We can use two constructs to access page-level variables in an ASP.NET web template:
data binding syntax
Data binding—the hierarchical mapping of control properties to data container values—is specified by the <%# … %> tags. Code located within a
<%# … %>code block is only executed when the DataBind method of its parent controlcontainer is invoked.
code rendering syntax
The <%= … %> code tags output content to the browser. This content could
be hard-coded, or it may contain page-level variables.
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