public partial class _2 : Migration { protected override void Up(MigrationBuilder migrationBuilder) { migrationBuilder.UpdateData(table: "Table", keyColumn: "Id ...

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看msdn说updatedate好像是调用dodataexchange(),但是我不知道具体怎么样更新数据，高手能举个具体的例子吗？ 因为我把UpdateData()注释以后好像程序没有变化。