How to add namespace in aspx file?
Question
i have added C# code in aspx file, but it is showing error
The type or namespace name 'Mail' does not exist in the class or namespace 'System.Net' (are you missing an assembly reference?)
How i can add nampespace to aspx file i have tried <%@ import namespace="Westwind.Tools"%> but it does not work?
4 answers
solution1
96 ACCPTED 2010-03-03 08:19:41
<%@ Import Namespace="System.Net.Mail" %>
solution2
7 2010-03-03 08:39:50
I'm assuming that it's in a website and that the page doesn't have code behind?
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Net.Mail"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
System.Net.Mail.SmtpClient client = new SmtpClient();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
</body>
</html>
This seems to work for me.
If it's not in a website and/or it has code behind why do you need to reference the namespace in the aspx file?
Hope this helps
solution3
1 2022-11-25 19:50:07
You can import and create an optional alias for the namespace:
<%@ Import Namespace="SP=Microsoft.SharePoint.Client" %>
and then use the alias like:
<%= var spContext = new SP.ClientContext("someSharePointUrl"); %>
solution4
0 2019-07-09 15:24:52
To add the namespace globally instead of page-by-page, just put the namespace in your web.config.
<configuration>
<system.web>
<pages>
<namespaces>
<add namespace="Your.Namespace"/>
</namespaces>
</pages>
</system.web>
</configuration>
You might have to restart Visual Studio for the IntelliSense to kick in.
You can also create a mini web.config in a directory to only import the namespace into ASPX files within that directory and sub-directories instead of applying it globally.
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