Parameter discovery is not supported for connections using GenericDatabase

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I am using enterprise library for mysql and asp.net. I'm getting this error:

"Parameter discovery is not supported for connections using GenericDatabase. You must specify the parameters explicitly, or configure the connection to use a type deriving from Database that supports parameter discovery."

public DataSet GetDataSet(string storedProcName, object[] values)
{
  // DataSet that will hold the returned results		
  DataSet _ds = null;
  try
  {
    // call the method to get the dataset from DB 
     _connection.Open();
    Object[] param = new Object[values.Length];
    for (int i = 0; i < values.Length; i++)
    {
      param[i] = values[i];
    }

    _ds = _db.ExecuteDataSet(storedProcName, param);// here it gives exception
    _connection.Close();
}

Please help me.

Posted 25-Nov-10 19:03pm

88Rocker

Updated 25-Nov-10 19:17pm

v3

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JF2015 26-Nov-10 1:11am

Edited to correct grammar, spelling and code formatting.

88Rocker 26-Nov-10 1:14am

any one??? please reply ASAP...

JF2015 26-Nov-10 1:26am

ok, please be a bit more patient - you don't really believe you will get an answer to your question in 15min, do you?

2 solutions

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saini arun · Answer 1 · 2010-11-25T19:55:00

Solution 1

This may help you.

http://entlib.codeplex.com/Thread/View.aspx?ThreadId=74786[^]

Posted 25-Nov-10 19:55pm

saini arun

Comments

88Rocker 26-Nov-10 2:52am

not much useful, but i solve it.

Dalek Dave 26-Nov-10 3:50am

Not what he needed, but a good link.

88Rocker · Answer 2 · 2010-11-25T20:52:00

i solved it did some other tweaks.

public DataSet GetDataSet(string storedProcName, string[] inParameters, object[] values)
       {
           // DataSet that will hold the returned results
           DataSet _ds = null;
           try
           {
               //Database db = DatabaseFactory.CreateDatabase();
               DbCommand dbCommand = _db.GetSqlStringCommand(storedProcName);
               dbCommand.CommandType = CommandType.StoredProcedure;
               // Create and add integer input parameter
               for (int index = 0; index < values.Length; index++)
               {
                   _db.AddInParameter(dbCommand, inParameters[index], GetDBType(values[index].GetType().ToString()), values[index]);
               }
               _ds = _db.ExecuteDataSet(dbCommand);
           }
           catch (Exception exDataSetExecution)
           {
               if (_connection.State == ConnectionState.Open)
                   _connection.Close();
               // exception occurs whule getting the dataset
               throw exDataSetExecution;
           }
           //returns the data set
           return _ds;
       }