static DbConnection CreateDbConnection(string providerName, string connectionString)
{
DbConnection connection = null;
if (connectionString != null)
{
try
{
DbProviderFactory factory = DbProviderFactories.GetFactory(providerName);
connection = factory.CreateConnection();
connection.ConnectionString = connectionString;
}
catch (Exception ex)
{
if (connection != null)
{
connection = null;
}
}
}
return connection;
}
http://msdn.microsoft.com/ko-kr/library/dd0w4a2z%28v=vs.110%29.aspx
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