How to set lookup value automatically from link

I am using SharePoint 2019 and Plumsail forms
I have 2 lists

List A
Title, Status, LinktoNewItem

List B
Title, Status, Lookupto_ListA

In List A LinktoNewItem , is link to newitem form to List B. When user click this link it will redirected to List B New Item Form and I want to set Lookupto_ListA will automatically set based on the row item title.

How to achieve in Plumsail form. (LinktoNewItem can set query string .. but on List B form can

Dear @sanaullah102,
Where are your users clicking this link? In List View or on a form?

I have one webpart (rest api call and displaying to html table) .it fetch all records from list A, and want to add new column, link to List B

Dear @sanaullah102,
Can you add parameters to the URL? For example:{listId}&ID=1&lookupvalue=test

on second list B ( new Item form) , how to retrieve the query string value. ?

Dear @sanaullah102,
Try JS code like this:

fd.spRendered(function() {
    const queryString =;
    const urlParams = new URLSearchParams(queryString);
    // Replace SingleLineText0 with teh internal name of the field
    // 'id' is the name of the parametr
    fd.field('Lookup').value = urlParams.get('lookupvalue');

Lookup value should be the ID for this to work.

I am trying to create redirect URL's for Forms from C# based webparts.

SPList _list = oWeb.Lists.TryGetList(_SurveryListName);
Guid _ListGuid = _list.ID;
string URL = SPContext.Current.Web.Url + "/_layouts/15/listform.aspx?PageType=8&ListId=" + _ListGuid + "&CIDLookup=" + _itrID;

Redirect is working and it will reach to new item form , But it will remove the additional Query string, Query string value I need to use in New Item form to set control value on the newitem form.


Can you please help to check.
I am using SharePoint 2019 and web part is written in C#

Dear @sanaullah102,
If you're not using Form Sets in redirection, you can give a direct link to form instead, and add your params to it: