Gridview not changing to readonly mode

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ASP.NET

Hello friends,
I have Template Field in Grid, I paste the code below

<asp:TemplateField HeaderText="Action">
                       <itemtemplate>
                           <asp:LinkButton runat="server" ID="linkEdit" Text="Edit"  CommandName="Edit" CommandArgument='<%# Eval("conditionid") %>' > |
                           <asp:LinkButton ID="lnkDelete" runat="server" CommandName="Delete" CssClass="delbutton" CommandArgument='<%#Eval("conditionid") %>'>Delete
                       </itemtemplate>
                       <edititemtemplate>
                           <asp:LinkButton runat="server" ID="linkCancel" Text="Cancel"  CommandName="Cancel" CommandArgument='<%# Eval("conditionid") %>' >
                       </edititemtemplate>

In action column there are two links Edit | Delete

When edit link is clicked the grid goes to edit mode, I do editing of record through the controls which are outside the gird. The gird only contains Cancel link, to cancel editing.

When I click SaveEdit button, the data gets update but the Cancel is not getting replaced by Edit | Delete

May I know where I'm going wrong?

Thanks in advance