Question

我在表单上有一个GridView，即使Visible已在属性窗口中设置为True，也无法在浏览器中看到它。更重要的是，我有以下代码来使数据在GridView的列中可见，但似乎没有什么对我有用。如果有人可以帮助我，我会很高兴。

Sub showgrid()
     Try
         ds.Clear()
         ada = New SqlDataAdapter("Select SubjectCode'Subject Code',SubjectName'Subject Name',SubjectType'Subject Type',UserId'User Id',Password from ProgramDetails.Subjects", cn)
         ada.Fill(ds, "ProgramDetails.Subjects")
         cmd = New SqlCommand("Select SubjectCode'Subject Code',SubjectName'Subject Name',SubjectType'Subject Type',UserId'User Id',Password from ProgramDetails.Subjects", cn)
         ada.SelectCommand = cmd
         ada.Fill(ds)
         GridView1.DataSource = ds.Tables(0)
     Catch ex As Exception
     End Try
End Sub

Answer 1

好像你错过了DataBind()的{{1}}方法。

GridView

Answer 2

    Try
        ds.Clear()
        ada = New SqlDataAdapter("Select SubjectCode'Subject Code',SubjectName'Subject Name',SubjectType'Subject Type',UserId'User Id',Password from ProgramDetails.Subjects", cn)
        ada.Fill(ds, "ProgramDetails.Subjects")
        cmd = New SqlCommand("Select SubjectCode'Subject Code',SubjectName'Subject Name',SubjectType'Subject Type',UserId'User Id',Password from ProgramDetails.Subjects", cn)
        ada.SelectCommand = cmd
        ada.Fill(ds)
        GridView1.DataSource = ds.Tables(0)
        GridView1.DataBind()'binds the datasource to the GridView
    Catch ex As Exception
    End Try

如何在VB.Net中使GridView可见

2 个答案: