如何删除addPreSearch过滤器

Question

我想删除PreSearch文件管理器,我的代码如下.我怎样才能实现同样的目标？

Xrm.Page.getControl("productid").removePreSearch(function () {
    Object
});

Xrm.Page.getControl("productid").addPreSearch(function () {
    fetchxml2();
});

function fetchxml2() {
    var fetchXml1 = "<filter type='and'>"
    fetchXml1 += "<condition attribute='productid' operator='in' >";
    for (var i = 0; i < Itemid.length; i++) {
        fetchXml1 += "<value>" + Itemid[i] + "</value>";
    }

    fetchXml1 += "</condition>";
    fetchXml1 += "</filter>";
    Xrm.Page.getControl("productid").addCustomFilter(fetchXml1);
    //Xrm.Page.getControl("productid").removePreSearch(fetchXml1);

};

Answer 1

为了能够通过移除处理程序removePreSearch,避免通过创建一个名为功能和使用,在这两种使用匿名函数addPreSearch和removePreSearch:

function preSearchHandler(){
    fetchxml2();
}

Xrm.Page.getControl("productid").removePreSearch(preSearchHandler);

Xrm.Page.getControl("productid").addPreSearch(preSearchHandler);