我总是遇到这个问题,但查询在我的工作台中正常工作。我的代码哪里可能有错?
Dim sqlcmd1 As New MySqlCommand("SELECT * FROM attendance_master", conn)
Dim dr1 As MySqlDataReader
dr1 = sqlcmd1.ExecuteReader
If dr1.HasRows Then
While dr1.Read
Dim newitem As New ListViewItem()
newitem.Text = dr1.Item("Personnel_id").ToString
newitem.SubItems.Add(dr1.Item("in_time").ToString)
newitem.SubItems.Add(dr1.Item("out_time").ToString)
LvCompare.Items.Add(newitem)
End While
End If
最佳答案
删除所有空格:
myString = myString.Replace("", "")
删除前导和尾随空格:
myString = myString.Trim()
关于mysql - fatal error : attempting to read the result set,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58535080/