c# - How to get current row textbox value on button click but NOT in code-behind

Question

Hi I have the following TextBox:

<asp:TemplateField HeaderText="Email">
  <EditItemTemplate>
      <asp:TextBox ID="txt_email" runat="server" Text='<%#Eval("usr_email") %>' class="custom-table-text"></asp:TextBox>
   </EditItemTemplate>
 </asp:TemplateField>

If I need to get Evaldb value I can simply do either:

<asp:LinkButton.... OnClientClick='<%# "ValidateEmail("" + Eval("usr_email") + ""); return false;" %>'
<asp:LinkButton.... OnClientClick='<%# "ValidateEmail("" + DataBinder.Eval(Container.DataItem, "usr_email") + ""); return false;" %>'

But how to get the value of current textbox (current row):

• inside LinkButton OnClientClick.
• before postback (client-sidewithout postback ot in code-behind).

Answer 1

I found it in case anyone finds it useful or has any comment:

OnClientClick='<%# String.Format("return ValidateEmail({0}.value)", (((GridViewRow)Container).FindControl("txt_email") as TextBox).ClientID) %>'