Inserting values in table without rewriting the whole table

[jkub]

I have sit for at least an hour and found no good way of making my purchase button work in this new ammunation gui/shop I am working on. Everything that I want to buy is added into a shopping cart ( gridlist ) and I obviously can't loop through the table because it wants a table and guiGridListGetRowCount does not return a table. (Correct if im wrong please, I am trying to learn ) Unless I was to define rows in a gridlist as a custom element type I might be able to loop through them but I have no clue how to do that.

Here is a picture so you get the idea of what I am trying to do.

I have tried making a table like

selectedWeapons = {}

then when a weapon is added to the cart I tried inserting those weapons into the table via table.insert which from what I understand is

table.insert ( table, position, value )

I tried defining a position and leaving the position out and either way it seemed to overwrite the entire table to the last weapon that I inserted into the table. I used table.maxn to get the end of the table (I did some research and from what I understand it gets the table length)

So I tried

table.insert ( selectedWeapons, table.maxn(selectedWeapons)+1, weaponID )

that still rewrote the table and gave me one value regardless of how many weapons I had in my shopping cart

[MaddDogg]

I just tested table.insert and it just works fine.

It is always a good idea to post the respective part of the script, which is not working.

So you should post it here, there is probably a mistake in it.

Also you should never use a GUI system to store data. It should always only be used to display it and maybe an entry in a gridlist can be marked with a certain value to be able to identify it, but you should never use the gridlist data variables as a kind of table to store your values.

I say this, because you talked about a table you needed and that guiGridListGetRowCount does not return a table.

Btw, here is my test script I just used, maybe it will help you:

client-side:

testTable = {}
 
addCommandHandler("tableadd",
function (cmdtext, value)
if isnumber(value) then
table.insert(testTable, tonumber(value))
 
		printTestTable()
end
end
, false)
 
addCommandHandler("tableprint",
function ()
	printTestTable()
end
, false)
 
function printTestTable()
outputChatBox("TEST TABLE - PRINT OUT:")
 
for index, value in ipairs(testTable) do
outputChatBox("    " .. index .. ":  " .. value)
end
end

[jkub]

I just tested table.insert and it just works fine.

It is always a good idea to post the respective part of the script, which is not working.

So you should post it here, there is probably a mistake in it.

Also you should never use a GUI system to store data. It should always only be used to display it and maybe an entry in a gridlist can be marked with a certain value to be able to identify it, but you should never use the gridlist data variables as a kind of table to store your values.

I say this, because you talked about a table you needed and that guiGridListGetRowCount does not return a table.

Btw, here is my test script I just used, maybe it will help you:

client-side:

testTable = {}
 
addCommandHandler("tableadd",
function (cmdtext, value)
if isnumber(value) then
table.insert(testTable, tonumber(value))
 
		printTestTable()
end
end
, false)
 
addCommandHandler("tableprint",
function ()
	printTestTable()
end
, false)
 
function printTestTable()
outputChatBox("TEST TABLE - PRINT OUT:")
 
for index, value in ipairs(testTable) do
outputChatBox("    " .. index .. ":  " .. value)
end
end

Thank you

I just tried out that code and had to correct what seems to be a typo "isnumber"? to tonumber.

Anyway thank you very much I'm going to see if I can "weave" this into my shop code to see if it works

Ill get back later

[jkub]

Thanks guys. I have most of my weapon shop going and it seems to be working well. I got the tables in right and it's beautiful. Just need to find a way to write receipts. I'll post some code later. I'm typing from an iPod right now lol