匹配表列宽的文本框

Question

I have this table with a textbox for each column (they are going to be used for filtering). The textboxes should be the same width as the corresponding column.

This is as far as I've gotten (simplified version): http://jsfiddle.net/9uUpP/

Pseudo-code explaining what I am trying to do with my current script:

document ready{
    var index = 0;
    for each(th){
        textboxNr(index).width = this.width;
        index++;
    }
}

As you can see, the textboxes doesn't match the columns in width.

important: The table + content is generated and may change from time to time, so I have to make a dynamic solution. The number of columns will always be the same, but their width may change

Answer 1

First child will not be 0th child. So index should be 1 initially.

Look here . It says children index starts with 1.

Then px is not needed in width, just the value does enough. Check here

Here is the updated working jsFiddle

Your code should be,

$(document).ready(function () {
    var index = 1;
    $("#table th").each(function () {
        $('input[type="text"]:nth-child('+index+')').css('width',$(this).width());
        index = index+1;
    });
});

Answer 2

There's no need of an extra variable for this, you can use the index parameter in the each method itself, along with the :eq() Selector like:

$(document).ready(function () {
    $("#table th").each(function (index) {
        $('input[type="text"]:eq(' + index + ')').css('width', $(this).width());
    });
});

I have used :eq() here instead of :nth-child(n) since :nth-child(n) uses 1-based indexing to conform to the CSS specification but the index parameter in the each method starts from 0 and :eq() use 0-based indexing.

FIDDLE DEMO

Answer 3

I believe the indexes were incorrect...

$(document).ready(function () {
    $("#table th").each(function (i, v) {
        $('input[type="text"]:nth-child(' + (i+1) + ')').css('width', $(this).width() + 'px');
    });
});

jsFiddle demo!