Solved

Check is datareader has rows in .net 2.0 c#

Posted on 2007-04-02
3
1,655 Views
Last Modified: 2013-11-07
       public static CustomerListGetList()
        {
            CustomerList tempList = null;
            Database db = DatabaseFactory.CreateDatabase();
            DbCommand dbCommand = db.GetSqlStringCommand("spTest");
            dbCommand.CommandType = CommandType.StoredProcedure;

            using (IDataReader dataReader = db.ExecuteReader(dbCommand))
            {  
                  //how can i check if the datareader has rows here?

                tempList = new CustomerList();
                while (dataReader.Read())
                {
                    tempList.Add(FillDataRecord(dataReader));
                }                
                dataReader.Close();
            }
            return tempList;
        }
0
Comment
Question by:mugsey
  • 2
3 Comments
 
LVL 142

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 18837716
using (IDataReader dataReader = db.ExecuteReader(dbCommand))
            {  
                  //how can i check if the datareader has rows here?
                 if (dataReader.HasRows())
 . ...

0
 

Author Comment

by:mugsey
ID: 18838508
it does not have an option for this
0
 
LVL 142

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 18838993
I see, you used the DataFactory's that returns a IDataReader that does not expose that property


 public static CustomerListGetList()
        {
            CustomerList tempList = null;
            int intRows = 0;

            Database db = DatabaseFactory.CreateDatabase();
            DbCommand dbCommand = db.GetSqlStringCommand("spTest");
            dbCommand.CommandType = CommandType.StoredProcedure;

            using (IDataReader dataReader = db.ExecuteReader(dbCommand))
            {  
                tempList = new CustomerList();

                while (dataReader.Read())
                {
                    intRows ++;
                    tempList.Add(FillDataRecord(dataReader));
                }                
                dataReader.Close();
            }

            //check if the datareader has had rows here?
            if (intRows == 0)
            { // had no rows ... }

            return tempList;
        }
Authored by: mugsey
0

Featured Post

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

For a while now I'v been searching for a circular progress control, much like the one you get when first starting your Silverlight application. I found a couple that were written in WPF and there were a few written in Silverlight, but all appeared o…
Whether you've completed a degree in computer sciences or you're a self-taught programmer, writing your first lines of code in the real world is always a challenge. Here are some of the most common pitfalls for new programmers.
The viewer will learn how to use and create keystrokes in Netbeans IDE 8.0 for Windows.
The viewer will learn how to synchronize PHP projects with a remote server in NetBeans IDE 8.0 for Windows.

785 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question