SSIS脚本任务错误

Question

I'm trying to get this answer working in my package, but I get the below error message on the first line.

Cannot implicitly convert type 'object' to 'string'. An explicit conversion exists (are you missing a cast?)

I also get a warning saying "ex" is declared but never used.

Anyone know what I can do to fix this?

        string connString = Dts.Variables["User::SQLServer"].Value;

        try
        {
            using (OleDbConnection connection = new OleDbConnection())
            {
                connection.ConnectionString = connString;
                connection.Open();
            }
            Dts.Variables["User::DatabaseCanConnect"].Value = true;
        }
        catch (Exception ex)
        {
            Dts.Variables["User::DatabaseCanConnect"].Value = false;
        }

        Dts.TaskResult = (int)ScriptResults.Success;

Answer 1

string connString = Dts.Variables["User::SQLServer"].Value.ToString().Trim();

这就是我所需要的。