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Answer 1

+1 A:

This is the master page's ID. I change it by adding a Page_Init to my masterpage which sets its id:

Private Sub InitSub(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
    ID = "master"
End Sub

This ID is normally empty/null so when it renders it it generates an id (starting at ct100 and going up)

Like @Scott Stafford said, keep it short because it prefixes every client id on your page.

I use words like "mBio", "mHome", etc..

Bob Fincheimer 2010-08-09 14:43:28

Thanks bob. It can also be set on Page_Load():protected void Page_Load(object sender, EventArgs e) { ID = "m"; }}

maxp 2010-08-09 14:46:20

Page Load might be a little late, I would be safe and do it in init (so that any custom controls have their client ids on their inits)

Bob Fincheimer 2010-08-09 14:47:43

Answer 2

A:

Why rename it? You can, as @Bob Fincheimer describes, but so what? Also, if you DO rename it, keep the new name short, because that name shows up in all generated HTML and all POSTing variables hundreds of times, possibly enough to actually affect performance of your site.

Scott Stafford 2010-08-09 14:45:15

Call me anal, but yes, i'm doing it for marginal performance gains (naming it 'm' instead of 'ct100')

maxp 2010-08-09 14:53:34

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What is ct100 and how do I rename it?

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