vb.net 错误 -->Fill: SelectCommand.Connection 属性尚未初始化
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时间：2020-09-17 15:10:17 来源:igfitidea点击:
vb.net error -->Fill: SelectCommand.Connection property has not been initialized
提问by jerahmeel
Me.SqlConnection1.ConnectionString = dbconn.ConnectionString
Me.SqlDataAdapter1.SelectCommand.CommandText = "Select * From repSMI where Date Between '" & formSMI.DateTimePicker1.Value & "' and '" & formSMI.DateTimePicker2.Value & "'"
Dim DsetSMI1 As New DataSet
Me.DsetSMI1.Clear()
Me.SqlDataAdapter1.Fill(Me.DsetSMI1, "repSMI")
Dim x As New repSMI
x.SetDataSource(Me.DsetSMI1)
Me.CrystalReportViewer1.ReportSource = x
Me.CrystalReportViewer1.Refresh()
what would be the possible fix for this? thanks!
可能的解决方法是什么？谢谢！
采纳答案by Yuriy Galanter
You're not opening your connection. And not assigning it to your command. Try adding
你没有打开你的连接。而不是将其分配给您的命令。尝试添加
Me.SqlDataAdapter1.SelectCommand.Connection = Me.SqlConnection1
Me.SqlConnection1.Open();
after
后
Me.SqlConnection1.ConnectionString = dbconn.ConnectionString
Don't forget to close it after DataSet is filled.
不要忘记在DataSet 填满后关闭它。
