Question

I’m working with a table of asp.net controls on client side. They are all named in the following fashion when they are created on server side: “txt_name_” + rowNum. I know I can access them by their id by using “<%=Control.ClientID%>”. On client side I have access to current row num via a javascript variable. I’m wondering how I can access one of the controls on client side by using something like the following(which doesn’t seem to work): “<%=txt_name_” + jsRowNumVar + “.ClientID%>”. so I’m essentially trying to substitute a javascript variable as part of an asp.net control name and it doesn’t seem to be working. Any ideas on how I would accomplish this?

Answer 1

As an alternative, you can render your rows’ client ids with an javascript array, and you can use it with the row index.

string jsToRender = "<script>var myCtrlIds = new Array('" + 
         text0.ClientId + "', '" + 
         text1.ClientId + "', '" + 
         text2.ClientId + "');</script>";
Page.ClientScript.RegisterStartupScript(typeof(MyPage), "jsKey", jsToRender);

Then use the control id array in your client scripts :

<script>
      var text0Value = document.getElementById(myCtrlIds[0]).value;
</script>