Windows窗体（C＃）：DataGridView的System.IndexOutOfRangeException

Question

我收到错误当我从数据表中删除记录，唯一的例外是下面

> System.IndexOutOfRangeException: Index 10 does not have a value. at 
> System.Windows.Forms.CurrencyManager.get_Item(Int32 index) at 
> System.Windows.Forms.DataGridView.DataGridViewDataConnection.GetError(Int32 
> rowIndex) 

我使用的DataTable填充数据和BindingSource的绑定的DataGridView，当我在那个时候异常发生上述删除数据表中的行记录，下面是我的代码

DataTable journeyDataTable = new DataTable(); 
private void ReceivedMessage(object sender, MqttMsgPublishEventArgs e) 
     { 
      var journeyBindingSource = new BindingSource();         

      var result = System.Text.Encoding.UTF8.GetString(e.Message); 

      switch (e.Topic) 
      { 
       case MqttTokens.JourneyHeaderInfo: 
        title = "Journey Header Info"; 
        journeyDataTable.Rows.Add(new object[] { title, result }); 

        break; 
       case MqttTokens.JourneyDetail: 
        title = "Journey Detail Info"; 
        journeyDataTable.Rows.Add(new object[] { title, result }); 
        break; 
       case MqttTokens.JourneyProgress: 
        title = "Journey Progress Info"; 
        journeyDataTable.Rows.Add(new object[] { title, result }); 
        break; 
       default: 
        break; 
      } 

      //Add LogDetail 
      infoLogger.Info(title + result); 

      if (journeyDataTable.Rows.Count > 0) 
      { 
       journeyBindingSource.DataSource = journeyDataTable; 

       this.Invoke((MethodInvoker)delegate() 
       { 
        grdJourneyInformation.DataSource = journeyBindingSource; 
       }); 
      } 

      if (journeyDataTable.Rows.Count > 10) 
      { 
       var dataTableRow = journeyDataTable.Rows.Cast<DataRow>().Reverse().Skip(10); 
       if (dataTableRow.FirstOrDefault() != null) 
        dataTableRow.FirstOrDefault().Delete(); 
       } 
     } 

我试着用的CurrencyManager referecing，在线程中删除数据等。但同样的例外是发生

请帮

谢谢

Answer 1

该指数是基于0，所以如果你在里面if (journeyDataTable.Rows.Count > 10)，那么它将永远不等于10（或9为此事... 0通过8 ）。