Question

我的网站主页上有一个GridView。我想隐藏第一列：

这是网格视图。

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" DataSourceID="SqlDataSource4" ForeColor="Black" GridLines="Vertical" Height="300px" Width="1265px" AllowPaging="True" AllowSorting="True">
            <AlternatingRowStyle BackColor="#CCCCCC" />
            <Columns>
                <asp:CommandField ShowSelectButton="True" SelectText="Add to Cart"></asp:CommandField>
                <asp:BoundField DataField="ID_CARTE" HeaderText="Id" SortExpression="ID_CARTE" HeaderStyle-CssClass="hide-th" ItemStyle-CssClass="hide-td" />
                <asp:BoundField DataField="Titlu" HeaderText="Titlu" SortExpression="Titlu" />
            </Columns>

这是登录页面代码。我必须隐藏该列，因为它包含一个在ShoppingCart中添加商品的按钮，并且我希望用户仅在登录后才能添加商品。

 Protected Sub LogIn(sender As Object, e As EventArgs)
        If IsValid Then
            ' Validate the user password
            Dim manager = Context.GetOwinContext().GetUserManager(Of ApplicationUserManager)()
            Dim signinManager = Context.GetOwinContext().GetUserManager(Of ApplicationSignInManager)()

            ' This doen't count login failures towards account lockout
            ' To enable password failures to trigger lockout, change to shouldLockout := True
            Dim result = signinManager.PasswordSignIn(Email.Text, Password.Text, RememberMe.Checked, shouldLockout := False)

            Select Case result
                Case SignInStatus.Success
                    If Request.QueryString("ReturnUrl") Is Nothing Then
                        IdentityHelper.RedirectToReturnUrl("/Carti", Response)
                    Else
                        IdentityHelper.RedirectToReturnUrl(Request.QueryString("ReturnUrl"), Response)
                    End If

Answer 1

从不可见的列开始。登录后，找到该列并将其设置为可见。基本上：

GridView.Columns[0].Visible = true;

如果需要，请在SO中搜索如何从代码隐藏中显示/隐藏列。

用户未登录时如何隐藏CommandField？ ASP.net VB

1 个答案: