Requiredfield验证程序不适用于下拉列表

问题描述

大家好，


requiredfieldvalidator不适用于asp.net的gridview控件的页脚模板中的dropdownlist

我的代码如下:

Hi all,


Requiredfieldvalidator is not working for dropdownlist which is present in footer tamplate of gridview control in asp.net

my code is as follows:

<FooterTemplate>
                            <asp:DropDownList ID="ddlcustomer" runat="server" AppendDataBoundItems="true" DataSource='<%#GetCustomer() %>'

                                DataTextField="CustomerName" DataValueField="CusVenID" ValidationGroup ="FtrowValidation">
                                <asp:ListItem Value="-1">-Select-</asp:ListItem>
                            </asp:DropDownList>
                           <asp:RequiredFieldValidator ID="reqfvCustomerName" runat="server" InitialValue="0" ControlToValidate="ddlcustomer"

                                 ValidationGroup="FtrowValidation" ErrorMessage="select Customer"

                                Display="Dynamic" Text ="*"></asp:RequiredFieldValidator>

                        </FooterTemplate>

请告诉我.

please advise me.

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