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Public Class mytext
Inherits TextBox
Public Property a() As enum_a
Get
Return Me.v_a
End Get
Set(ByVal value As enum_a)
Me.v_a = value
End Set
End Property
Public Enum enum_a
a1 = 0
a2 = 1
a3 = 2
a4 = 3
End Enum
Private v_a As enum_a
End Class
[DefaultProperty("Text")]
[ToolboxData("<{0}:ServerControl1 runat=server></{0}:ServerControl1>")]
public class ServerControl1 : TextBox
{
public string A
{
get
{
String s = (String)ViewState["a"];
return ((s == null) ? "" : s);
}
set
{
ViewState["a"] = value;
}
}
//....
}