Gets or sets the filter value of an implicit resource key.
Assembly: System.Web (in System.Web.dll)
The property refers to the value before the colon (:) in an expression. For example, suppose you had an implicit resource in the following form:
<asp:label runat="server" id="label1" meta:resourcekey="Welcome" text="Welcome" ie:text="Welcome Internet Explorer User" forecolor="blue"/>
This resource contains three keys that potentially have localized resource values to retrieve from the resource file or source code. One of these keys is Ie:Welcome.Text, in which "Ie" is the value.