更新单元格矩阵中的数据

此代码实现了一个60单元格的电子表格，包含6x10行和列。每行末尾有两个标签，一个用于行合计，另一个用于运行合计。这里的主要问题是如何在按下"计算"按钮时更新行和运行合计标签。

我还想把按钮从滚动视图的底部移动到窗口的底部，在那里它总是可见的。底部按钮的另一个视图？

Ti.include("toast.js"); // 3rd-party code; displays notifications
var i=0;
var r=0;
var rows = 10;
var columns = 6;
left = ["0%","12%","24%","36%","48%","60%"];

Titanium.UI.setBackgroundColor('#000');
var win1 = Titanium.UI.createWindow({  
    title:'Target 1',
    exitOnClose: true,
    backgroundColor:'#fff'
});

win1.addEventListener('androidback' , function(e){
     win1.close();
     var activity = Titanium.Android.currentActivity;
     activity.finish();
});
var scrollView1 = Ti.UI.createScrollView({
  bottom:120,
  contentHeight: 'auto',
  layout: 'vertical'
});

if (Ti.UI.Android){
  win1.windowSoftInputMode = Ti.UI.Android.SOFT_INPUT_ADJUST_PAN;
}

var buttonCalc = Titanium.UI.createButton({
   title: 'Calc',
   top: 10,
   width: 100,
   height: 50,
   left: "10%"
});


var lbAttrs1 = {
            text: "000",
            left: "74%",
            color:'#000',width:'auto',height:'auto',textAlign:'left',
            font:{fontSize:24,fontWeight:'regular'}
            };

var lbAttrs2 = {
            text: "000",
            left: "88%",
            color:'#000',width:'auto',height:'auto',textAlign:'left',
            font:{fontSize:24,fontWeight:'regular'}
            };

var baseAttrs = {
    borderStyle : Titanium.UI.INPUT_BORDERSTYLE_ROUNDED,
    keyboardType:  Titanium.UI.KEYBOARD_NUMBERS_PUNCTUATION,
    maxLength: 2,
    top: 10,
    height: 60,
    value: "",
    width: '12%',
    color : '#000000'
};
 var tfields = [];
 var labels1 =  [];
 var labels2 = []; 

buttonCalc.addEventListener('click',function(e)
{
  var a = 0;
  var b = 0;
for (j=0;j<rows;j++)
{
  a = 0;
  for (i=0;i<columns;i++)
    a = parseInt(tfields[j][i].value) + a; 
   b = b + a;
   labels1[j] = a.toString();
   labels2[j] = b.toString();
}
for (j=0;j<rows;j++)
alert( labels1[j]+'  '+labels2[j]+ ' ' +  j.toString());
});

function createRow1(i) // start create row 
{ 
  row1 = Ti.UI.createView({
    backgroundColor: 'white',
    borderColor: '#bbb',
    borderWidth: 1,
    width:'100%', height: 70,
    top: 0, left: 0 });
var tfield1 = [];
var label1 =  [];
var label2 = []; 
for (i=0;i<columns;i++)
  {
    tfield1[i] = Ti.UI.createTextField(baseAttrs); 
    label1[i] = Ti.UI.createLabel(lbAttrs1);
    label2[i] = Ti.UI.createLabel(lbAttrs2);
  }

  tfield1[0].addEventListener('change', function()
    {
    if (tfield1[0].value > 10)
      {
       tfield1[0].value = "";  
       showMessageTimeout("More than 10.",15);
      }
     }); 
 tfield1[1].addEventListener('change', function()
   {
    if (tfield1[1].value > 10)
       {
      tfield1[1].value = "";  
       showMessageTimeout("More than 10.",15);
      }  
    }); 

  tfield1[2].addEventListener('change', function()
   {
    if (tfield1[2].value > 10)
       {
      tfield1[2].value = "";  
       showMessageTimeout("More than 10.",15);
      }
    }); 

  tfield1[3].addEventListener('change', function()
   {
    if (tfield1[3].value > 10)
        {
      tfield1[3].value = "";  
       showMessageTimeout("More than 10.",15);
      }  
    }); 
   tfield1[4].addEventListener('change', function()
   {
    if (tfield1[4].value > 10)
         {
      tfield1[4].value = "";  
       showMessageTimeout("More than 10.",15);
      }    
    }); 
tfield1[5].addEventListener('change', function()
   {
    if (tfield1[5].value > 10)
         {
      tfield1[5].value = "";  
       showMessageTimeout("More than 10.",15);
      }          
   }); 

tfield1[0].left =  left[0];
tfield1[1].left =  left[1];
tfield1[2].left =  left[2];

tfield1[3].left =  left[3];
tfield1[4].left =  left[4];
tfield1[5].left =  left[5];

for (i=0;i<columns;i++)
 {
   row1.add(tfield1[i]);
   row1.add(label1[i]);
   row1.add(label2[i]);
  }
;
tfields.push(tfield1);  
labels1.push(label1);
labels2.push(label2);
return row1;
}  /// end of createrow1
for(i = 0; i < rows; i++){
row1 = createRow1(i);
scrollView1.add(row1);
}
win1.add(scrollView1);
scrollView1.add(buttonCalc);
// win1.add(buttonCalc);
win1.open();