добавлено чтение с db

Pages/Results.cshtml.cs

@@ -1,10 +1,9 @@
-using Microsoft.AspNetCore.Mvc;
+using Microsoft.Data.Sqlite;
 using Microsoft.AspNetCore.Mvc.RazorPages;
 using System.Drawing;
-using System.Drawing.Drawing2D;
 using System.Drawing.Imaging;
 using System.Drawing.Text;
-using System.IO;
+
 
 public class ResultsModel : PageModel
 {
@@ -205,6 +204,33 @@ public class ResultsModel : PageModel
         ResultImage("Result_WithBlank", mDisk_nom_2_O, mDisk_max_2_O, _dd, d_BilletWithBlank, limit6, _H, H_BilletWithBlank, _D, D_BilletWithBlank, limit4);
     }
 
+
+    public (int Delta, int Tolerance) SearchLimit(double D, double H)
+    {
+        using var connection = new SqliteConnection("Data Source=tolerances.db");
+        connection.Open();
+
+        var command = connection.CreateCommand();
+        command.CommandText = @"
+        SELECT Delta, Tolerance
+        FROM Tolerances
+        WHERE @height > HeightFrom 
+          AND @height <= HeightTo
+          AND @diameter > DiameterFrom 
+          AND @diameter <= DiameterTo
+        LIMIT 1";
+
+        command.Parameters.AddWithValue("@height", H);
+        command.Parameters.AddWithValue("@diameter", D);
+
+        using var reader = command.ExecuteReader();
+        if (reader.Read())
+        {
+            return (reader.GetInt32(0), reader.GetInt32(1));
+        }
+        return (-1, -1);
+    }
+/*
     private (int, int) SearchLimit(double D, double H)
     {
         // Диапазоны высоты H 
@@ -291,7 +317,7 @@ public class ResultsModel : PageModel
 
         return limits[hIndex, dIndex];
     }
-
+*/
     private string ResultImage(string imageName, double weightNom, double weightMax, double d, double d_Billet,
                                double limit5, double H, double H_Billet, double D, double D_Billet, double limit3)
     {