On click select all row

Question

Here the code which i have used for show the tick mark in table row,On each row click tick mark showing and on other click its hiding.I added a button to select make all ticks visible(Select all),it not working.

local function onRowRender( event )
 local phase = event.phase
 local row = event.row
 chktick= display.newImage('images/kitchen/checktick.png',10,10);
  if(deviceName == "iPhone" or deviceName == "iPad") then
   chktick.x=303;
  chktick.isVisible = false;
  else 
   chktick.x=303;   
  chktick.isVisible = false;
  end
 chktick.y=row.contentHeight * 0.5;
 row:insert(chktick);
 row:addEventListener("tap",onRowTouch); 
 return true;
end

On rowtouch method

local function onRowTouch( event )
local row = event.target;
local _chktick = event.target[6];
 print("Comes here when touch"..row.index);
  if(flagvalue==1)then
    _chktick.isVisible = true;
   flagvalue=0;
 else
    _chktick.isVisible = false;
  flagvalue=1;
 end
return true; 
end

Select all method

local function SelecetAllEventListener( event )
  flagvalue=1;
  currentScene.reloadScene();
 return true;
end

Rowrender calling code

function scene:enterScene( event )
MenuID = event.params.currentMenuID;
local group = self.view
    tableView = widget.newTableView
     {
      top = 85,
      left = 0,
      width = 320, 
      height = 380,
      maskFile = "billmask.png",
      hideBackground = true,
      onRowRender = onRowRender,
      listener = tableViewListener,
    }
   end
  group:insert( tableView )
end

Please help me how to make visible all tick showable in using SelecetAllEventListener?

Answer 1

The problem could be that in your "select all" handler (SelecetAllEventListener) you are setting a flag to 1 then reloading the scene. This will cause, IIUC, the onRowRender to be called again, but it won't cause the onRowTouch to be called again (since there hasn't been a touch of a row). What you need to do is that in SelecetAllEventListener you loop over all your rows and change the visibility of the checkmark. Your code doesnt' show where you keep your rows but I will assume in a variable:

local tableRows = {}
local toggle = true

local function somewhereInYourCode()
    ...
    newRow = ...
    yourTable:inserRow(newRow) -- will cause onRowRender to get called
    table.insert(tableRows, newRow)
    ...
end

local function SelecetAllEventListener( event )
    for i,row in ipairs(tableRows) do
        row[6].isVisible = toggle
    end
    toggle = not toggle -- for next time
    return true
end

Your code doesn't show where you insert rows so I put it in somewhereInYourCode() but you get the idea.