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I seem to be having a small issue with my code and I was hoping someone could help me with this.
The best way I can explain this is that I have an array ProfileArray, which holds several member profiles.
The loadProfile member function is called when the program is started. When the array is updated for the first time using the member function AddMember, within loadProfile, the 0 element is properly initialized to the member profile.
Well when the next loop is performed within the while function within loadProfile the ProfileArray 0 element is updated as newprofile1 is being initialized. Then the addMember function is called and ProfileArray 1 element is updated. So basically the second member profile overwrites the previous profile in the 0 element and then addMember is called and the 1 element is then initialized to the second member function. And there lies the error. Has anyone had to deal with this before I am stumped at this point and am not sure where to research this?
Thanks for any advice provided.
namespace nProfile
{
public class Profile
{
public string sName;
public string sRank;
public string sInit;
public int iID;
}
}
namespace ProfCont
{
/// <summary>
/// Class manages an array of profiles loaded from
/// a file at program start up
/// </summary>
public sealed class ProfContainer
{
private static int iSize = 5; //increase to 50
private int iCount, iID, PNum;
private Profile[] ProfileArray = new Profile[iSize+1];
private Profile nullProf = new Profile();
private StreamWriter output;
private StreamReader input;
private FileStream fs;
private Random rand = new Random();
public ProfContainer()
{
rand = new Random(100);
iCount = 1;
iID = 0;
PNum= 0;
nullProf.iID = 0;
nullProf.sInit = "";
nullProf.sName = "";
nullProf.sRank = "";
for (int i = 0; i < iSize+1; i++)
{
ProfileArray[i] = nullProf;
}
}
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Retrieves the singleton instance of the ProfContainer class
/// </summary>
public static ProfContainer Instance
{get {return Nested.instance;}}
class Nested
{
/// <summary>
/// Explicit static constructor to tell C# compiler
/// not to mark type as beforefieldinit
/// </summary>
static Nested() { }
internal static readonly ProfContainer instance = new ProfContainer();
}//end Nested
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Insert a member profile into the profile container
/// Uses an ordered Array-Based symbol table
/// </summary>
/// <param name="Member"></param>
public void AddMember(Profile Member)
{
//iID = Member.iID;
// while (PNum > 0 /*&& iID < ProfileArray[PNum - 1].iID*/)
// { ProfileArray[PNum] = ProfileArray[PNum - 1]; PNum--; }
ProfileArray[PNum] = Member;
PNum = ++iCount;
}//end AddMember
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Returns the number of profiles in the profile container
/// </summary>
/// <returns></returns>
public int Count()
{
return iCount;
}//end Count()
/// <summary>
/// Checks for array overflow
/// </summary>
/// <returns></returns>
public int Overflow()
{
if (iCount < (iSize + 1)) return 1;
else
return 0;
}//end OverFlow
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Removes a profile from the array
/// </summary>
/// <param name="newProfile">
/// Profile to be deleted
/// </param>
/// <returns>
/// returns 0 if unsuccessful and 1 if successful
/// </returns>
public int RemoveProfile(Profile newProfile)
{
for(int i = 0; i < iCount; i++)
if (ProfileArray[i].iID == newProfile.iID)
{
ProfileArray[i].iID = 0;
ProfileArray[i].sInit = "";
ProfileArray[i].sName = "";
ProfileArray[i].sRank = "";
iCount--;
return 1;//success
}//end if
return 0; //profile not found
}//end RemoveProfile
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Searches the profile array by ID
/// </summary>
/// <param name="newProfile"></param>
/// <returns>
/// returns 0 if profile not found
/// returns 1 if profile is found
/// </returns>
public int SearchProfileArray(Profile newProfile)
{
try
{
for (int i = 0; i < iCount; i++)
{
if (newProfile.iID == ProfileArray[i].iID)
{
return 1; // profile ID found
}//end if
}//end for
}//end try
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}//end catch
return 0;
}//end SearchProfileArray
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Searches the profile array and returns the profile if it exists
/// </summary>
/// <param name="iID"> ID of the profile to return</param>
/// <returns>Returns Retrieved Profile</returns>
public Profile SearchProfileArray(int iID)
{
for (int i = 0; i < iCount; i++)
{
//if (ProfileArray[i].iID != iID) break;
if (iID == ProfileArray[i].iID) return ProfileArray[i];
}//end for
MessageBox.Show("Profile Not Found");
return nullProf;
}//SearchProfileArray
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Saves the contents to file. If the file is not
/// empty the contents are appended.
/// </summary>
/// <param name="newProf"></param>
public void SaveProfile(Profile newProf, string saveFile)
{
fs = new FileStream(saveFile , FileMode.Append, FileAccess.Write );
output = new StreamWriter(fs);
int iResult;
//Generate random ID number
do
{
newProf.iID = rand.Next(100,200);
iResult = SearchProfileArray(newProf);
}
while (iResult != 0);
try
{
AddMember(newProf);
output.WriteLine(" {0}|{1}|{2}|{3}| \n ",
newProf.sName, newProf.sRank, newProf.sInit, newProf.iID);
}//end try
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}//end catch
output.Flush();
output.Close();
fs.Close();
}//end SaveProfile
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Overrites the saved file and rewrites buffer information
/// into a new file
/// </summary>
/// <param name="newProf"></param>
public void SaveProfile(string saveFile)
{
fs = new FileStream(saveFile, FileMode.Create, FileAccess.Write);
output = new StreamWriter(fs);
try
{
for (int i = 0; i < iCount; i++)
{
output.WriteLine(" {0}|{1}|{2}|{3}| \n ",
ProfileArray[i].sName, ProfileArray[i].sRank,
ProfileArray[i].sInit, ProfileArray[i].iID);
}//end for
}//end try
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}//end catch
output.Flush();
output.Close();
fs.Close();
}//end SaveProfile
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Loads the PCF.dat file into the profile container array at load up
/// </summary>
public void LoadProfile(string LoadFileName)
{
fs = new FileStream(LoadFileName, FileMode.Open);
input = new StreamReader(fs);
String line = "";
try
{
while ((line = input.ReadLine()) != null)
{
Profile newProfile1 = new Profile();
String[] strings = line.Split(new char[] { '|' });
int i = strings.Length-2;
int j = 0;
while( j != i)
{
if (j == 0)
{
newProfile1.sName = strings[j];
newProfile1.sRank = strings[++j];
newProfile1.sInit = strings[++j];
newProfile1.iID = Convert.ToInt16(strings[++j]);
}
else
{
newProfile1.sName = strings[++j];
newProfile1.sRank = strings[++j];
newProfile1.sInit = strings[++j];
newProfile1.iID = Convert.ToInt16(strings[++j]);
}
AddMember(newProfile1);
}//end while
}//end while
}//end try
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}//end catch
input.Close();
fs.Close();
}//end LoadProfile
}
}
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