SqlDataAdapter.Fill上的System.EntryPointNotFoundException方法

我们正在同时开发Android和iPhone应用程序，并在它们之间共享核心代码（用C＃编写）。例如，SQLite数据库初始化代码在两个应用程序中都相同，仅适用于每个平台上的文件结构。下面的代码是工作在MonoTouch的，但将引发在单声道的Android EntryPointNotFoundException：SqlDataAdapter.Fill上的System.EntryPointNotFoundException方法

try 
{ 
    System.Data.Common.DbDataAdapter adapter = new SqliteDataAdapter(selectCommand); 
    retVal = adapter.Fill(dataSet); 
} 
catch (Exception exception) 
{ 
    ... 
}

据我所知，所述的SelectCommand和数据集的对象是相同的这两个平台的消息和堆栈跟踪上如下：

> System.EntryPointNotFoundException: sqlite3_column_origin_name at (wrapper managed-to-native) Mono.Data.Sqlite.UnsafeNativeMethods:sqlite3_column_origin_name (intptr,int) 
    at Mono.Data.Sqlite.SQLite3.ColumnOriginalName (Mono.Data.Sqlite.SqliteStatement stmt, Int32 index) [0x00000] in /home/jon/Development/xamarin/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLite3.cs:493 
    at Mono.Data.Sqlite.SqliteDataReader.GetSchemaTable (Boolean wantUniqueInfo, Boolean wantDefaultValue) [0x0042d] in /home/jon/Development/xamarin/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteDa>taReader.cs:619 
    at Mono.Data.Sqlite.SqliteDataReader.GetSchemaTable() [0x00000] in /home/jon/Development/xamarin/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteDataReader.cs:550 
    at System.Data.Common.DataAdapter.BuildSchema (IDataReader reader, System.Data.DataTable table, SchemaType schemaType, MissingSchemaAction missingSchAction, MissingMappingAction missingMapAction, System.Data.Common.DataTableMappingCollection dtMapping) [0x0003b] in /home/jon/Development/xamarin/mono/mcs/class/System.Data/System.Data.Common/DataAdapter.cs:284 
    at System.Data.Common.DataAdapter.BuildSchema (IDataReader reader, System.Data.DataTable table, SchemaType schemaType) [0x00000] in /home/jon/Development/xamarin/mono/mcs/class/System.Data/System.Data.Common/DataAdapter.cs:257 
    at System.Data.Common.DataAdapter.FillTable (System.Data.DataTable dataTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords, System.Int32& counter) [0x00011] in /home/jon/Development/xamarin/mono/mcs/class/System.Data/System.Data.Common/DataAdapter.cs:428 
    at System.Data.Common.DataAdapter.FillInternal (System.Data.DataSet dataSet, System.String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) [0x0009b] in /home/jon/Development/xamarin/mono/mcs/class/System.Data/System.Data.Common/DataAdapter.cs:533 
    at System.Data.Common.DataAdapter.Fill (System.Data.DataSet dataSet, System.String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) [0x00000] in /home/jon/Development/xamarin/mono/mcs/class/System.Data/System.Data.Common/DataAdapter.cs:589 
    at System.Data.Common.DbDataAdapter.Fill (System.Data.DataSet dataSet, Int32 startRecord, Int32 maxRecords, System.String srcTable, IDbCommand command, CommandBehavior behavior) [0x0004e] in /home/jon/Development/xamarin/mono/mcs/class/System.Data/System.Data.Common/DbDataAdapter.cs:337 
    at System.Data.Common.DbDataAdapter.Fill (System.Data.DataSet dataSet) [0x00000] in /home/jon/Development/xamarin/mono/mcs/class/System.Data/System.Data.Common/DbDataAdapter.cs:265 
    at Core.Database.ServerCommunicate.FillDataSet (Core.Database.XCommand selectCommand, System.Data.DataSet& dataSet) [0x00013] in /Users/sstream6/sd/110/core/Asm/Db/Database/Server.cs:648

我已在两个平台上验证数据库已创建并建立了连接。有没有人遇到过类似的问题？

来源

2011-11-30 joates

不幸的是，Android的SQLite库不包含对sqlite3_column_origin_name（）方法的支持，因此依赖于它的Mono.Data.Sqlite的任何部分都将失败。据我所知，Xamarin有一个追踪here的bug来修改实现来解决这个限制，但是目前还没有时间框架。

来源

2011-11-30 17:16:11

谢谢格雷格！这就是我需要的。 – joates

SqlDataAdapter.Fill上的System.EntryPointNotFoundException方法

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