hi friends
i am new in this blog.i made one windows application in vb.net and made a installer file.i used sql express for databse.when i installed the application on client system and try to login database failure (error 26).and when i installed sql express on client system than its working.can anybody tell me its compulsory to installed sql express on client system.if no than what i can do.
my connection string is:
<add name="constr"
connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\websoft1.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />