I am having the same problem.
I modified jqgrid.src at line 6878 function showFilter(_filter)
function showFilter(_filter) {
showFrm = $($t).triggerHandler(“jqGridFilterBeforeShow”, [_filter]);
console.log(“shwFrm:”,showFrm);
if(typeof(showFrm) === “undefined”) {
showFrm = true;
}
if(showFrm && $.isFunction(p.beforeShowSearch)) {
console.log(“calling before show search, showFrm is now:”, showFrm);
showFrm = p.beforeShowSearch.call($t,_filter);
console.log(“function called, showFrm is now:”, showFrm);
}
if(showFrm) { … }
This produces:
shwFrm: