GuiGridListGetSelectedItem: Difference between revisions

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__NOTOC__
__NOTOC__
<!-- Describe in plain english what this function does. Don't go into details, just give an overview -->
<!-- Describe in plain english what this function does. Don't go into details, just give an overview -->
This fake function is for use with blah & blah and does blahblahblabhalbhl
This function returns the row index of the selected item in a grid list.


==Syntax==  
==Syntax==  
<!-- NOTE: don't use 'special' names for variable names, e.g. you shouldn't be writing things like 'player player, vehicle vehicle', instead write something like 'player thePlayer, vehicle vehicleToGetInto'. This is less confusing and prevents the syntax highlighting being odd -->
<!-- NOTE: don't use 'special' names for variable names, e.g. you shouldn't be writing things like 'player player, vehicle vehicle', instead write something like 'player thePlayer, vehicle vehicleToGetInto'. This is less confusing and prevents the syntax highlighting being odd -->
<syntaxhighlight lang="lua">
<syntaxhighlight lang="lua">
returnType functionName ( arguments )
int guiGridListGetSelectedItem ( element gridList )
</syntaxhighlight>  
</syntaxhighlight>  


===Required Arguments===  
===Required Arguments===  
<!-- List each argument one per line. This should be the argument's name as in the argument list above, NOT the argument's data type -->
*'''gridList:''' the grid list you want to know the selected row index of
*'''argumentName:''' description
 
<!-- Only include this section below if there are optional arguments -->
===Optional Arguments===
{{OptionalArg}}
*'''argumentName2:''' description
*'''argumentName3:''' description


===Returns===
===Returns===
<!-- Make this descriptive. Explain what cases will return false. If you're unsure, add a tag to it so we can check -->
Returns the row index of the selected item if the specified grid list is valid and has a selected item, ''false'' otherwise.
Returns ''true'' if blah, ''false'' otherwise.


==Example==  
==Example==
<!-- Explain what the example is in a single sentance -->
This code creates a grid list and fills it with the names of the connected players. When the user selects an item, its text (the player name) will be output in the chat box.
This example does...
<!-- Add the code below, an emphasis should be on making it clear, not optimized. You could provide two versions if you wish, one clear and well commented, the other optimized -->
<syntaxhighlight lang="lua">
<syntaxhighlight lang="lua">
--This line does...
function createPlayerList ()
blabhalbalhb --abababa
        -- Create the grid list
--This line does this...
        playerList = guiCreateGridList ( 0.80, 0.10, 0.15, 0.60, true )
mooo
        -- Create a players column in the list
        local column = guiGridListAddColumn( playerList, "Player", 0.85 )
        if ( column ) then        -- If the column has been created, fill it with players
                for id, playeritem in ipairs(getElementsByType("player")) do
                        local row = guiGridListAddRow ( playerList )
                        guiGridListSetItemText ( playerList, row, column, getPlayerName ( playeritem ), false, false )
                end
                addEventHandler ( "onClientClick", playerList, click )
        end
end
addEventHandler ( "onClientResourceStart", getRootElement(), createPlayerList )
 
function click ( button, state, sx, sy, x, y, z, elem, gui )
        -- if state is down ( not to trigger the function twice on mouse button up/down), clicked gui and the element is our player list
        if ( ( state == "down" ) and ( gui == true ) and ( source == playerList ) ) then
                -- get the player name from the selected row, first column
                local playerName = guiGridListGetItemText ( playerList, guiGridListGetSelectedItem ( playerList ), 1 )
                outputChatBox ( playerName )    -- output it to chat box
        end
end
</syntaxhighlight>
</syntaxhighlight>


Revision as of 16:38, 18 August 2007

This function returns the row index of the selected item in a grid list.

Syntax

int guiGridListGetSelectedItem ( element gridList )

Required Arguments

  • gridList: the grid list you want to know the selected row index of

Returns

Returns the row index of the selected item if the specified grid list is valid and has a selected item, false otherwise.

Example

This code creates a grid list and fills it with the names of the connected players. When the user selects an item, its text (the player name) will be output in the chat box. 

function createPlayerList ()
        -- Create the grid list
        playerList = guiCreateGridList ( 0.80, 0.10, 0.15, 0.60, true )
        -- Create a players column in the list
        local column = guiGridListAddColumn( playerList, "Player", 0.85 )
        if ( column ) then         -- If the column has been created, fill it with players
                for id, playeritem in ipairs(getElementsByType("player")) do
                        local row = guiGridListAddRow ( playerList )
                        guiGridListSetItemText ( playerList, row, column, getPlayerName ( playeritem ), false, false )
                end
                addEventHandler ( "onClientClick", playerList, click )
        end
end
addEventHandler ( "onClientResourceStart", getRootElement(), createPlayerList )

function click ( button, state, sx, sy, x, y, z, elem, gui )
        -- if state is down ( not to trigger the function twice on mouse button up/down), clicked gui and the element is our player list
        if ( ( state == "down" ) and ( gui == true ) and ( source == playerList ) ) then
                -- get the player name from the selected row, first column 
                local playerName = guiGridListGetItemText ( playerList, guiGridListGetSelectedItem ( playerList ), 1 )
                outputChatBox ( playerName )     -- output it to chat box
        end
end

See Also

General functions

Browsers

Buttons

Checkboxes

Comboboxes

Edit Boxes

Gridlists

Memos

Progressbars

Radio Buttons

Scrollbars

Scrollpanes

Static Images

Tab Panels

Tabs

Text Labels

Windows

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