我正在使用带有多选过滤器的 JQGrid 来过滤各个列。目前我正在使用数据库主值填充过滤器（例如 SkillCategory 列）
{
name: 'SkillCategory', index: 'SkillCategory', width: '5%', sortable: true, resizable: true, stype: 'select',
searchoptions: {
clearSearch: false,
sopt: ['eq', 'ne'],
dataUrl: 'HttpHandler/DemandPropertyHandler.ashx?demprop=skillcat',
buildSelect: createSelectList,
attr: { multiple: 'multiple', size: 4 },
position: {
my: 'left top',
at: 'left bottom'
},
dataInit: dataInitMultiselect
}
},
这种方法正在填充所有可用的主列表（用于技能类别）以进行过滤。我想仅显示基于特定列的可用行中存在的可用过滤器值（对于 SkillCategory）。这应该将“Programming”和“Data”显示为 SkillCategory 过滤器的选项，因为行仅包含该列的“Programming”和“Data”值。
我找到了下面的代码（抱歉忘记了链接）
getUniqueNames = function (columnName) {
var texts = $("#listTableSupply").jqGrid('getCol', columnName), uniqueTexts = [],
textsLength = texts.length, text, textsMap = {}, i;
for (i = 0; i < textsLength; i++) {
text = texts[i];
if (text !== undefined && textsMap[text] === undefined) {
// to test whether the texts is unique we place it in the map.
textsMap[text] = true;
uniqueTexts.push(text);
}
}
return uniqueTexts;
}
buildSearchSelect = function (uniqueNames) {
var values = ":All";
$.each(uniqueNames, function () {
values += ";" + this + ":" + this;
});
return values;
}
setSearchSelect = function (columnName) {
$("#listTableSupply").jqGrid('setColProp', columnName,
{
searchoptions: {
sopt: ['eq', 'ne'],
value: buildSearchSelect(getUniqueNames(columnName)),
attr: { multiple: 'multiple', size: 3 },
dataInit: dataInitMultiselect
}
}
);
}
调用 setSearchSelect("SkillCategory")
.... caption: 'Supply',
emptyrecords: "No records to view",
loadtext: "Loading...",
refreshtext: "Refresh",
refreshtitle: "Reload Grid",
loadComplete: loadCompleteHandler1,
ondblClickRow: function (rowid) {
jQuery(this).jqGrid('viewGridRow', rowid);
},
beforeRequest: function () //loads the jqgrids state from before save
{
modifySearchingFilter.call(this, ',');
}
}).jqGrid('bindKeys');
$('#listTableSupply').bind('keydown', function (e) {
if (e.keyCode == 38 || e.keyCode == 40) e.preventDefault();
});
setSearchSelect("SkillCategory");
$('#listTableSupply').jqGrid('navGrid', '#pagerSupply', {
cloneToTop: true,
refresh: true, refreshtext: "Refresh", edit: false, add: false, del: false, search: false
}, {}, {}, {}, {
multipleSearch: true,
multipleGroup: true,
recreateFilter: true
}); .....
但似乎它不起作用。仅填充“全部”值。
任何想法我怎么能做到这一点。
更新1：
根据奥列格的建议，下面是对我有用的工作代码。
initializeGridFilterValue = function () {
//jQuery("#listTableSupply").jqGrid('destroyGroupHeader');
setSearchSelect("SkillCategory");
jQuery("#listTableSupply").jqGrid("filterToolbar", {
stringResult: true,
searchOnEnter: true,
defaultSearch: myDefaultSearch,
beforeClear: function () {
$(this.grid.hDiv).find(".ui-search-toolbar .ui-search-input>select[multiple] option").each(function () {
this.selected = false; // unselect all options
});
$(this.grid.hDiv).find(".ui-search-toolbar button.ui-multiselect").each(function () {
$(this).prev("select[multiple]").multiselect("refresh");
}).css({
width: "98%",
marginTop: "1px",
marginBottom: "1px",
paddingTop: "3px"
});
}
});
jQuery("#listTableSupply").jqGrid('setGridHeight', 300);
}
并从 loadComplete 事件中设置它，如下所示：
function loadCompleteHandler1() {
initializeGridFilterValue();
}