The functionality of ServerTags is not available when using OnClientClick

<asp:button runat="server" Text="Save as" OnClick="btnSave_click" 
OnClientClick="if(!Check('<% # tb.ClientID %>')) return false; return Object();" 
CausesValidation="false"></asp:button>

<asp:TextBox runat="server" ID="tb"></asp:TextBox>

It's been quite a challenge trying to get server tags to work in this scenario. I've spent a good 1-2 hours exploring different approaches, but nothing seems to be working.

Server tags can be used in:

<OnClientClick="JSFunc();"

<script type="text/javascript">
    function JSFunc()
    {
         var el = document.getElementById('<% # tb.ClientID %>');
         //some actions with el here
    }
</script>

or in some other cases using C#.

Is there really no way to make server tags work inline? (like in the first example)

PS. Please excuse any errors in my English

Answer №1

To start with, make sure to include the "=" sign in your JavaScript code like this:

<%= tb.ClientID %>

Additionally, remember to invoke the DataBind() method in your page_load event if you want to execute it inline.

Answer №2

With the use of an expression builder, there is no need to manually call databind as you can easily inline the code.

For more information, check out this resource

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