How to go through all the Rows of a DataTable when it is filtered?

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I try to go through all the rows that contain the " highlightchecked " class of a jquery DataTable using this code: 

    $(dtTable12.rows().nodes()).each(function () {
    if ($(this).closest('tbody tr').hasClass('highlightchecked')) {

        var material = {
            materialId: parseInt($(this).find('a[id^=materialId-]').attr('id').substring(11)),
            materialDescripcion: $.trim($(this).closest('tr').find('td:eq(0)').text()),
            cantidadProgramada: parseFloat($.trim($(this).closest('tr').find('td:eq(2)').text().replace(/\,/g, ''))),
            cantidadAdicional: 0,
            impuestoId: $('#dropDownImpuestos').val()
        };

        materiales.push(material);
    };
});

The previous code goes through all the rows but only if they are currently drawn on the screen, I mean the 10 that shows per page, I do not take those rows that are paged or hidden when I use the Search to perform a search only I get the items displayed.

I need to take all the rows that contain that class, since certain values of that row are used for another process and I require all the elements in which the user clicked.

Thanks in advance for any guidance.

    
asked by jose luis garcia 01.12.2016 в 03:59
source

3 answers

2

In your code you have:

  

dtTable12.rows().nodes()

I think that only with $(dtTable12).DataTable().rows() would you already get the list of all the rows, but dtTable12 what is the value ?, you can put it directly with the id as in my example.

I append more information about it for you to take into account, I hope you can help, greetings.

In my case with the following code: 

$("#example").DataTable().rows()

I get all the rows or rows of the table, and with this code: 

$("#example").DataTable().rows( { filter : 'applied'} ).nodes()

I get only the filtered ones.

Try the following example, filter with the combo and check in the console the number of rows that I am returning. 

$(document).ready(function() {
  $("#btnObtenerValores").click(function(){
    //var columna = $("#txtColumna").val();
    var columna = parseInt($("#cboHeaders").val());
    columna = isNaN(columna) ? 0 : columna;
    ObtenerValoresDataTable(columna);
  });


  // Setup - add a text input to each footer cell
  //$('#example tfoot th').each(function() { //Con este ejemplo poniendo en el footer del grid
  var headers = [];
  $('#example thead th').each(function() {
    var title = $(this).text();
    headers.push(title);
    //Si es la columna Office <-- aqui pongo el combo
    if (title == 'Office') {
      //$(this).html('<input type="text" placeholder="Search ' + title + '" />');

      //Recorro todos los rows para obtener los valores
      ObtenerValoresCombo(2,true);
      var combo = '<select style="width:100%">';
        combo += '<option id="0"></option>'
      $.each(valoresCombo, function(i, v) {
        combo += '<option id="' + i + '">' + v + '</option>'
      });
      combo = combo + '</select>';

      $(this).html(combo);
    }
  });
  
  //Pongo la lista de encabezados en el combo de Headers
  //console.log(headers);
  var datosHeader= '';
  $.each(headers, function(i, v) {
    datosHeader += '<option value="' + i + '">' + v + '</option>'
  });
  $("#cboHeaders").append(datosHeader);
      
  // DataTable
  var table = $('#example').DataTable({
	  sort:false
  });

  // Apply the search
  table.columns().every(function() {
    var that = this;

	$('select', this.header()).on('keyup change', function() {
      if (that.search() !== this.value) {
        that
          .search(this.value)
          .draw();
		  
		console.log("Filas Totales: " + $("#example").DataTable().rows().count()
		     + "\nFilas Filtradas: " + $("#example").DataTable().rows( { filter : 'applied'} ).nodes().length);
      }
    });
	/*
	//Ejemplo con el footer
    $('select', this.footer()).on('keyup change', function() {
      if (that.search() !== this.value) {
        that
          .search(this.value)
          .draw();
      }
    });*/
	
	
	
  });
	//alert("Filas: " + $("#example").dataTable().rows().count());
});



var valoresCombo = [];

//Esta funcion solo FILTRA dentro de los valores mostrados, por eso se ejecuta solo la primera vez, cuando el grid tiene toda la informacion
function ObtenerValoresCombo(columna,showAlert) {
	valoresCombo = [];
	$('#example tbody tr').each(function(indiceFila) {
		$(this).children('td').each(function(indiceColumna) {
			if(indiceColumna == columna){//Indice de la columna Office
				valoresCombo.push($(this).text());
			}
		});
	});
	
	//Remuevo los duplicados
	valoresCombo = valoresCombo.unique();
  if(showAlert){
    alert(valoresCombo);
  }
};


//Para recorrer TODA la informacion sin importar el pagina hay que tomar de base lo siguietne y no el grid como objeto WEB si no como objeto DataTable
function ObtenerValoresDataTable(columna) {
  //console.log(columna);
	var valores = [];
  
  //Obtengo toda la infromacion del GRID TR HTML
  //si esta activo deferRender: true entonces regresara 
  //                            solo la informacion de las paginas del grid vistas
  //var rows = $("#example").dataTable().fnGetNodes();  
  
  //Obtengo los valores del grid sin elemento html
  var rows = $("#example").dataTable().fnGetData()
  //console.log(rows);
    
	$(rows).each(function() {
    valores.push($(this)[columna]);
	});
	
	//Remuevo los duplicados
	valores = valores.unique();
  
  //$("#result").text(valores);
  
  var datosResult= '';
  $("#cboResults").html('');
  $.each(valores, function(i, v) {
    datosResult += '<option value="' + i + '">' + (i+1) +'-' + v + '</option>'
  });
  $("#cboResults").append(datosResult);
};

Array.prototype.unique=function(a){
  return function(){return this.filter(a)}}(function(a,b,c){return c.indexOf(a,b+1)<0
});
<link href="https://cdn.datatables.net/1.10.13/css/jquery.dataTables.min.css" rel="stylesheet" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.datatables.net/1.10.13/js/jquery.dataTables.min.js"></script>
<script src="prueba2.js"></script>
Columna: 
<!--<input type='number' id='txtColumna' value='2'/>-->
<select id="cboHeaders"></select>
<button id="btnObtenerValores">Obtener Valores</button>
<br>
Resultados:
<select id="cboResults"></select>
<!--<div id="result"></div>-->
<br>
<table id="example" class="display" cellspacing="0" width="100%">
  <thead>
    <tr>
      <th>Name</th>
      <th>Position</th>
      <th>Office</th>
      <th>Age</th>
      <th>Start date</th>
      <th>Salary</th>
    </tr>
  </thead>
  <!--<tfoot>
    <tr>
      <th>Name</th>
      <th>Position</th>
      <th>Office</th>
      <th>Age</th>
      <th>Start date</th>
      <th>Salary</th>
    </tr>
  </tfoot>-->
  <tbody>
    <tr>
      <td>Tiger Nixon</td>
      <td>System Architect</td>
      <td>Edinburgh</td>
      <td>61</td>
      <td>2011/04/25</td>
      <td>$320,800</td>
    </tr>
    <tr>
      <td>Garrett Winters</td>
      <td>Accountant</td>
      <td>Tokyo</td>
      <td>63</td>
      <td>2011/07/25</td>
      <td>$170,750</td>
    </tr>
    <tr>
      <td>Ashton Cox</td>
      <td>Junior Technical Author</td>
      <td>San Francisco</td>
      <td>66</td>
      <td>2009/01/12</td>
      <td>$86,000</td>
    </tr>
    <tr>
      <td>Cedric Kelly</td>
      <td>Senior Javascript Developer</td>
      <td>Edinburgh</td>
      <td>22</td>
      <td>2012/03/29</td>
      <td>$433,060</td>
    </tr>
    <tr>
      <td>Airi Satou</td>
      <td>Accountant</td>
      <td>Tokyo</td>
      <td>33</td>
      <td>2008/11/28</td>
      <td>$162,700</td>
    </tr>
    <tr>
      <td>Brielle Williamson</td>
      <td>Integration Specialist</td>
      <td>New York</td>
      <td>61</td>
      <td>2012/12/02</td>
      <td>$372,000</td>
    </tr>
    <tr>
      <td>Herrod Chandler</td>
      <td>Sales Assistant</td>
      <td>San Francisco</td>
      <td>59</td>
      <td>2012/08/06</td>
      <td>$137,500</td>
    </tr>
    <tr>
      <td>Rhona Davidson</td>
      <td>Integration Specialist</td>
      <td>Tokyo</td>
      <td>55</td>
      <td>2010/10/14</td>
      <td>$327,900</td>
    </tr>
    <tr>
      <td>Colleen Hurst</td>
      <td>Javascript Developer</td>
      <td>San Francisco</td>
      <td>39</td>
      <td>2009/09/15</td>
      <td>$205,500</td>
    </tr>
    <tr>
      <td>Sonya Frost</td>
      <td>Software Engineer</td>
      <td>Edinburgh</td>
      <td>23</td>
      <td>2008/12/13</td>
      <td>$103,600</td>
    </tr>
    <tr>
      <td>Jena Gaines</td>
      <td>Office Manager</td>
      <td>London</td>
      <td>30</td>
      <td>2008/12/19</td>
      <td>$90,560</td>
    </tr>
    <tr>
      <td>Quinn Flynn</td>
      <td>Support Lead</td>
      <td>Edinburgh</td>
      <td>22</td>
      <td>2013/03/03</td>
      <td>$342,000</td>
    </tr>
    <tr>
      <td>Charde Marshall</td>
      <td>Regional Director</td>
      <td>San Francisco</td>
      <td>36</td>
      <td>2008/10/16</td>
      <td>$470,600</td>
    </tr>
    <tr>
      <td>Haley Kennedy</td>
      <td>Senior Marketing Designer</td>
      <td>London</td>
      <td>43</td>
      <td>2012/12/18</td>
      <td>$313,500</td>
    </tr>
    <tr>
      <td>Tatyana Fitzpatrick</td>
      <td>Regional Director</td>
      <td>London</td>
      <td>19</td>
      <td>2010/03/17</td>
      <td>$385,750</td>
    </tr>
    <tr>
      <td>Michael Silva</td>
      <td>Marketing Designer</td>
      <td>London</td>
      <td>66</td>
      <td>2012/11/27</td>
      <td>$198,500</td>
    </tr>
    <tr>
      <td>Paul Byrd</td>
      <td>Chief Financial Officer (CFO)</td>
      <td>New York</td>
      <td>64</td>
      <td>2010/06/09</td>
      <td>$725,000</td>
    </tr>
    <tr>
      <td>Gloria Little</td>
      <td>Systems Administrator</td>
      <td>New York</td>
      <td>59</td>
      <td>2009/04/10</td>
      <td>$237,500</td>
    </tr>
    <tr>
      <td>Bradley Greer</td>
      <td>Software Engineer</td>
      <td>London</td>
      <td>41</td>
      <td>2012/10/13</td>
      <td>$132,000</td>
    </tr>
    <tr>
      <td>Dai Rios</td>
      <td>Personnel Lead</td>
      <td>Edinburgh</td>
      <td>35</td>
      <td>2012/09/26</td>
      <td>$217,500</td>
    </tr>
    <tr>
      <td>Jenette Caldwell</td>
      <td>Development Lead</td>
      <td>New York</td>
      <td>30</td>
      <td>2011/09/03</td>
      <td>$345,000</td>
    </tr>
    <tr>
      <td>Yuri Berry</td>
      <td>Chief Marketing Officer (CMO)</td>
      <td>New York</td>
      <td>40</td>
      <td>2009/06/25</td>
      <td>$675,000</td>
    </tr>
    <tr>
      <td>Caesar Vance</td>
      <td>Pre-Sales Support</td>
      <td>New York</td>
      <td>21</td>
      <td>2011/12/12</td>
      <td>$106,450</td>
    </tr>
    <tr>
      <td>Doris Wilder</td>
      <td>Sales Assistant</td>
      <td>Sidney</td>
      <td>23</td>
      <td>2010/09/20</td>
      <td>$85,600</td>
    </tr>
    <tr>
      <td>Angelica Ramos</td>
      <td>Chief Executive Officer (CEO)</td>
      <td>London</td>
      <td>47</td>
      <td>2009/10/09</td>
      <td>$1,200,000</td>
    </tr>
    <tr>
      <td>Gavin Joyce</td>
      <td>Developer</td>
      <td>Edinburgh</td>
      <td>42</td>
      <td>2010/12/22</td>
      <td>$92,575</td>
    </tr>
    <tr>
      <td>Jennifer Chang</td>
      <td>Regional Director</td>
      <td>Singapore</td>
      <td>28</td>
      <td>2010/11/14</td>
      <td>$357,650</td>
    </tr>
    <tr>
      <td>Brenden Wagner</td>
      <td>Software Engineer</td>
      <td>San Francisco</td>
      <td>28</td>
      <td>2011/06/07</td>
      <td>$206,850</td>
    </tr>
    <tr>
      <td>Fiona Green</td>
      <td>Chief Operating Officer (COO)</td>
      <td>San Francisco</td>
      <td>48</td>
      <td>2010/03/11</td>
      <td>$850,000</td>
    </tr>
    <tr>
      <td>Shou Itou</td>
      <td>Regional Marketing</td>
      <td>Tokyo</td>
      <td>20</td>
      <td>2011/08/14</td>
      <td>$163,000</td>
    </tr>
    <tr>
      <td>Michelle House</td>
      <td>Integration Specialist</td>
      <td>Sidney</td>
      <td>37</td>
      <td>2011/06/02</td>
      <td>$95,400</td>
    </tr>
    <tr>
      <td>Suki Burks</td>
      <td>Developer</td>
      <td>London</td>
      <td>53</td>
      <td>2009/10/22</td>
      <td>$114,500</td>
    </tr>
    <tr>
      <td>Prescott Bartlett</td>
      <td>Technical Author</td>
      <td>London</td>
      <td>27</td>
      <td>2011/05/07</td>
      <td>$145,000</td>
    </tr>
    <tr>
      <td>Gavin Cortez</td>
      <td>Team Leader</td>
      <td>San Francisco</td>
      <td>22</td>
      <td>2008/10/26</td>
      <td>$235,500</td>
    </tr>
    <tr>
      <td>Martena Mccray</td>
      <td>Post-Sales support</td>
      <td>Edinburgh</td>
      <td>46</td>
      <td>2011/03/09</td>
      <td>$324,050</td>
    </tr>
    <tr>
      <td>Unity Butler</td>
      <td>Marketing Designer</td>
      <td>San Francisco</td>
      <td>47</td>
      <td>2009/12/09</td>
      <td>$85,675</td>
    </tr>
    <tr>
      <td>Howard Hatfield</td>
      <td>Office Manager</td>
      <td>San Francisco</td>
      <td>51</td>
      <td>2008/12/16</td>
      <td>$164,500</td>
    </tr>
    <tr>
      <td>Hope Fuentes</td>
      <td>Secretary</td>
      <td>San Francisco</td>
      <td>41</td>
      <td>2010/02/12</td>
      <td>$109,850</td>
    </tr>
    <tr>
      <td>Vivian Harrell</td>
      <td>Financial Controller</td>
      <td>San Francisco</td>
      <td>62</td>
      <td>2009/02/14</td>
      <td>$452,500</td>
    </tr>
    <tr>
      <td>Timothy Mooney</td>
      <td>Office Manager</td>
      <td>London</td>
      <td>37</td>
      <td>2008/12/11</td>
      <td>$136,200</td>
    </tr>
    <tr>
      <td>Jackson Bradshaw</td>
      <td>Director</td>
      <td>New York</td>
      <td>65</td>
      <td>2008/09/26</td>
      <td>$645,750</td>
    </tr>
    <tr>
      <td>Olivia Liang</td>
      <td>Support Engineer</td>
      <td>Singapore</td>
      <td>64</td>
      <td>2011/02/03</td>
      <td>$234,500</td>
    </tr>
    <tr>
      <td>Bruno Nash</td>
      <td>Software Engineer</td>
      <td>London</td>
      <td>38</td>
      <td>2011/05/03</td>
      <td>$163,500</td>
    </tr>
    <tr>
      <td>Sakura Yamamoto</td>
      <td>Support Engineer</td>
      <td>Tokyo</td>
      <td>37</td>
      <td>2009/08/19</td>
      <td>$139,575</td>
    </tr>
    <tr>
      <td>Thor Walton</td>
      <td>Developer</td>
      <td>New York</td>
      <td>61</td>
      <td>2013/08/11</td>
      <td>$98,540</td>
    </tr>
    <tr>
      <td>Finn Camacho</td>
      <td>Support Engineer</td>
      <td>San Francisco</td>
      <td>47</td>
      <td>2009/07/07</td>
      <td>$87,500</td>
    </tr>
    <tr>
      <td>Serge Baldwin</td>
      <td>Data Coordinator</td>
      <td>Singapore</td>
      <td>64</td>
      <td>2012/04/09</td>
      <td>$138,575</td>
    </tr>
    <tr>
      <td>Zenaida Frank</td>
      <td>Software Engineer</td>
      <td>New York</td>
      <td>63</td>
      <td>2010/01/04</td>
      <td>$125,250</td>
    </tr>
    <tr>
      <td>Zorita Serrano</td>
      <td>Software Engineer</td>
      <td>San Francisco</td>
      <td>56</td>
      <td>2012/06/01</td>
      <td>$115,000</td>
    </tr>
    <tr>
      <td>Jennifer Acosta</td>
      <td>Junior Javascript Developer</td>
      <td>Edinburgh</td>
      <td>43</td>
      <td>2013/02/01</td>
      <td>$75,650</td>
    </tr>
    <tr>
      <td>Cara Stevens</td>
      <td>Sales Assistant</td>
      <td>New York</td>
      <td>46</td>
      <td>2011/12/06</td>
      <td>$145,600</td>
    </tr>
    <tr>
      <td>Hermione Butler</td>
      <td>Regional Director</td>
      <td>London</td>
      <td>47</td>
      <td>2011/03/21</td>
      <td>$356,250</td>
    </tr>
    <tr>
      <td>Lael Greer</td>
      <td>Systems Administrator</td>
      <td>London</td>
      <td>21</td>
      <td>2009/02/27</td>
      <td>$103,500</td>
    </tr>
    <tr>
      <td>Jonas Alexander</td>
      <td>Developer</td>
      <td>San Francisco</td>
      <td>30</td>
      <td>2010/07/14</td>
      <td>$86,500</td>
    </tr>
    <tr>
      <td>Shad Decker</td>
      <td>Regional Director</td>
      <td>Edinburgh</td>
      <td>51</td>
      <td>2008/11/13</td>
      <td>$183,000</td>
    </tr>
    <tr>
      <td>Michael Bruce</td>
      <td>Javascript Developer</td>
      <td>Singapore</td>
      <td>29</td>
      <td>2011/06/27</td>
      <td>$183,000</td>
    </tr>
    <tr>
      <td>Donna Snider</td>
      <td>Customer Support</td>
      <td>New York</td>
      <td>27</td>
      <td>2011/01/25</td>
      <td>$112,000</td>
    </tr>
  </tbody>
</table>

Update 2018-01-18

Look at the example by running stackoverflow from here:

It is giving me the TOTAL result and also the filtering.

Marcos Giner: Could you put your example code?

More or less understood what you want to do and add more information to the source check it:

    
answered by 14.12.2016 в 00:55
0

I see that you have problems with the concepts of server code (in your case I suppose ASP.NET) and client code (javascript, html, css). Once it is in the view it is no longer a DataTable, it is an html table. Second, the html table will only contain the elements that you are drawing, that is, the ones that it shows on the current page. So if you want to check the rows of a table that was in a previous page, you will have to save what fields they were. What I recommend is every time you change pages, which rows are marked with the "highlightchecked" class, and when you need all your records you will have to go to where you saved your marked rows and now if send them to the second process. As we are working with WEB the values are lost between calls, so you will have to save them in Session, your session can be html5 (sesionstorage, localstorage, webstorage), or with your server session (in ASP the variable Session). I do not know if this leaves you a little clearer things. Once you decide which type of session you are going to work with, we can help you see how you will save it.

    
answered by 14.12.2016 в 02:25
0

You retrieve the table with the .each in the jquery selector. That's why he does it only because of what's on screen. Change it to iterator () 

dtTable12.rows().iterator('row', function (context, index) {
    let node = $(this.row(index).node());
    node.find('.no').val();
    materialDescripcion: $.trim(node.find('td:eq(0)').text());
}
    
answered by 07.04.2018 в 18:54
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