I am having HyperLink in Gridview, On Hyperlink Click, I am opening new aspx form. Hyperlink Text is Dates,I want to Apply validation. I want that if the hyperlink Text is MAX Date only then the new form will open, else new form will not open. How to do dat??
Code:
<asp:TemplateField HeaderText="Eff Date" SortExpression="EFF_DATE" HeaderStyle-CssClass="GridHeaderStyle">
<ItemTemplate>

             <asp:HyperLink ID="HyperLinkEff_Date" runat="server" NavigateUrl='<%# "Rate Master Popup ML.aspx?Rate_ID=" + DataBinder.Eval(Container.DataItem,"RATE_ID") + "&Operation=Edit" + "&Eff_Date=" + DataBinder.Eval(Container.DataItem,"EFF_DATE")%>'
             Text='<%# Eval("EFF_DATE","{0:dd/MM/yyyy}") %>'   ></asp:HyperLink>