Discovering control with JavaScript within an ASP:Login element

On the page, there is a customized ASP Login control box that contains Username and Password textboxes.

I am trying to locate the Username and Password controls using a JavaScript function.

var Username= document.getElementById("<%=UserName.ClientID%>");

Unfortunately, this code does not compile and results in a compile time error:

UserName not found in this context.

If I use the client side id directly like this:

var username = document.getElementById("login_LoginUser_UserName");

It works fine, but I aim to dynamically find the client id instead of hardcoding it here.

Answer №1

The method I am aware of involves the following steps:

 var Username = document.getElementById("<%= Login1.FindControl("UserName").ClientID %>");
 var Password = document.getElementById("<%= Login1.FindControl("Password").ClientID %>");

This will retrieve the client Id of the elements within the Login control.

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