如何返回参数和URL (jquery datatables & ASP.NET MVC)

public class DataTablesViewModel
{
    public int Draw { get; set; }
    public int Start { get; set; }
    public int Length { get; set; }
    public string SearchValue { get; set; }
    // 其他需要的参数

    public string GetUrl()
    {
        // 构建URL
        // 返回URL
    }
}

$(document).ready(function() {
    $('#dataTable').DataTable({
        "processing": true,
        "serverSide": true,
        "ajax": {
            "url": '@Url.Action("GetData", "ControllerName")',
            "type": "POST",
            "data": function (d) {
                var viewModel = new DataTablesViewModel();
                viewModel.Draw = d.draw;
                viewModel.Start = d.start;
                viewModel.Length = d.length;
                viewModel.SearchValue = d.search.value;
                // 设置其他参数

                return viewModel;
            }
        },
        // 其他DataTable配置
    });
});

[HttpPost]
public ActionResult GetData(DataTablesViewModel viewModel)
{
    // 根据参数进行数据查询和处理
    // 构建返回的JSON数据

    return Json(new
    {
        draw = viewModel.Draw,
        recordsTotal = totalRecords,
        recordsFiltered = filteredRecords,
        data = data
    });
}