If Statement Not Working on Menu

[Zetos Lapier]

Alright, I've made it so that the value is == 0, yet it still shows 0 instead of nothing like it's set up to do in this script.

[lua]if Item2 == 0 or nil then
local iteml2 = vgui.Create( "DLabel", OldItemsFrame ) -- Create the icons in the Model select
iteml2:SetText( nothing ) -- This sets the model to the actual path
iteml2:SizeToContents()
iteml2:SetPos( 5, 40 ) -- This adds the icon
else
local iteml2 = vgui.Create( "DLabel", OldItemsFrame ) -- Create the icons in the Model select
iteml2:SetText( Item2 ) -- This sets the model to the actual path
iteml2:SizeToContents()
iteml2:SetPos( 5, 40 ) -- This adds the icon
end[/lua]

How do I fix this?

[Feihc]

Well iirc, if a value is 0 and you check against it like its a boolean (even if it isn't necessarily) it will return false. So you can simplify your statement into one check

[lua]
if not Item2 then
--First block of your code
else
--Second block of your code
end
[/lua]

[leiftiger]

[QUOTE=Feihc;28813114]Well iirc, if a value is 0 and you check against it like its a boolean (even if it isn't necessarily) it will return false. So you can simplify your statement into one check

[lua]
if not Item2 then
--First block of your code
else
--Second block of your code
end
[/lua][/QUOTE]
Lua does not work that way. If a value is 0, then it is 0 so the second block will be called if Item2 is 0.
And for your check you could use his code but add the thing for 0
[lua]
if not Item2 or (Item2 and Item2 == 0) then -- (Just to make sure that it won't error)
--First block of your code
else
--Second block of your code
end
[/lua]

Wait a second, I just noticed that in your code you are checking if the item is 0 or nil is true it will turn up as nothing, that's a pretty big mistake, since nil will never be checked.

[Feihc]

Actually, it does.
[url]http://wiki.garrysmod.com/?title=G.tobool[/url]

A numeric value of 0 will equate to "false"
A numeric value of anything else will equate to "true"

] lua_run print(tobool(1))
> print(tobool(1))...
true
] lua_run print(tobool(13))
> print(tobool(13))...
true
] lua_run print(tobool(-13))
> print(tobool(-13))...
true
] lua_run print(tobool(0))
> print(tobool(0))...
false

You don't HAVE to use tobool on it, 0 == false either way.

[leiftiger]

That's only if you use the function tobool, which isn't needed all times. (Since he wants the first code to be run if the value is 0)

[Chrisaster]

As leiftiger said, the problem is [i]if Item2 == 0 or nil then[/i]. You can't check if a variable is equal to more than one value at once. It should be [i]if Item2 == nil or Item2 == 0 then[/i].

[FlapadarV2]

[QUOTE=Feihc;28814012]You don't HAVE to use tobool on it, 0 == false either way.[/QUOTE]

[url]http://codepad.org/x6fXdYNf[/url]

Enjoy building your box fort.

[Zetos Lapier]

Ok... So I switched it up to

cl_begin.lua
[lua]if tobool(Item2) == false or (Item2 and Item2 == 0) then
local iteml2 = vgui.Create( "DLabel", OldItemsFrame ) -- Create the icons in the Model select
iteml2:SetText( "Nothing" ) -- This sets the model to the actual path
iteml2:SizeToContents()
iteml2:SetPos( 5, 40 ) -- This adds the icon
else
local iteml2 = vgui.Create( "DLabel", OldItemsFrame ) -- Create the icons in the Model select
iteml2:SetText( Item2 ) -- This sets the model to the actual path
iteml2:SizeToContents()
iteml2:SetPos( 5, 40 ) -- This adds the icon
end[/lua]

It works now, thanks guys!