使用Jquery获取HTML表数据

Question

I am a newbie in Jquery. First of all I would like to say that I have researched almost a day regarding this query. TRied numberous methods, but none that works. I am trying to code a billing module with HTML, PHP and Jquery. Until now, I have successfully created the HTML tables. I would like the data from these tables to the retrieved to a PHP page, so that I can print them with a proper formatting.

The HTML Table is as follows.

<table id="items">
    <tbody>

      <tr>
          <th>SlNo</th>
          <th>Item</th>
          <th>Unit Cost</th>
          <th>Quantity</th>
          <th>Price</th>
      </tr>

 <tr class="item-row">
         <td class="item-name">
           <div class="delete-wpr">
          <input type="text" class="slno"/>
           <a class="delete" href="javascript:;" title="Remove row">X</a>
           </div>
         </td>

           <td><input type="text" class="slno"/></td>           

           <td><input type="text" class="cost"/></td>
           <td><input type="text" class="qty"/></td>
           <td><span class="price"></span></td>
      </tr>  



    <input type="button" value="submit" onClick="storeAndShowTableValues()"/>


    <tbody>

Now, the Jquery is as follows.

     var TableData = new Array();
     $('#items tr').each(function(row, tr){

     TableData[row]={
        "ItemNum" : $(tr).find('td:eq(0)').text(), 
        "Itemname" :$(tr).find('td:eq(1)').text(),
         "unitprice" : $(tr).find('td:eq(2)').text(),
         "Qty" : $(tr).find('td:eq(3)').text(),
        "price" : $(tr).find('td:eq(4)').text()
    }
}
); 
TableData.shift();  // first row is the table header - so remove

var TableData = JSON.stringify(TableData);

But the JSON object I am getting is garbage. The table data is not retrieved. Please help.

Answer 1

To get the value of an input field in jQuery you need to use the .val() function.

Also make sure that you select the input element within your td tag

http://api.jquery.com/val/

So your code should look something like this:

var TableData = new Array();

    $('#items tr').each(function(row, tr){

    TableData[row]={
        "ItemNum" : $(tr).find('td:eq(0) input').val(),
        "Itemname" :$(tr).find('td:eq(1) input').val(),
         "unitprice" : $(tr).find('td:eq(2) input').val(),
         "Qty" : $(tr).find('td:eq(3) input').val(),
        "price" : $(tr).find('td:eq(4)').text()
    }
}
);
TableData.shift();  // first row is the table header - so remove

TableData = JSON.stringify(TableData);

Answer 2

var TableData = new Array();

$('#items tr').each(function(row){

TableData[row]={
     "ItemNum" : $(this).find('td:eq(0) input').val(), 
    "Itemname" :$(this).find('td:eq(1) input').val(),
     "unitprice" : $(this).find('td:eq(2) input').val(),
     "Qty" : $(this).find('td:eq(3) input').val(),
    "price" : $(this).find('td:eq(4) input').val(),
  }
  }
); 
 TableData.shift();  // first row is the table header - so remove

  var TableData = JSON.stringify(TableData);

Answer 3

不要花很多时间，但是我认为您需要获取val（）而不是text（）或html（）