C# - Get Custom Attribute from Control

I have the below code.  While I'm looping through the controls on the code behind how do I get the value of the custom attribute "CustAttribute"?

<asp:textbox id="txtPlace" runat="server" CustAttribute="Enable">

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You need this:

string customAttrData = txtPlace.Attributes["CustAttribute"].ToString();

You need to note that Custom Attribues do not get forwarded to the server.

so you need to use the viewstate to preserve them.

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