Question

我整个上午都在谷歌搜索和Binging试图找到这个答案。

我有一个使用字符串构建器绑定到我的SQL数据库的DataGridView。我的表单上有一个更新按钮，用户单击以将其新更改提交到数据库。但是，有时候，我忘了按＆＃34; Enter＆＃34;激活告诉datagridview的事件，数据表上有新的更改。 有没有办法不必按Enter键来识别更改？也许在cellvalidating事件中？

Answer 1

您可以获取输入字符串（在按Enter键之前）。

     Error in h2o.init() : H2O failed to start, stopping execution.
      In addition: Warning message:
     running command 'curl 'http://localhost:54321'' had status 127 

    Note:  In case of errors look at the following log files:

    java version "9.0.1"
    Java(TM) SE Runtime Environment (build 9.0.1+11)
    Java HotSpot(TM) 64-Bit Server VM (build 9.0.1+11, mixed mode)

   Starting H2O JVM and connecting: 
  ............................................................ 
   [1] "localhost"
   [1] 54321
   [1] TRUE
   [1] -1
   [1] "Failed to connect to localhost port 54321: Connection refused"
   [1] 127

无需按Enter即可捕获表更改（DataGridView）

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