Index: System.Data.SQLite/SQLiteConvert.cs
==================================================================
--- System.Data.SQLite/SQLiteConvert.cs
+++ System.Data.SQLite/SQLiteConvert.cs
@@ -579,11 +579,11 @@
       typeof(object),   // Uninitialized (0)
       typeof(Int64),    // Int64 (1)
       typeof(Double),   // Double (2)
       typeof(string),   // Text (3)
       typeof(byte[]),   // Blob (4)
-      typeof(DBNull),   // Null (5)
+      typeof(object),   // Null (5)
       typeof(DateTime), // DateTime (10)
       typeof(object)    // None (11)
     };
 
     /// <summary>

ADDED   Tests/tkt-48a6b8e4ca.eagle
Index: Tests/tkt-48a6b8e4ca.eagle
==================================================================
--- Tests/tkt-48a6b8e4ca.eagle
+++ Tests/tkt-48a6b8e4ca.eagle
@@ -0,0 +1,88 @@
+###############################################################################
+#
+# tkt-48a6b8e4ca.eagle --
+#
+# Written by Joe Mistachkin.
+# Released to the public domain, use at your own risk!
+#
+###############################################################################
+
+package require Eagle
+package require Eagle.Library
+package require Eagle.Test
+
+runTestPrologue
+
+###############################################################################
+
+package require System.Data.SQLite.Test
+runSQLiteTestPrologue
+
+###############################################################################
+
+runTest {test tkt-48a6b8e4ca-1.1 {SQLiteTypeToType with NULL values} -setup {
+  setupDb [set fileName tkt-48a6b8e4ca-1.1.db]
+} -body {
+  set id [object invoke Interpreter.GetActive NextId]
+  set dataSource [file join [getDatabaseDirectory] $fileName]
+
+  sql execute $db {
+    CREATE TABLE t1(x);
+  }
+
+  set sql { \
+    PRAGMA table_info(t1); \
+  }
+
+  unset -nocomplain results errors
+
+  set code [compileCSharpWith [subst {
+    using System.Data;
+    using System.Data.SQLite;
+
+    namespace _Dynamic${id}
+    {
+      public static class Test${id}
+      {
+        public static void Main()
+        {
+          using (SQLiteConnection connection = new SQLiteConnection(
+              "Data Source=${dataSource};"))
+          {
+            connection.Open();
+
+            using (SQLiteCommand command = new SQLiteCommand("${sql}",
+                connection))
+            {
+              using (SQLiteDataAdapter dataAdapter = new SQLiteDataAdapter(
+                  command))
+              {
+                using (DataSet dataSet = new DataSet())
+                {
+                  dataAdapter.Fill(dataSet);
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }] true true true results errors System.Data.SQLite.dll]
+
+  list $code $results \
+      [expr {[info exists errors] ? $errors : ""}] \
+      [expr {$code eq "Ok" ? [catch {
+        object invoke _Dynamic${id}.Test${id} Main
+      } result] : [set result ""]}] $result
+} -cleanup {
+  cleanupDb $fileName
+
+  unset -nocomplain result code results errors sql dataSource id db fileName
+} -constraints \
+{eagle monoBug28 command.sql compile.DATA SQLite System.Data.SQLite} -match \
+regexp -result {^Ok System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 \{\}$}}
+
+###############################################################################
+
+runSQLiteTestEpilogue
+runTestEpilogue