Table - Columns drag & drop

54 New Member

I´ve seen some people around the web wondering about a code to reorder table columns using the mouse (drag and drop). Since i had already made one script to reorder table lines (TR´s) i decided to start working in one to reorder the columns. Im sharing this code with you all now. If anyone find any issue needing improvements just email-me and i will try to fix. The implementation is very easy, only change the ID of the table in the tabelaDrag variable and it should work.

ps:english is not my primary language so... :)

file: movecolumns.css

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/* estilo geral da tabela */

table {border-collapse:collapse}

table td {border:1px solid #000; padding:2px 5px; text-align:center; cursor:pointer}
 
/* classe das cores utilizadas na movimentação */

.hover {background:lightblue}

.selecionado {background:lightgreen}

file:movecolumn s.js

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//----------------------------------------------//

//    Created by: Romulo do Nascimento Ferreira    //

//    Email: romulo.nf@gmail.com                    //

//----------------------------------------------//
 
// NOTICE: This code may be use dto any purpose without further

// permission from the author. You may remove this notice from the

// final code, however its appreciated if you keep the author name/email.

// Email me if theres something needing improvement
 
//set the id of the table that is gonna have the 

//moving column function in the tabelaDrag variable

document.onmouseup = soltar;

var drag = false;
 
window.onload = init
 
function init() {

tabelaDrag = document.getElementById("tabela");

linhas = tabelaDrag.getElementsByTagName("TR");

celulas = tabelaDrag.getElementsByTagName("TD");

linhaUm = tabelaDrag.rows[0]

ordenacaoMaxima = linhaUm.cells.length
 
  tabelaDrag.onselectstart = function () { return false; } 

  tabelaDrag.onmousedown = function () { return false; }
 
      for (x=0; x<celulas.length;x++) {

        arrastar(celulas[x])

        celulas[x].onmouseover = pintar

        celulas[x].onmouseout = pintar

    }

}
 
function capturarColuna(obj) {

coluna = obj.cellIndex

return coluna

}
 
function orderTd (obj) {

destino = obj.cellIndex
 
if (destino == null) return

if (coluna == destino) return
 
    for (x=0; x<linhas.length; x++) {

    tds = linhas[x].cells

    var celula = linhas[x].removeChild(tds[coluna])

        if (destino >= ordenacaoMaxima || destino + 1 >= ordenacaoMaxima) {

        linhas[x].appendChild(celula)

        }

        else {

        linhas[x].insertBefore(celula, tds[destino])

        }

    }

}
 
function soltar(e){

    if (!e) e=window.event

    if (e.target) targ = e.target

    else if (e.srcElement) targ=e.srcElement

    orderTd(targ)

    drag = false
 
    for(x=0; x<linhas.length; x++) {

        for (y=0; y<linhas[x].cells.length; y++) {

        linhas[x].cells[y].className="";

        }

    }

}
 
function arrastar(obj){

    if(!obj) return;

    obj.onmousedown = function(ev){

        colunaAtual = this.cellIndex

            for (x=0; x<linhas.length; x++) {

            linhas[x].cells[this.cellIndex].className="selecionado"

            }

        drag = true

        capturarColuna(this);

        return false;

    }

}
 
function pintar(e) {

if (!e) e=window.event

ev = e.type
 
    if (ev == "mouseover") {

        if (drag) {

            for (x=0; x<linhas.length; x++) {

                if (this.className !="selecionado") {

                linhas[x].cells[this.cellIndex].className="hover"

                }

            }

        }

    }
 
    else if (ev == "mouseout") {

        for (x=0; x<linhas.length; x++) {

            if (this.className !="selecionado") {

            linhas[x].cells[this.cellIndex].className=""

            }

        }

    }

}

file:movecolumn s.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 
<html>

<head>

    <title>Drag and Drop Columns</title>
 
<script type="text/javascript" src="movecolumn.js"></script>
 
<link rel="StyleSheet" href="movecolumn.css" type="text/css" />
 
</head>
 
<body>
 
<table id="tabela">

    <tr>

        <td>Coluna 1</td>

        <td>Coluna 2</td>

        <td>Coluna 3</td>

        <td>Coluna 4</td>

        <td>Coluna 5</td>

        <td>Coluna 6</td>

        <td>Coluna 7</td>

        <td>Coluna 8</td>

        <td>Coluna 9</td>

        <td>Coluna 10</td>

    </tr>

    <tr>

        <td>A1</td>

        <td>A2</td>

        <td>A3</td>

        <td>A4</td>

        <td>A5</td>

        <td>A6</td>

        <td>A7</td>

        <td>A8</td>

        <td>A9</td>

        <td>A10</td>

    </tr>

    <tr>

        <td>B1</td>

        <td>B2</td>

        <td>B3</td>

        <td>B4</td>

        <td>B5</td>

        <td>B6</td>

        <td>B7</td>

        <td>B8</td>

        <td>B9</td>

        <td>B10</td>

    </tr>

    <tr>

        <td>C1</td>

        <td>C2</td>

        <td>C3</td>

        <td>C4</td>

        <td>C5</td>

        <td>C6</td>

        <td>C7</td>

        <td>C8</td>

        <td>C9</td>

        <td>C10</td>

    </tr>
 
</table>
 
</body>
 
</html>

Nov 1 '06 #1

Subscribe Reply

31622

abducted

New Member

Tested for macintosh:

Works in Firefox 1.5.0.6 for mac.
Works in Opera 9.01 for mac.
Does not work in Safari 2.0.4.

It's pretty nice, and simple. I might take a crack at debugging Safari and posting the results.

Dec 10 '06 #2

archrajan

New Member

Great code.
But can you enhance it so that when a column is dragged(the selected column), it is visible when you hover over a different column.

Dec 12 '06 #3

Romulo NF

New Member

Great code.
But can you enhance it so that when a column is dragged(the selected column), it is visible when you hover over a different column.

The code is actually just using some css to change colors. The selected column becomes green while the mouse is pressed and the place where it will drop is blue.

I think you are talking about making the whole column to be "floating" with the mouse cursor. To do that we need a function to get the mouse coords and make the element that we click and drag to use position:absolu te and to follow these coords. The functionality will be the same in end.

An example of that function to move the elements:
Drag & Drop Example

ps: im supposing i can post that link here, sorry if i don´t!

Dec 13 '06 #4

chillAtGVC

New Member

The problem is that Safari does not (correctly) implement td.cellIndex. It always returns zero. Lame.

Change all foo.cellIndex to cellIndex(foo) and add these two methods:

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 function cellIndex(td) {

    var ci = -1;

    var parent_row = ascendDOM(td, 'tr');

    for (var i = 0; i < parent_row.cells.length; i++) {

        if (td === parent_row.cells[i]) {

            ci = i;

        }

    }

    return ci;

}
 
function ascendDOM(e,target) {

    while (e.nodeName.toLowerCase() !=target &&

           e.nodeName.toLowerCase() !='html')

        e=e.parentNode;

    return (e.nodeName.toLowerCase() == 'html')? null : e;

}

Feb 2 '07 #5

abducted

New Member

Thanks for the fix.

Feb 2 '07 #6

cdtkoenig

New Member

Here is a custom version, which highlight selected column to move, show insertion point as a vertical line (left cells border style update) during column drag (like firefox tab drag&drop) and keep original table styles. Seems to work on my stuff, hope it will help ;)

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//----------------------------------------------//

//    Created by: Romulo do Nascimento Ferreira    //

//    Email: romulo.nf@gmail.com                    //

//----------------------------------------------//
 
// NOTICE: This code may be use dto any purpose without further

// permission from the author. You may remove this notice from the

// final code, however its appreciated if you keep the author name/email.

// Email me if theres something needing improvement
 
var drag = false;

var colOrder=[];

var borderLeftStyle=[];

var borderLeftColor=[];

var cellBackgroundColor=[];

var borderLeftWidth=[];

var colNames=[];
 
function setTableColMovable(tableName,ColOrderFieldName,colNames) {

  tabelaDrag = document.getElementById(tableName);

  ColOrderField = document.getElementById(ColOrderFieldName);

  linhas = tabelaDrag.getElementsByTagName("TR");

  celulas = tabelaDrag.getElementsByTagName("TD");

  linhaUm = tabelaDrag.rows[0]

  ordenacaoMaxima = linhaUm.cells.length
 
  //store columns order

  for (x=0;x<linhaUm.cells.length;x++) 

    {

      arrastar(celulas[x]);

      celulas[x].onselectstart = function () { return false; } //prevent text selection

      celulas[x].onmouseover = pintar

      celulas[x].onmouseout = pintar

      celulas[x].onmouseup = pintar

    colOrder[x]=colNames[x];

    linhaUm.cells[x].style.cursor="pointer";

    }
 
    //store cells styles

    for(x=0; x<linhas.length; x++) {

      borderLeftStyle[x]=[];

      borderLeftColor[x]=[];    

      cellBackgroundColor[x]=[];

      borderLeftWidth[x]=[];    

        for (y=0; y<linhas[x].cells.length; y++) {

         borderLeftStyle[x][y]=linhas[x].cells[y].style.borderLeftStyle;

         borderLeftColor[x][y]=linhas[x].cells[y].style.borderLeftColor;

         cellBackgroundColor[x][y]=linhas[x].cells[y].style.backgroundColor;

         borderLeftWidth[x][y]=linhas[x].cells[y].style.borderLeftWidth;

         }

    }

  }
 
function getColOrder()

  {

  return colOrder

  }
 
function moveArrayCol(myArray,source,destination)

  {

  val=myArray.splice(source,1);

  if (source < destination)

    {myArray.splice(destination-1,0,val);}

  else

    {myArray.splice(destination,0,val);}

  return myArray

  }
 
function capturarColuna(obj) {

  coluna = cellIndex(obj)

return coluna

}
 
function orderTd (obj) {

  destino = cellIndex(obj)

  if (destino == null) return

  if (coluna == destino) return
 
  for (x=0; x<linhas.length; x++) 

    {

      tds = linhas[x].cells

      var celula = linhas[x].removeChild(tds[coluna])

          if (coluna < destino) 

        {

            linhas[x].insertBefore(celula, tds[destino-1])

            }

          else 

        {

            linhas[x].insertBefore(celula, tds[destino])

            }

      }

  moveArrayCol(colOrder,coluna,destino);

  //alert(colOrder);

}
 
function soltar(e){

    if (!e) e=window.event

    if (e.target) targ = e.target

    else if (e.srcElement) targ=e.srcElement

    orderTd(targ)

    drag = false
 
    for(x=0; x<linhas.length; x++) {

        for (y=0; y<linhas[x].cells.length; y++) {

        linhas[x].cells[y].style.borderLeftStyle=borderLeftStyle[x][y];

        linhas[x].cells[y].style.borderLeftColor=borderLeftColor[x][y];

        linhas[x].cells[y].style.backgroundColor=cellBackgroundColor[x][y];

        linhas[x].cells[y].style.borderLeftWidth=borderLeftWidth[x][y];

        }

    }

}
 
function arrastar(obj){

    if(!obj) return;

    obj.onmousedown = function(ev){

        //colunaAtual = cellIndex(this))

            for (x=0; x<linhas.length; x++) {

            linhas[x].cells[cellIndex(this)].style.backgroundColor="yellow"

            }

        drag = true

        capturarColuna(this);

        return false;

    }

}
 
function pintar(e) {

if (!e) e=window.event

ev = e.type
 
    if (ev == "mouseover") {

        if (drag) {

            for (x=0; x<linhas.length; x++) {

                if (cellIndex(this) !=coluna) { //(this.style.borderStyle !="dashed") {

                linhas[x].cells[cellIndex(this)].style.borderLeftStyle="solid";

                linhas[x].cells[cellIndex(this)].style.borderLeftColor="red";

                linhas[x].cells[cellIndex(this)].style.borderLeftWidth="2px";

                }

            }

        }

    }
 
    else if (ev == "mouseout") {

            if (drag) 

        {for (x=0; x<linhas.length; x++)  

          {if (cellIndex(this) !=coluna) //(this.borderStyle !="dashed") 

            {

            linhas[x].cells[cellIndex(this)].style.borderLeftStyle=borderLeftStyle[x] [cellIndex(this)];

            linhas[x].cells[cellIndex(this)].style.borderLeftColor=borderLeftColor[x] [cellIndex(this)];

            linhas[x].cells[cellIndex(this)].style.backgroundColor=cellBackgroundColor[x] [cellIndex(this)];            

            linhas[x].cells[cellIndex(this)].style.borderLeftWidth=borderLeftWidth[x] [cellIndex(this)];            

            }

          }

        }

  }
 
    else if (ev == "mouseup") {

      if (e.target) targ = e.target

      else if (e.srcElement) targ=e.srcElement

      orderTd(targ)

      drag = false

      //put columns new order in hidden field

      ColOrderField.value=colOrder;

      for(x=0; x<linhas.length; x++) {

          for (y=0; y<linhas[x].cells.length; y++) {

          linhas[x].cells[y].style.borderLeftStyle=borderLeftStyle[x][y];

          linhas[x].cells[y].style.borderLeftColor=borderLeftColor[x][y];

          linhas[x].cells[y].style.backgroundColor=cellBackgroundColor[x][y];

          linhas[x].cells[y].style.borderLeftWidth=borderLeftWidth[x][y];

          }

      }

   }
 
}
 
function cellIndex(td) {

    var ci = -1;

    var parent_row = ascendDOM(td, 'tr');

    for (var i = 0; i < parent_row.cells.length; i++) {

        if (td === parent_row.cells[i]) {

            ci = i;

        }

    }

    return ci;

}
 
function ascendDOM(e,target) {

    while (e.nodeName.toLowerCase() !=target &&

           e.nodeName.toLowerCase() !='html')

        e=e.parentNode;

    return (e.nodeName.toLowerCase() == 'html')? null : e;

}

Mar 10 '07 #7

cdtkoenig

New Member

I forgot to write that you need to call following function to activate DD on table, example :
setTableColMova ble("my_table_i d","one_html_fi eld",[0,1,2,3]);

this call initiate table DD and also specify an HTML field (hidden by example) to store reordered columns numbers list. So initial column numbers are to be passed into last param (here [0,1,2,3]) in setTableColMova ble call

hope it's clear cause it is time to launch ;)

Mar 10 '07 #8

Romulo NF

New Member

Hello again folks!
I´ve received some emails about issues on the performance of the table (especially in ie) while working with big tables (30+ columns / 100+ lines) and i´ve worked a bit more into the script to improve it!

In the older version i was using classnames to give a visual effect of the column that is being moved and to where it was being moved, having to use some loops to change all classes and then change em back to the original afterwards! All those loops were causing an annoying delay!

There are still some changes to be done like: allowing more than 1 table in the same page to have the "drag & drop" implemented! I will work on that soon!

Email me with suggestions / issues so i can improve the script
I´ve tested it only under ie/firefox/mozilla/netscape, so some feedback from other browsers are welcome

call the script using:
allowDragging(t ableId)

file: movecolumn.js

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//----------------------------------------------//

//    Created by: Romulo do Nascimento Ferreira    //

//    Email: romulo.nf@gmail.com                    //

//----------------------------------------------//

//

// Drag & Drop Columns

//

// NOTICE: This code may be use to any purpose without further

// permission from the author. You may remove this notice from the

// final code, however its appreciated if you keep the author name/email

// Email me if there´s something needing improvement
 
var drag = false;

document.onmouseup = release;

document.onmousemove = mouseCoords;
 
function allowDragging(tableId) {

dragTable = document.getElementById(tableId)
 
dragTableHandler = dragTable.getElementsByTagName("thead")[0] ? dragTable.getElementsByTagName("thead")[0].getElementsByTagName("tr")[0].cells : dragTable.getElementsByTagName("tr") ? dragTable.getElementsByTagName("tr")[0].cells : null
 
maxIndex = dragTableHandler.length
 
tableRows = dragTable.getElementsByTagName("tr");
 
    for (x=0; x<dragTableHandler.length; x++) {

    makeDraggable(dragTableHandler[x])

    dragTableHandler[x].onselectstart = function() { return false; }

    }
 
dragTable.onmouseup = release;

}
 
function makeDraggable(obj) {

    if(!obj) return;

    obj.onmousedown = function(ev){

        if (drag == true) return

        captureColumnIndex(this);    

        createDraggedColumn(this)

        drag = true

        return false;

    }

}
 
function release(e) {

    if (drag == false) return

    if (!e) e=window.event

    if (e.target) targ = e.target

    else if (e.srcElement) targ=e.srcElement

    orderTd(targ)

    drag = false
 
    if (document.getElementById("drag")) {

    corpo = document.getElementsByTagName("body")[0];

    remover = document.getElementById("drag");

    corpo.removeChild(remover)

    }

}
 
function captureColumnIndex(obj) {

columnIndex = obj.cellIndex

return columnIndex

}
 
function orderTd(obj) {

newIndex = obj.cellIndex
 
if (newIndex == null) return

if (columnIndex == newIndex) return
 
    for (x=0; x<tableRows.length; x++) {

    tds = tableRows[x].cells

    var cell = tableRows[x].removeChild(tds[columnIndex])

        if (newIndex >= maxIndex || newIndex + 1 >= maxIndex) {

        tableRows[x].appendChild(cell)

        }

        else {

        tableRows[x].insertBefore(cell, tds[newIndex])

        }

    }

}
 
function createDraggedColumn(obj) {
 
draggedTable = document.createElement("table");

draggedTable.id = "drag"
 
draggedThead = document.createElement("thead");

draggedTheadTr = document.createElement("tr");

draggedTheadTd = document.createElement("td");

draggedTheadTd.innerHTML = tableRows[0].cells[columnIndex].innerHTML

draggedTheadTr.appendChild(draggedTheadTd)

draggedThead.appendChild(draggedTheadTr)

draggedTable.appendChild(draggedThead)
 
draggedTbody = document.createElement("tbody");    
 
for (x=1; x<tableRows.length; x++) {

    draggedTr = document.createElement("tr");

    draggedTd = document.createElement("td");

    draggedTd.innerHTML = tableRows[x].cells[columnIndex].innerHTML

    draggedTr.appendChild(draggedTd)

    draggedTbody.appendChild(draggedTr)

}
 
draggedTable.appendChild(draggedTbody)

draggedTable.style.filter = "alpha(opacity=70)";

draggedTable.style.opacity = "0.7"

draggedTable.style.mozOpacity = "0.7"
 
document.getElementsByTagName("body")[0].appendChild(draggedTable)

draggedTable.style.top = posY

draggedTable.style.left = posX

}
 
function mouseCoords(e) {

if (!e) e = window.event
 
if(e.pageY) {posX=e.pageX; posY=e.pageY;}
 
else if (e.clientY) {posX=e.clientX + ietruebody().scrollLeft; posY=e.clientY + ietruebody().scrollTop;}
 
    if (document.getElementById("drag")) {

    dragTable = document.getElementById("drag");

    dragTable.style.top = posY + 3 + "px"

    dragTable.style.left = posX + 7 + "px"

    }
 
return {x:posX, y:posY}

}
 
function ietruebody(){

return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body

}

Apr 17 '07 #9

Romulo NF

New Member

file: movecolumns.css

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/* table general style */

table {border-collapse:collapse}

table td {border:1px solid #000; padding:2px 5px; text-align:center; cursor:pointer; font:bold 12px verdana;}

table thead td {background:#1864E0; color:#fff;}
 
/* drag td style */
 
#drag {position:absolute; border:1px solid #000; text-align:center; cursor:pointer; font:bold 12px verdana; color:#fff;}

#drag thead td {background:#1864E0; color:#fff;}

#drag td {border:1px solid #000; padding:2px 5px; text-align:center; cursor:pointer; font:bold 12px verdana; color:#000}

file: movecolumns.htm l

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 
<html>

<head>

    <title>Drag and Drop Columns</title>
 
<script type="text/javascript" src="movecolumn.js"></script>
 
<link rel="StyleSheet" href="movecolumn.css" type="text/css" />
 
</head>
 
<body>
 
<table id="tabela">

    <thead>

        <tr>

            <td>Column1</td>

            <td>Column2</td>

            <td>Column3</td>

            <td>Column4</td>

            <td>Column5</td>

            <td>Column6</td>

            <td>Column7</td>

            <td>Column8</td>

            <td>Column9</td>

        </tr>

    </thead>

    <tbody>    

        <tr>

            <td>A1</td>

            <td>A2</td>

            <td>A3</td>

            <td>A4</td>

            <td>A5</td>

            <td>A6</td>

            <td>A7</td>

            <td>A8</td>

            <td>A9</td>            

        </tr>

        <tr>

            <td>B1</td>

            <td>B2</td>

            <td>B3</td>

            <td>B4</td>

            <td>B5</td>

            <td>B6</td>

            <td>B7</td>

            <td>B8</td>

            <td>B9</td>            

        </tr>

        <tr>

            <td>C1</td>

            <td>C2</td>

            <td>C3</td>

            <td>C4</td>

            <td>C5</td>

            <td>C6</td>

            <td>C7</td>

            <td>C8</td>

            <td>C9</td>            

        </tr>

        <tr>

            <td>D1</td>

            <td>D2</td>

            <td>D3</td>

            <td>D4</td>

            <td>D5</td>

            <td>D6</td>

            <td>D7</td>

            <td>D8</td>

            <td>D9</td>            

        </tr>

        <tr>

            <td>E1</td>

            <td>E2</td>

            <td>E3</td>

            <td>E4</td>

            <td>E5</td>

            <td>E6</td>

            <td>E7</td>

            <td>E8</td>

            <td>E9</td>            

        </tr>

        <tr>

            <td>F1</td>

            <td>F2</td>

            <td>F3</td>

            <td>F4</td>

            <td>F5</td>

            <td>F6</td>

            <td>F7</td>

            <td>F8</td>

            <td>F9</td>            

        </tr>        

    </tbody>

</table>
 
<script>

allowDragging("tabela")

</script>
 
</body>
 
</html>

ps: for some reason i couldnt put everything in 1 post

Apr 17 '07 #10

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