Question

I am creating Windows Application and using System.Data.SqlClient.SqlConnection object

 SqlConnection targetDatabaseConnection = new SqlConnection(ConnectionString);

Following is the connection string

Data Source=.;Initial Catalog=TestBCP_12;User ID=sa;Password=sa;Min Pool Size=100; Max Pool Size=100; Decr Pool Size=100; Incr Pool Size=100;

Getting error with the following two settings

 Decr Pool Size=100; Incr Pool Size=100;

I know all the sizes are 100 , is it the cause of exception if yes? , the message is not reverent to the error .

I read the following article and implemented based on it
http://www.codeproject.com/Articles/17768/ADO-NET-Connection-Pooling-at-a-Glance

Found the answer that this is not possible in SQL directly so asked new question
How to achieve functionlity i.e. controlling "Incr Pool Size" or "Decr Pool Size" while establishing connection to SQL? similar to ORACLE
to find other possible ways to achieve it.

Answer 1

Since you are using SqlConnection, it does not support Decr Pool Size or Incr Pool Size. This property is supported with OracleConnection

You may check this article: Connection Pooling in DotNet

From the article:

You should refer to the documentation if you’re using a .NET Data
Provider other than SQL Server. Other data providers may have more
pooling options. A good example is the Oracle Data Provider, which
offers two options — Decr Pool Size and Incr Pool Size — for
controlling how a connection pool may shrink or grow.