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PO"Object reference not set to an instance of an object" Error
 

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    <p>Im Having Problems Figuring Out Why I am Receiving an "Object reference not set to an instance of an object" Error in the Presentation Layer with this line:</p> <p><strong>TempAccountManager.Accounts.Add(tempAccount);</strong></p> <p>I Have Walked Through the Code With Visual Studios Debugger and the Account Gets Created. I Believe I Have an Issue With an Access Modifer, Not Sure.</p> <p><strong>Presentation Layer</strong></p> <pre><code>using myBudget.BusinessObject; using myBudget.BusinessLogic; namespace myBudget { public partial class NewBudgetWizard : Form { public int CurrentStep { get; set; } public Account TempAccount = new Account(); public AccountManager TempAccountManager = new AccountManager(); public NewBudgetWizard() { private void createAccountList(ListView lvAccounts) { foreach (ListViewItem lvi in lvAccounts.Items) { int tempAccNumber = Int32.Parse(lvi.SubItems[0].Text); string tempAccName = lvi.SubItems[1].Text; string tempAccType = lvi.SubItems[2].Text; decimal tempAccBalance = decimal.Parse(lvi.SubItems[3].Text, System.Globalization.NumberStyles.Currency); Account tempAccount = new Account(tempAccNumber, tempAccName, tempAccType, tempAccBalance, DateTime.Now); TempAccount = new Account(tempAccNumber, tempAccName, tempAccType, tempAccBalance, DateTime.Now); TempAccountManager.Accounts.Add(tempAccount); } } } } </code></pre> <p><strong>Business Logic Layer</strong></p> <pre><code>using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Collections; using myBudget.BusinessObject; namespace myBudget.BusinessLogic { public class AccountManager : Account { public List&lt;Account&gt; Accounts { get; set; } } } </code></pre> <p><strong>Business Object</strong></p> <pre><code>using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace myBudget.BusinessObject { public class Account { public int AccountID { get; set; } public int UserID { get; set; } public int Number { get; set; } public string Name { get; set; } public string Type { get; set; } public decimal Balance { get; set; } public DateTime ReconcileTimeStamp { get; set; } public Account() { } public Account(int number, string name, string type, decimal balance, DateTime reconcileTimeStamp) { Number = number; Name = name; Type = type; Balance = balance; ReconcileTimeStamp = reconcileTimeStamp; } } } </code></pre>
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