HOW TO ADD WEB.CONFIG FILE IN ASP.NET ?
This is the basic structure of web.config file .
<?xml version="1.0"?>
<configuration>
<appSettings></appSettings>
<connectionStrings> </connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
</configuration>
APPSETTINGS
<appSettings>
<add key="name" value="abc@domain.com" />
<add key="password" value="password" />
</appSettings>
CONNECTION STRING
<connectionStrings>
<add name="con1"
connectionString="Server=servername;Database=databasename;Integrated Security=true;" />
</connectionStrings>
SYSTEM.WEB
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
Custom Error :
<customErrors mode="RemoteOnly" defaultRedirect="ErrorPage.aspx">
<error statusCode="403" redirect="default.htm" />
<error statusCode="404" redirect="defaultPage.aspx" />
</customErrors>