Question

如何刷新下拉列表GridView中的onSelectIndexChange？我希望在每次索引更改时刷新或清除网格当ddlist.selectvalue=0然后弹出一个说Please select valid option，然后网格隐藏。

我正在使用此代码：

 Protected Sub ddllist_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddllist.SelectedIndexChanged
        If ddllist.SelectedValue = 1 Then

            tdtype.InnerHtml = "Leas ID"
            btnSave.Enabled = True
            trtype.Visible = True

        ElseIf (ddllist.SelectedValue = 0) Then
            btnSave.Enabled = False
            trtype.Visible = False
            ' Gridconten.DataSource = ""
            'Gridconten.DataBind()
            'Page_Load(sender, e)
            Gridconten.DataSource = Nothing
            Gridconten.DataBind()

        Else
            btnSave.Enabled = True
            tdtype.InnerHtml = "Vendor ID"
            trtype.Visible = True
        End If
    End Sub

Answer 1

好吧，经过一番尝试，我得到了它，我正在使用它！基本上我是绑定它没有数据和隐藏索引上的网格变化

 Protected Sub ddllist_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddllist.SelectedIndexChanged
        If ddllist.SelectedValue = 1 Then
            Label2.Text = ""
            tdtype.InnerHtml = "Leas ID"
            btnSave.Enabled = True
            trtype.Visible = True
            Gridconten.DataSource = Nothing
            Gridconten.DataBind()
            Gridconten.Visible = False
            Gridconten.Columns(0).HeaderText = "Lease ID"

        ElseIf (ddllist.SelectedValue = 0) Then
            btnSave.Enabled = False
            trtype.Visible = False
            Label2.Text = ""
            ' Gridconten.DataSource = ""
            'Gridconten.DataBind()
            'Page_Load(sender, e)
            Gridconten.DataSource = Nothing
            Gridconten.DataBind()

            Gridconten.Visible = False

        Else
            Label2.Text = ""
            btnSave.Enabled = True
            tdtype.InnerHtml = "Vendor ID"
            trtype.Visible = True
            Gridconten.DataSource = Nothing  
            Gridconten.DataBind()            
            Gridconten.Visible = False
            Gridconten.Columns(0).HeaderText = "Vendor ID"
        End If
    End Sub

如何在下拉列表的onSelectedIndexChanged（）中刷新GridView？

1 个答案: