width(10)),
				Text Box("USL: "),
				usl_neb = Number Edit Box("", <<set width(10))
			)
		),
		Panel Box("Actions",
			Lineup Box(N Col(1),
				Button Box("OK",
					lsl_val = lsl_neb << get;
					usl_val = usl_neb << get;
					sel_col = rb_col << get selected;
				),
				Button Box("Cancel")
			)
		)
	)
);

If(nw["Button"] != 1,
	Throw("Cancel pressed");
);

show(sel_col, lsl_val, usl_val);

[#5 · Accepted solution]

UPDATE!!!

After research all the topic in this community i already solve this with research apply all the method given every solution given. Thank god i solve this with helper from god. Alhamdulillah

Here my scripts 

// Open a data table or replace "Data Table Name" with the name of your data table
dt = Current Data Table();

// Get the all column names from the data table
columnNames = dt << Get Column Names("String");

// Choose the specific column
cl = New Window("Column Selection", <<Modal,
    HListBox(
		  Panel Box("Make a selection",
			VlistBox(
			  allcolumn = RadioBox(columnNames, 
			     prmtr=allcolumn<<get
					)
				)
			)	
		)
	);

//Text Box Put value spec limit Upper & Lower


wd = New Window( "Spec Limit", << modal(),
	hlistbox(
		Text Box( "HighL:" ),
		High_Limit = Number Edit Box( "",<<set width( 10 ) ),
	),
	Button Box( "OK", 
		HighL=High_Limit<<get;
		)
	);
	
// If cancel or X was clicked, stop the script
If( wd == {Button( -1 )}, Stop() );	
		
wd = New Window( "Spec Limit", << modal(),
	hlistbox(
		Text Box( "LowL:" ),
		Low_Limit = Number Edit Box( "",<<set width( 10 ) ),
	),
	Button Box( "OK", 
		LowL=Low_Limit<<get;
		)
	);

// If cancel or X was clicked, stop the script
If( wd == {Button( -1 )}, Stop() );



//Put value Spec Limit on choosen column

col = Column(prmtr);

Eval(
	Substitute(
			Expr(
				col << Add Column Properties(
				Set Property(
				"Spec Limits",
				Eval(	{LSL(low), USL(high), Show Limits( 2 )})
				),
			)
		),
	Expr(low), LowL,
	Expr(high), HighL
	)
);