HTTPContext.Request Method Equivalent in .Net 6 - .net-6.0

Question

We used to write code in .Net Framework for DataTable filtering on server side.
This was the old code where HttpContext.Request was working fine. Now in .Net 6 how we can establish the same search and get HttpContext as well in any controller or model class from jquery.
This function is static and I am stuck in HttpContext.Request line where this is throwing exception "Httpcontext does not exist" even if we use IHttpContextAccessor here. How can we access that variable as that is defined in Program.cs.
public static DataTable FilterTable(DataTable dt, ref int Fcount, JQPM p)
{
p.sColumnslist = p.sColumns.Split(',');
string Fstring = ""; Int32 intVal = 0;
if (!string.IsNullOrEmpty(p.sSearch))
{
string[] Arr = p.sSearch.Trim().Split(' ');
for (int i = 0; i < Arr.Length; i++)
{
if (Arr[i] != "")
{
Fstring = "0=1 ";
for (int j = 0; j < p.sColumnslist.Length; j++)
{
if (Convert.ToBoolean(System.Web.HttpContext.Request["bSearchable_" + j]))
{
if (dt.Columns[p.sColumnslist[j]].DataType.Name == "String")
{
Fstring += " or " + p.sColumnslist[j] + " LIKE '%" + Arr[i] + "%'";
}
else if (dt.Columns[p.sColumnslist[j]].DataType.Name == "DateTime")
{
Fstring += " or " + p.sColumnslist[j] + "Format LIKE '%" + Arr[i] + "%'";
}
else
{
if (Int32.TryParse(Arr[i], out intVal))
{
Fstring += " or " + p.sColumnslist[j] + " = " + intVal;
}
}
}
}
//Fstring += " PartyName LIKE '%" + Arr[i] + "%'";
//if (Int32.TryParse(Arr[i], out intVal))
//{
// Fstring += " or SaleVoucherNo = " + intVal;
//}
//Fstring += " or SaleDateFormat LIKE '%" + Arr[i] + "%'";
//dt = GetDatatable(dt, Fstring, ref Fcount, p); Fstring = "";
dt = SearchDatatable(dt, Fstring, ref Fcount, p); Fstring = "";
}
}
}
//else
//{
//dt = GetDatatable(dt, Fstring, ref Fcount, p);
dt = GetDatatable(dt, ref Fcount, p);
//}
return dt;
}

Answer 1

System.Web.HttpContext has changed to Microsoft.AspNetCore.Http.HttpContext; you will need to pass the instance of this from where HttpContext is available into this function.
public static DataTable FilterTable(DataTable dt, ref int Fcount, JQPM p)
becomes
public static DataTable FilterTable(Microsoft.AspNetCore.Http.HttpContext httpContext, DataTable dt, ref int Fcount, JQPM p)
If you are retrieving "bSearchable_" + j from the QueryString and it will only contain that key once you can then use
httpContext.Request.Query["bSearchable_" + j].ToString();
where httpContext is the instance you pass in.
See:
https://learn.microsoft.com/en-us/aspnet/core/migration/http-modules?view=aspnetcore-6.0#migrating-to-the-new-httpcontext
https://learn.microsoft.com/en-us/aspnet/core/fundamentals/http-context?view=aspnetcore-6.0