set fetchXml dynamically to a subgrid in classic UI and Unified Client Interface

fetchsubgridClassicUIAndUCI.js

function FetchViaName(executionContext) {
  var formContext = executionContext.getFormContext();
  var fullname = null;
  var tabObj = formContext.ui.tabs.get("tab_summary");
  var secObj = tabObj.sections.get("sec_contactCompaigns");
  secObj.setVisible(false)

 
  var isUnified = isUCI()
  //--------------------------------------Unified Interface----------------------------------------//
  if (isUnified) {
    console.log("IsUnified Interface....TRUE");

    var firstName = formContext.getAttribute("firstname").getValue();
    var lastName = formContext.getAttribute("lastname").getValue();

    if (firstName == null || lastName == null) {
      setTimeout(function () { FetchViaName(executionContext); }, 2000);
      return;
    }

    fullname = firstName + " " + lastName;
    console.log("fetch compaignsContact: " + fullname);
    var fetchXml = '<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="true">' +
      '<entity name="campaign">' +
      '<attribute name="name" />' +
      '<order attribute="name" descending="true" />' +
      '<link-entity name="campaignitem" from="campaignid" to="campaignid" visible="false" intersect="true">' +
      '<link-entity name="list" from="listid" to="entityid" alias="al">' +
      '<link-entity name="listmember" from="listid" to="listid" visible="false" intersect="true">' +
      '<link-entity name="contact" from="contactid" to="entityid" alias="am">' +
      '<filter type="and">' +
      '<condition attribute="fullname" operator="eq" value="' + fullname + '"' + '/>' +
      '</filter>' +
      '</link-entity>' +
      '</link-entity>' +
      '</link-entity>' +
      '</link-entity>' +
      '</entity>' +
      '</fetch>';

    var contactCompaigns = formContext.getControl("ContatCompaigns");

    if (contactCompaigns == null) {
      setTimeout(function () { FetchViaName(executionContext); }, 2000);
      return;
    }

    else {
      //set fetchXml
      var setFetchXmlStr = Microsoft.Crm.Client.Core.Storage.DataApi.ListQuery.prototype.set_FetchXml.toString();
      var newFunc = setFetchXmlStr.replace("function(e){", "function(e){if (e.indexOf('ZZZAAA') >= 0) {e = fetchXml;}");
      eval("Microsoft.Crm.Client.Core.Storage.DataApi.ListQuery.prototype.set_FetchXml=" + newFunc);
      contactCompaigns.refresh();
      secObj.setVisible(true)
      console.log("refresh............")


    }
  }



  //--------------------------------------legacy web client----------------------------------------//
  else {
    console.log("IsUnified Interface....FALSE");
    fullname = formContext.getAttribute("fullname").getValue();
    console.log("FullName: " + fullname)
    var contactCompaigns = window.parent.document.getElementById("ContatCompaigns");

    if (contactCompaigns == null) {
      setTimeout(function () { FetchViaName(executionContext); }, 2000);
      return;
    }
    else {
      var fetchXml = '<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="true">' +
        '<entity name="campaign">' +
        '<attribute name="name" />' +
        '<order attribute="name" descending="true" />' +
        '<link-entity name="campaignitem" from="campaignid" to="campaignid" visible="false" intersect="true">' +
        '<link-entity name="list" from="listid" to="entityid" alias="al">' +
        '<link-entity name="listmember" from="listid" to="listid" visible="false" intersect="true">' +
        '<link-entity name="contact" from="contactid" to="entityid" alias="am">' +
        '<filter type="and">' +
        '<condition attribute="fullname" operator="eq" value="' + fullname + '"' + '/>' +
        '</filter>' +
        '</link-entity>' +
        '</link-entity>' +
        '</link-entity>' +
        '</link-entity>' +
        '</entity>' +
        '</fetch>';
      if (contactCompaigns.control != null) {
        //Here i set the fetchxml directly to subgrid
        contactCompaigns.control.SetParameter("fetchXml", fetchXml); //set the fetch xml to the sub grid
        contactCompaigns.control.Refresh(); //refresh the sub grid using the new fetch xml
        secObj.setVisible(true)

      }
      else {
        setTimeout(function () { FetchViaName(executionContext); }, 2000);
      }
    }
  }
}

function isUCI() {
 return Xrm.Internal.isUci()
}