- 增加 FreeSql.Provider.Sqlite 对 Xamarin 环境下的适配；

2025-06-18 20:08:15 +08:00 · 2019-11-07 12:22:01 +08:00
parent 5521d6d100
commit 8cc5a682da
7 changed files with 98 additions and 86 deletions
--- a/Providers/FreeSql.Provider.Sqlite/AdonetPortable.cs
+++ b/Providers/FreeSql.Provider.Sqlite/AdonetPortable.cs
@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Reflection;
+using System.Text;
+
+namespace FreeSql.Sqlite
+{
+    internal class AdonetPortable
+    {
+
+#if ns20
+        static bool _IsMicrosoft_Data_Sqlite;
+        static object _IsMicrosoft_Data_SqliteLock = new object();
+
+        static T PortableAction<T>(Func<T> systemCreate, Func<T> microsoftCreate)
+        {
+            if (_IsMicrosoft_Data_Sqlite == false)
+            {
+                try
+                {
+                    return systemCreate();
+                }
+                catch
+                {
+                    lock (_IsMicrosoft_Data_SqliteLock)
+                    {
+                        _IsMicrosoft_Data_Sqlite = true;
+                    }
+                }
+            }
+            return microsoftCreate();
+        }
+
+        public static DbConnection GetSqliteConnection(string connectionString) => PortableAction<DbConnection>(
+            () => new System.Data.SQLite.SQLiteConnection(connectionString), 
+            () => new Microsoft.Data.Sqlite.SqliteConnection(connectionString));
+  
+        public static DbCommand GetSqliteCommand() => PortableAction<DbCommand>(
+            () => new System.Data.SQLite.SQLiteCommand(),
+            () => new Microsoft.Data.Sqlite.SqliteCommand());
+
+        public static DbParameter GetSqliteParameter() => PortableAction<DbParameter>(
+            () => new System.Data.SQLite.SQLiteParameter(),
+            () => new Microsoft.Data.Sqlite.SqliteParameter());
+
+        public static bool IsSqliteException(Exception exception) => PortableAction<bool>(
+            () => exception is System.Data.SQLite.SQLiteException,
+            () => exception is Microsoft.Data.Sqlite.SqliteException);
+#else
+
+        public static DbConnection GetSqliteConnection(string connectionString) => new System.Data.SQLite.SQLiteConnection(connectionString);
+  
+        public static DbCommand GetSqliteCommand() => new System.Data.SQLite.SQLiteCommand();
+
+        public static DbParameter GetSqliteParameter() => new System.Data.SQLite.SQLiteParameter();
+
+        public static bool IsSqliteException(Exception exception) => exception is System.Data.SQLite.SQLiteException;
+#endif
+    }
+}