Check match when changing field 1

[stewartwebb]

Hi,

I have a <tr> on my page which is in a 'rows' tag and being loaded depending on how many records are on a file. So there could be many <tr> down the page.

The user can the select a value within 1 of the <td>'s within the <tr> which opens a mini window which they then enter a new value for that <td> selected.

As there are many rows what I want to do is loop through the <td>'s in the column that the use just selected to check if the value matches the value they have just entered.

The problem is the value which they just selected can also be in a different <td> in a different column, otherwise i could have just looped through all the <td> within the table.

I hope this makes sence, thanks

Stewart

 

[adam0101]

I haven't tested this, but maybe something like this, where colIndex is the number of the column you wish to search (starting with zero)

function isValueInColumn(value,colIndex){
  var tbl = document.getElementById("myTable");
  var trs = document.getElementsByTagName("TR");
  for(i=0;i<trs.length;i++){
    var tds = trs[i].getElementsByTagName("TD");
    if(colIndex >= tds.length) continue; // Not enough columns, so skip this row
    if(value==tds[colIndex]) return true;
  }
  return false;
}

Adam

 

[stewartwebb]

Thanks, The code isn't exactly right but i've changed it a bit and it now works how I want it too, brillant.

Stewart