C#

Ankit Rajpoot wrote:

I just study the C# programming guide thoroughly, yet I expect help from Codeproject members as I don't have enough time.

Ankit Rajpoot wrote:

I'm not a professional programmer working for some company

Ankit Rajpoot wrote:

Now the problem is that both the constructors simply copy the object reference 'root'. What if the calling method calls the .Close method on the same instance.

static RegistryKey CopyKey(RegistryKey k, bool writeable)
{
    string[] pathParts = k.Name.Split(new string[] { @"\" }, StringSplitOptions.None);
    RegistryKey currentKey = null;
    // get the root key
    switch (pathParts[0].ToUpper())
    {
        case "HKEY_CLASSES_ROOT":
            currentKey = Registry.ClassesRoot;
            break;
        case "HKEY_CURRENT_CONFIG":
            currentKey = Registry.CurrentConfig;
            break;
        case "HKEY_CURRENT_USER":
            currentKey = Registry.CurrentUser;
            break;
        case "HKEY_DYN_DATA":
            currentKey = Registry.DynData;
            break;
        case "HKEY_LOCAL_MACHINE":
            currentKey = Registry.LocalMachine;
            break;
        case "HKEY_PERFORMANCE_DATA":
            currentKey = Registry.PerformanceData;
            break;
        case "HKEY_USERS":
            currentKey = Registry.Users;
            break;
    }
    if (pathParts.Length == 1)
        return currentKey;

    // walk the path of the original key to create a copy
    for (int pathPartIndex = 1; pathPartIndex < pathParts.Length; pathPartIndex++)
    {
        currentKey = currentKey.OpenSubKey(pathParts[pathPartIndex], writeable);
    }
    return currentKey;
}

# if InternaldBuild
    <summary>... </summary>
# endif
    internal void F () ...

public int CompareTo(SalesAllocationOrderDetail other)
{
    int result = SalesOrderDueDate.CompareTo(other.SalesOrderDueDate);
    if (result == 0)
    {
        // SalesOrderDueDates are equal, sort by OldestTransactionDueDates
        return OldestTransactionDueDate.CompareTo(other.OldestTransactionDueDate);
    }
    else
    {
        // SalesOrderDueDates are not equal, no need to look at the OldestTransactionDueDates
        return result;
    }  
}

/// <summary>
/// Sort by the Sales Order Due Date & oldest transaction on the order - combinded
/// </summary>
public static Comparison<SalesAllocationOrderDetail> ByCompleteDateSort =
    delegate (SalesAllocationOrderDetail s1, SalesAllocationOrderDetail s2)
    {
        //return s1.CompleteDateSort.CompareTo ( s2.CompleteDateSort );
        int returnValue = -1;
        if (s1.SalesOrderDueDate < s2.SalesOrderDueDate)
        {
            returnValue = 0;
        }
        else if (s1.SalesOrderDueDate == s2.SalesOrderDueDate)
        {
            returnValue = s1.OldestTransOnOrder.CompareTo(s2.OldestTransOnOrder);
        }
        return returnValue;
    };