Validator in gridview

[dotNetDummi]

Hi experts,

I need a validator in my gridview.
When the user update a field in the gridview, I need to check if the email is valid.
How can I do that?

Below is my gridview.
Please help. Thanks!

<asp:GridView ID="gv_retrieve" runat="server" AutoGenerateColumns="False" CellPadding="3"
        ForeColor="Black" GridLines="Vertical" Width="751px" OnRowEditing="gv_retrieve_RowEditing" 
        OnRowUpdating="gv_retrieve_RowUpdating" onRowCancelingEdit = "gv_retrieve_RowCancelingEdit" 
        OnRowDeleting = "gv_retrieve_RowDeleting" OnRowDataBound = "gv_retrieve_RowDataBound"
        BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" Font-Bold="False">
        <FooterStyle BackColor="#CCCCCC" />
 
        <Columns>
 
            <asp:BoundField DataField="Name" HeaderText="Name" />
            <asp:BoundField DataField="Designation" HeaderText="Designation" />
            <asp:BoundField DataField="Email" HeaderText="Email Address" />
            <asp:BoundField DataField="WatcherEmail" HeaderText="Watcher Email" />
            <asp:CommandField ShowEditButton="True" >
                <ItemStyle Width="35px" />
            </asp:CommandField>
            <asp:CommandField ShowDeleteButton="True" />
            <asp:BoundField DataField="apid">
                <ItemStyle CssClass="hiddencol" />
            </asp:BoundField>
        </Columns>
        <EmptyDataTemplate>
            <table width="100%">
                <tr style="font-weight:bold; text-decoration:underline" align="center">
                    <td>
                        Name
                    </td>
                    <td>
                        Designation
                    </td>
                    <td>
                        Email
                    </td>
                    <td>
                        WatcherEmail
                    </td>
                </tr>                                                                                  
            </table>                        
             <br />
        </EmptyDataTemplate>
        <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
        <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
        <AlternatingRowStyle BackColor="#CCCCCC" />
    </asp:GridView>

[Usharva]

Hi,

sorry i dint understand your code, but i understood your problem. you can just try the below code

<asp:GridView runat="server" ID="gvMaster" AutoGenerateColumns="False" HorizontalAlign="Left"
CellPadding="0" ForeColor="#333333" Font-Size="8pt" BorderStyle="Groove"
AllowPaging="True" PageSize="12" DataKeyNames="item_code" Font-Names="Tahoma"
Font-Underline="False" Width="80%" ShowFooter="True">
<columns>

<asp:TemplateField HeaderText="Email">
<EditItemTemplate>
<asp:TextBox ID="gvEEmail" runat="server" Width="60px"></asp:TextBox>
<asp:RegularExpressionValidator ID="regvEmail" runat="Server" ControlToValidate="gvEEmail" Display="dynamic"
SetFocusOnError="true" Font-Names="Tahoma" ValidationExpression="^[\w-\.]+@([\w-]+\.){1,2}[\w-]{2,4}$"
Font-Size="8pt">Enter proper mail id</asp:RegularExpressionValidator>
</EditItemTemplate>
</columns>

</gridview>

you can do the same for Footertemplate