Question

这里是我的代码：

<asp:GridView ID="_gvPLCs" runat="server" AutoGenerateColumns="False" 
                                BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" 
                                CellPadding="4" DataSourceID="_dsPLCs" ForeColor="Black" GridLines="Horizontal" 
                                onrowcommand="_gvPLCs_RowCommand" onrowdatabound="_gvPLCs_RowDataBound">
                                <Columns>
                                    <asp:TemplateField ShowHeader="False">
                                        <ItemTemplate>
                                            <asp:LinkButton ID="lbnView" runat="server" CausesValidation="false" 
                                                CommandName="view" Text="View manual"></asp:LinkButton>
                                        </ItemTemplate>
                                    </asp:TemplateField>
                                    <asp:TemplateField HeaderText="PLCName" SortExpression="PLCName">
                                        <ItemTemplate>
                                            <asp:Label ID="Label1" runat="server" Text='<%# Bind("PLCName") %>'></asp:Label>
                                        </ItemTemplate>
                                        <EditItemTemplate>
                                            <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("PLCName") %>'></asp:TextBox>
                                        </EditItemTemplate>
                                    </asp:TemplateField>
                                    <asp:TemplateField HeaderText="PLCManual" SortExpression="PLCManual">
                                        <ItemTemplate>
                                            <asp:Label ID="Label2" runat="server" Text='<%# Bind("PLCManual") %>'></asp:Label>
                                        </ItemTemplate>
                                        <EditItemTemplate>
                                            <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("PLCManual") %>'></asp:TextBox>
                                        </EditItemTemplate>
                                    </asp:TemplateField>
                                    <asp:TemplateField HeaderText="LabName" SortExpression="LabName">
                                        <ItemTemplate>
                                            <asp:Label ID="Label3" runat="server" Text='<%# Bind("LabName") %>'></asp:Label>
                                        </ItemTemplate>
                                        <EditItemTemplate>
                                            <asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("LabName") %>'></asp:TextBox>
                                        </EditItemTemplate>
                                    </asp:TemplateField>
                                    <asp:TemplateField HeaderText="MachineName" SortExpression="MachineName">
                                        <ItemTemplate>
                                            <asp:Label ID="Label4" runat="server" Text='<%# Bind("MachineName") %>'></asp:Label>
                                        </ItemTemplate>
                                        <EditItemTemplate>
                                            <asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("MachineName") %>'></asp:TextBox>
                                        </EditItemTemplate>
                                    </asp:TemplateField>
                                    <asp:TemplateField HeaderText="MaxAllowedToResDay" 
                                        SortExpression="MaxAllowedToResDay">
                                        <ItemTemplate>
                                            <asp:Label ID="Label5" runat="server" Text='<%# Bind("MaxAllowedToResDay") %>'></asp:Label>
                                        </ItemTemplate>
                                        <EditItemTemplate>
                                            <asp:TextBox ID="TextBox5" runat="server" 
                                                Text='<%# Bind("MaxAllowedToResDay") %>'></asp:TextBox>
                                        </EditItemTemplate>
                                    </asp:TemplateField>
                                </Columns>
                                <FooterStyle BackColor="#CCCC99" ForeColor="Black" />
                                <PagerStyle BackColor="White" ForeColor="Black" HorizontalAlign="Right" />
                                <SelectedRowStyle BackColor="#CC3333" Font-Bold="True" ForeColor="White" />
                                <HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" />
                            </asp:GridView>

代码背后的代码：

    protected void _gvPLCs_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType != DataControlRowType.DataRow)
        return;
    if (e.Row.Cells[2].Text == "&nbsp;")
    {
        LinkButton lbnview = (LinkButton)e.Row.FindControl("lbnView");
        lbnview.Visible = false;
    }
}

这对我不起..plz help

我需要的是：当没有手册时;查看手册链接消失

我使用此代码测试了它：

  if (e.Row.Cells[2].Text == string.Empty)
    {
        LinkButton lbnview = (LinkButton)e.Row.FindControl("lbnView");
        lbnview.Visible = false;
    }

但它总是给我“”并且总是manaul字段消失

Answer 1

试试这个：

<asp:LinkButton ID="lbnView" runat="server" CausesValidation="false" CommandName="view" Text="View manual" Visible='<%# !string.IsNullOrEmpty(Bind("PLCName").ToString()) %>'></asp:LinkButton>

ASP.NET如何基于GridView中的另一个模板字段值隐藏模板字段控件

1 个答案: