selectallrows very slow - Angular, Vue, React, Web Components, Javascript, HTML5 Widgets

Tagged: all, grid, jqxgrid, lag, row, select, selectallrows, slow

This topic contains 2 replies, has 2 voices, and was last updated by Dimitar 10 years, 5 months ago.

Viewing 3 posts - 1 through 3 (of 3 total)

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selectallrows very slow Posts

June 12, 2014 at 5:08 pm selectallrows very slow #55798

robertjohnson

Participant

Hi,

We have 900 rows in the grid. While doing select all the rows in the grid its taking
around 12 to 15 seconds.

$(jobgrid).jqxGrid(‘selectallrows’);

This is code we are using… How to improve the performance..
Can you please suggest any ideas to do…

Thanks
robert

June 12, 2014 at 11:25 pm selectallrows very slow #55800

robertjohnson

Participant

With 2000+ rows entries select operation taking more than one minute and hangs the browser…
while selecting few rows also taking too much time…

Thanks
robert

June 13, 2014 at 5:15 am selectallrows very slow #55804

Dimitar

Participant

Hello robert,

We do not experience such lag. Here is an example of selectallrows called for a grid with 2500 rows. The selection is happening almost instantaneously. Please try it out with the latest version of jQWidgets (3.3.0).

<!DOCTYPE html>
<html lang="en">
<head>
    <link rel="stylesheet" href="../../jqwidgets/styles/jqx.base.css" type="text/css" />
    <script type="text/javascript" src="../../scripts/jquery-1.10.2.min.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcore.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxdata.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxbuttons.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxscrollbar.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxmenu.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.edit.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxgrid.selection.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxlistbox.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxdropdownlist.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcheckbox.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxcalendar.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxnumberinput.js"></script>
    <script type="text/javascript" src="../../jqwidgets/jqxdatetimeinput.js"></script>
    <script type="text/javascript" src="../../jqwidgets/globalization/globalize.js"></script>
    <script type="text/javascript" src="../../scripts/demos.js"></script>
    <script type="text/javascript" src="generatedata.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            // prepare the data
            var data = generatedata(2500);

            var source =
            {
                localdata: data,
                datatype: "array",
                updaterow: function (rowid, rowdata, commit) {
                    // synchronize with the server - send update command
                    // call commit with parameter true if the synchronization with the server is successful 
                    // and with parameter false if the synchronization failder.
                    commit(true);
                },
                datafields:
                [
                    { name: 'firstname', type: 'string' },
                    { name: 'lastname', type: 'string' },
                    { name: 'productname', type: 'string' },
                    { name: 'available', type: 'bool' },
                    { name: 'quantity', type: 'number' },
                    { name: 'price', type: 'number' },
                    { name: 'date', type: 'date' }
                ]
            };

            var dataAdapter = new $.jqx.dataAdapter(source);

            // initialize jqxGrid
            $("#jqxgrid").jqxGrid(
            {
                width: 850,
                source: dataAdapter,
                editable: true,
                enabletooltips: true,
                selectionmode: 'multiplerows',
                columns: [
                  { text: 'First Name', columntype: 'textbox', datafield: 'firstname', width: 120 },
                  { text: 'Last Name', datafield: 'lastname', columntype: 'textbox', width: 120 },
                  { text: 'Product', columntype: 'dropdownlist', datafield: 'productname', width: 195 },
                  { text: 'Available', datafield: 'available', columntype: 'checkbox', width: 67 },
                  {
                      text: 'Ship Date', datafield: 'date', columntype: 'datetimeinput', width: 110, align: 'right', cellsalign: 'right', cellsformat: 'd',
                      validation: function (cell, value) {
                          if (value == "")
                              return true;

                          var year = value.getFullYear();
                          if (year >= 2015) {
                              return { result: false, message: "Ship Date should be before 1/1/2015" };
                          }
                          return true;
                      }
                  },
                  {
                      text: 'Quantity', datafield: 'quantity', width: 70, align: 'right', cellsalign: 'right', columntype: 'numberinput',
                      validation: function (cell, value) {
                          if (value < 0 || value > 150) {
                              return { result: false, message: "Quantity should be in the 0-150 interval" };
                          }
                          return true;
                      },
                      createeditor: function (row, cellvalue, editor) {
                          editor.jqxNumberInput({ decimalDigits: 0, digits: 3 });
                      }
                  },
                  { text: 'Price', datafield: 'price', align: 'right', cellsalign: 'right', cellsformat: 'c2', columntype: 'numberinput',
                      validation: function (cell, value) {
                          if (value < 0 || value > 15) {
                              return { result: false, message: "Price should be in the 0-15 interval" };
                          }
                          return true;
                      },
                      createeditor: function (row, cellvalue, editor) {
                          editor.jqxNumberInput({ digits: 3 });
                      }

                  }
                ]
            });

            // events
            $("#jqxgrid").on('cellbeginedit', function (event) {
                var args = event.args;
                $("#cellbegineditevent").text("Event Type: cellbeginedit, Column: " + args.datafield + ", Row: " + (1 + args.rowindex) + ", Value: " + args.value);
            });

            $("#jqxgrid").on('cellendedit', function (event) {
                var args = event.args;
                $("#cellendeditevent").text("Event Type: cellendedit, Column: " + args.datafield + ", Row: " + (1 + args.rowindex) + ", Value: " + args.value);
            });

            $("#selectAll").click(function () {
                $("#jqxgrid").jqxGrid("selectallrows");
            });
        });
    </script>
</head>
<body class='default'>
    <div id='jqxWidget'>
        <div id="jqxgrid">
        </div>
        <div style="font-size: 12px; font-family: Verdana, Geneva, 'DejaVu Sans', sans-serif;
            margin-top: 30px;">
            <div id="cellbegineditevent">
            </div>
            <div style="margin-top: 10px;" id="cellendeditevent">
            </div>
        </div>
    </div>
    <button id="selectAll">
        Select all 2500 rows</button>
</body>
</html>

Best Regards,
Dimitar

jQWidgets team
http://www.jqwidgets.com/

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