Unregistering a filter
Name Surname Marital status Employed
Joe Crosswave Married False
Merry Lisel Widowed
Henry Crux Single True
Cody Jurut False
Simon Scranton Single
Leena Laurent Divorced False
Ode Cosmides Married True
Diandra Mizner Single False
Pete Cassel Married False
Nicky Tremblay Married True
Startup 

MvcGrid.Filters.Unregister(typeof(String), "starts-with")
MvcGrid.Filters.Unregister(typeof(String), "ends-with")
View 

@model IQueryable<Person>

@(Html
    .Grid(Model)
    .Build(columns =>
    {
        columns.Add(model => model.Name).Titled("Name");
        columns.Add(model => model.Surname).Titled("Surname");
        columns.Add(model => model.MaritalStatus).Titled("Marital status");

        columns.Add(model => model.IsWorking).Titled("Employed");
    })
    .Empty("No data found")
    .Filterable()
)
Javascript 

var CustomTextFilter = (function (base) {
    MvcGridExtends(CustomTextFilter, base);

    function CustomTextFilter(column) {
        base.call(this, column);

        this.methods = ['contains', 'equals', 'not-equals'];
    }

    return CustomTextFilter;
})(MvcGridTextFilter);

new MvcGrid(document.querySelector('.mvc-grid'), {
    filters: {
        'text': CustomTextFilter
    }
});