Why information about lock appears so late, after 5-6 seconds?

I have simple application which have two buttons. First button create transaction and hold it for 30 seconds before commit it.

Second button execute method where I tried to update the same record.

My point is to get information about locked record but exception is throwed after 5-6 seconds.

In PROGRESS, information about lock appears instantly.

How Can I achieve a similar efficiency in C#?

private void button1_Click(object sender, RoutedEventArgs e)
{
Task.Run( () =>
{
using (OdbcConnection con = new OdbcConnection("DSN=myDSN;UID=root;PWD=qweasd"))
{
OdbcCommand command = new OdbcCommand();
OdbcTransaction transaction = null;

command.Connection = con;

try
{
con.Open();

while (con.State != ConnectionState.Open)
{
Thread.Sleep(10);
}

transaction = con.BeginTransaction();

command.Connection = con;
command.Transaction = transaction;

command.CommandText = " UPDATE pub.ad_mstr SET ad_line1 = 'button3' where ad_mstr.ad_addr = 'abcdefgh' ";

command.CommandTimeout = 1;
command.ExecuteNonQuery();

for (int i = 0; i < 30; i++)
{
Thread.Sleep(1000);
}


transaction.Commit();

}
catch (Exception exc)
{
try
{
transaction.Rollback();
}
catch
{

}
}

}
//_startedTransaction1 = true;
}); /* Task.Run ( () => */
}

private void button2_Click(object sender, RoutedEventArgs e)
{
if (!_startedTransaction1)
{
Task.Run(() =>
{
using (OdbcConnection con = new OdbcConnection("DSN=myDSN;UID=root;PWD=qweasd"))
{
OdbcCommand command = new OdbcCommand();
OdbcTransaction transaction = null;

command.Connection = con;

try
{
con.Open();
while (con.State != ConnectionState.Open)
{
Thread.Sleep(10);
}

transaction = con.BeginTransaction();

command.Connection = con;
command.Transaction = transaction;

command.CommandText = " UPDATE pub.ad_mstr SET ad_name = 'button1' where ad_mstr.ad_addr = 'abcdefgh' ";

command.ExecuteNonQuery();

transaction.Commit();

}
catch (Exception exc)
{
try
{
transaction.Rollback();
}
catch
{

}
}

//_startedTransaction1 = true;
}
});
}
else
{
//_startedTransaction1 = false;
}

}


I want to add that my 'myDSN' is with COMMITED isolation level. Exception which appears after 5-6 seconds is :

"System.Collections.ListDictionaryInternal pgoe1023.dll ERROR [HY000] [DataDirect][ODBC Progress OpenEdge Wire Protocol driver][OPENEDGE]Failure getting record lock on a record from table PUB.ad_mstr."

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