SqlConnection 在 Dispose 之前要不要先 Close 呢?

最新推荐文章于 2022-07-13 08:35:14 发布

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SqlConnection 在 Dispose 之前要不要先 Close 呢?
我个人的习惯是会先叫 Close 再叫 Dispose

但 Dispose 真的不会先帮我 Close 吗?
今天索性来反组译一下~

.methodfamilyhidebysigvirtualinstancevoid Dispose(bool disposing) cil managed
{
.maxstack 2
.localsinit ([0] System.Data.ConnectionState state1)
      L_0000: ldarg.1 
      L_0001: brfalse.s L_0027
      L_0003: ldarg.0 
      L_0004: ldfld System.Data.ConnectionStateSystem.Data.SqlClient.SqlConnection::_objectState
      L_0009: stloc.0 
      L_000a: ldloc.0 
      L_000b: switch (L_0020, L_001a)
      L_0018: br.s L_0020
      L_001a: ldarg.0 
      L_001b: call instancevoidSystem.Data.SqlClient.SqlConnection::Close()
      L_0020: ldarg.0 
      L_0021: ldnull 
      L_0022: stfld System.Data.SqlClient.SqlConnectionStringSystem.Data.SqlClient.SqlConnection::_constr
      L_0027: ldarg.0 
      L_0028: ldarg.1 
      L_0029: call instancevoid [System]System.ComponentModel.Component::Dispose(bool)
      L_002e: ret 
}