No Returned data on SQLDataReader

I keep getting 'Invalid attempt to read when data is present' at line retObj.DatabaseID = DR.GetString(0)
I checked the connection str: works fine
I checked the SQL str: work fine
VB Code:
Public Class NetDatabase    ...'properties hidden            
Public Function GetDetails(ByVal DatabaseID As String) As NetDatabase              
Dim retObj As New NetDatabase              
Dim DR As SqlDataReader              
Dim dataAcc As New DataAccess             
 Try                  
DR = dataAcc.GetData("SELECT * FROM [database] where DatabaseID ='" & DatabaseID & "'")                   
 retObj.DatabaseID = DR.GetString(0)                 
 retObj.DatabaseName = DR.GetString(1)                 
 retObj.Domestic = DR.GetString(2)                 
 retObj.Connectionstring = DR.GetString(3)                   
 Return retObj              
Catch ex As Exception                 
 MsgBox(ex.ToString)             
 End Try         
 End Function        
End Class        
 
Private Class DataAccess                    
Dim mConnectionString As String = "SERVER=192.168.0.1;DATABASE=DEV_NETUSERDB;UID=sa;PWD=pwd;"          
Private ReadOnly Property ConnectionString() As String              
Get                  
Return mConnectionString              
End Get          
End Property     
       
Public Function GetData(ByVal SQLstr As String) As SqlDataReader              
Dim sqlDR As SqlDataReader              
Dim DA As New DataAccess              
Try                    
Dim sqlCn As New SqlConnection(DA.mConnectionString)                  
Dim sqlCmd As New SqlCommand(SQLstr, sqlCn) 
  sqlCn.Open() 'open connection with sql string                    
If UCase(Left(SQLstr, 6) = "SELECT") Then                     
 sqlDR = sqlCmd.ExecuteReader                     
 While sqlDR.Read()                          
sqlDR.Close()  'Why? Cos MSDN Says:you cannot retrieve output parameters until after you call Close.
Return sqlDR                     
End While                  
Else                      
sqlCmd.ExecuteNonQuery()                     
End If                    
sqlCmd.Connection.Close()                                
Catch ex As Exception                 
MsgBox(ex.ToString)              
End Try         
End Function      
End Class
Has someone out there have any idea why?