Thread: problems with inventory system

WAZ UP EVERYONE.

I am making an inventory system that manages items you know adds items, removes and etc.

SO ive been able to do a lot of things so far like add new item and quit and ive made a menu so i can navigate functions.
But ive run into problems i cant get the rest of the code to work can you please help me? when i do the other ones it doesnt work

Code:

#include <stdio.h>
#include <string.h>
char itemName [50];
 float itemPrice = 0;
  float total = 0;
  int numberOfItems = 0;
   int number = 0;
   char scanItem [50];
   float scanPrice = 0;
    void add(float aPrice,char aName [50]);
    float getTotal();
    float calaverage();

    char nameforitem[20];
    int amount;
    char unit[10];

void add(struct ItemsList * detail , int number)
{
    int i=0,n=1,x,error;
    for (i=0; i<number; i++,n++)
    {
        printf(" ItemName  %d:",n);
        scanf("%19s",&detail[i].ItemName);
        do
        {
            printf("Amount:");
            fflush(stdin);
            error = scanf("%d",&detail[i].amount);
            if (error!=1)
                printf("Wrong form. Try again!");
        }
        while (error!=1);
        printf("Unit:");
        scanf("%9s",&detail[i].unit);
    }
    int main(void)
    {
        struct ItemsList *points;
    int numberOfItem;
    printf("How many items:");
    scanf("%d",&numberOfItem);
    points=(struct ItemsList*) malloc (numberOfItem * sizeof(struct ItemsList*));



    printf("List of Items...\n");
    int k;
    for (k=0; k<numberOfItem; k++)
    {
        printf("%-20s%-10d%-20s\n", points[k].Item Name, points[k].amount, points[k].unit);
    };

while (1)
{
printf("1. Add new Item\n");
printf("2. Print amount of items stored\n");
printf("3. Remove an item\n");
printf("4. Display info on items\n");
printf("5. Search for items\n");
printf("6. Check for given items in storage\n");
printf("7. Print price for items stored\n");
printf("8. Manage items\n");
printf("9. Save storage to file\n");
printf("10. Load storage from file\n");
printf("11. Quit\n"); printf("Enter Option: ");
      scanf("%d",&number);
      if(number==1)
        {
            printf ("Enter item name: ");
  scanf ("%s", scanItem);
  printf ("\n");
            printf ("\nEnter Price: ");
 scanf("%f",&scanPrice);

   add(scanPrice,scanItem);
   }

   else if (number == 2) printf ("\nManage items    %s\n"),
    scanf("20%s-20%f", scanItem, &scanPrice);

   else if (number == 3)

    printf("Enter the Item Name wish you want to delete \n");
    scanf ("%s", scanItem);
   if ( itemName >= itemName  )
      printf("Deletion not possible.\n");
   else
   {
       printf("Delete item")
              scanf("delete item")

   }


   else if (number == 4)
   else if (number == 5)

    printf("Search for items\n")

   else if (number == 6)
   else if (number == 7) printf ("Total is %f\n\n", getTotal());
   else if (number == 8)
   else if (number == 9)
   else if (number == 10) printf ("The average is %f\n\n", calaverage ());
   else if (number == 11) break; else printf("Invalid Option\n");
   }
   return 0;
   }
    void add(float aPrice,char aName [50])
    {
        strcpy (itemName, aName);
        itemPrice = aPrice;

          total=total+aPrice;
          numberOfItems++;
          }
          float getTotal()
          {
              return total;
              }
              float calaverage()
              {
                   return total/numberOfItems;
                   }