Question

using ie8, jqgrid 4.3.3, jquery 1.7.2 or 1.5.2, multiple search seems to miss some search parameters.
on adding a new search row for the 1st time, it appears in the request body but with a blank value (“”)
such as.

"filters":"{\"groupOp\":\"AND\",\"rules\":[{\"field\":\"code\",\"op\":\"eq\",\"data\":\"\"}]}", 

subsequent search with the same parameters sends the correct vlaue.
My basic setup is as follows (simplified)

$('#Table').jqGrid({
         //....
    datatype: 'json',
    colNames: ['Code'],
    colModel: [{
        name: 'Code',
        index: 'Code'}],
    pager: '#Pager'
}).jqGrid('navGrid', '#Pager', {
    add: false,
    edit: false,
    del: false,
    refresh: false
}, {}, {}, {}, {
    multipleSearch: true
}).trigger('reloadGrid');

UPDATED: added jsfiddle

after a long time, I found that the error happens only if I am using cmTemplate to specify searchoptions sopt and when I click on ‘find’ without 1st clicking outside the data text box.
See jsfiddle here (remember to click the find button directly after typing the search value)

Answer 1

I suppose, it’s an old bug with refreshing of jqGrid input fields which I described here. You can try to insert the following callback

afterRedraw: function () {
    $(this).find(".input-elm").triggerHandler('change', [true]);
}

like here. You can also try to use jqGrid 4.4.1 instead of 4.3.3. The version should have no such problems.

UPDATED: I found that my previously posted and committed changes was reverted back: see here. My suggestions was collection of many improvements:

1. the style of buttons in the searching dialog was used like in jQuery UI and in all other parts of jqGrid. One could use uiButtons: false to use the old style.
2. one could change the default names “+”, “-” and “+ {}” buttons and the tooltips which are all in English only in the current version of jqGrid ('Add rule', 'Delete rule', 'Add subgroup', 'Delete group').
3. The focus will be additionally set to input controls or buttons. It allows to use searching dialog with the keyboards only without require to use mouse.
4. It will be triggered "change" events on all input controls before the final reading of data from the searching dialog.

The last changes could be important to fix your problem.

One should modify the implementation of the filterData function. One should add the lines

$(this).find(".input-elm").each(function() {
    $(this).triggerHandler("change");
});

before the line.

The problem is that jqGrid bind ‘change’ event to all input fields of the searching dialog (see the lines). After the user type the data for the searching the ‘change’ event will be triggered and the internal data filter (see rule.data, which is the part of the filter, in the line) will be modified. If the user click on Search button the current value of filter will be get (see the line). The problem is that the change event will be processed in some web browsers after processing of the 'click' event on the “Search” button. So the input data from the last searching filter could be not yet set. The call of .triggerHandler("change") on all input controls before the data from the filter will be returned could fix the problem. In the case some unneeded change events could be called, but one will be sure that the data in filter are the same as the data from the.

I think that reverting of the changes was the bad idea.

If one would use searchOnEnter: true option the usage of .triggerHandler("change") and to start searching with Enter key the problem should not take place because of the line

$("#"+fid+"_search").focus().click();

where the focus will be explicitly set to “Search” button before processing of the click event. In the way the "change" event will be indirectly triggered and the data in the filter will be refreshed.

I think that one can fix the problem which you described without direct triggering of change events. Instead of that one can include explicit setting of the focus

$("#"+fid+"_search").focus();

inside of click event handler (see the line). It’s important to do this before the line where .jqFilter('filterData') will be called.