On Tue, Apr 29, 2008 at 6:13 PM, Mike van Lammeren <[EMAIL PROTECTED]> wrote:
> var tableRows = tableElement.down().childElements();
What is the purpose of down() in this case? Is it to get to the tbody?
To avoid fetching every row in the table, you could get away with
using a child selector to only fetch the row you are looking for.
tableElement.select('tr:nth-child(' + rowIndex + ')');
You'd have to check if there was a thead or tfoot though, since this
would be higher up in the DOM than the tbody.
Pretty handy little extension though :)
-justin
On Tue, Apr 29, 2008 at 6:13 PM, Mike van Lammeren <[EMAIL PROTECTED]> wrote:
>
> Here are some handy extensions to select table rows and columns:
>
> var TableUtils = {
> /**
> * @param element a table element
> * @param integer the requested row
> * @return array an array of table cell elements
> **/
> getRowCells: function(tableElement, rowIndex){
> tableElement = $(tableElement); // extend the table element
> var tableRows = tableElement.down().childElements();
> if(tableRows[rowIndex])
> {
> return (tableRows[rowIndex]).descendants();
> }
> return [];
> },
> /**
> * @param element a table element
> * @param integer the requested row
> * @return array an array of table cell elements
> **/
> getColumnCells: function(tableElement, columnIndex){
> tableElement = $(tableElement); // extend the table element
> var columnCells = [];
> var tableRows = tableElement.down().childElements();
> tableRows.each(function(trEl, index){ // loop over each table
> row
> var tCells = trEl.descendants(); // table cells in row
> if(tCells[columnIndex])
> {
> columnCells.push($(tCells[columnIndex])); // extend
> each tableElement
> }
> });
> return columnCells;
> }
> }
> Element.addMethods('table', TableUtils);
>
>
> Example calls:
> $('testTable').getColumnCells(1).invoke('fade');
> $('testTable').getRowCells(1).invoke('fade');
>
> What do you think? Is there a faster/more elegant solution?
>
> Mike van Lammeren
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "Ruby
on Rails: Spinoffs" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/rubyonrails-spinoffs?hl=en
-~----------~----~----~----~------~----~------~--~---
