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<% @Page Language="C#" %>
<!-- code section -->
<script runat="server">
private void test1(object sender, EventArgs e)
{
int x = 10;
int[] numbers = {5, 10, 15, 20};
if (numbers.Contains(x))
{
changed_text.InnerHtml = "contains";
} 
}
</script>
<html>
<head>
</head>
<body>
<form runat="server">
<input runat="server" id="button1" type="submit" value="Click" OnServerClick="test1"/>
<hr />
<h3> Results: </h3>
<span runat="server" id="changed_text" />
</form>
</body>
</html> 
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