ConnectionClass.dll

CREATE A New Project select ClassLibrary name it  ConnectionClass.cs
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Change the Class1 to your class name say "Connections" as shown below

Save and Build to create Dll file

Where to find dll file ???

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add referance to ConnectionClass.dll

 ConnectionClass.Connections cs=new ConnectionClass.Connections();

Add connection String in web.config and always use  "conn"  for name

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ENJOY


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