diff --git a/admin_user.h b/admin_user.h
index 4964ebc..92716f0 100644
--- a/admin_user.h
+++ b/admin_user.h
@@ -42,7 +42,7 @@ void admin_menu(){
                 inv_control();
                 break;
             case 2://action with transction
-                // tran_control();
+                tran_control();
                 break;
             case 3://action with user
                 // user_control();
@@ -344,6 +344,7 @@ void update_item(struct inventory db,int index){
 
     if(!update_db_invt(db)){
         printf("Failed to update item\n");
+        exit(1);
     }else{
         printf("Item updated\n");
     }
@@ -373,3 +374,320 @@ void remove_item(struct inventory db,int index){
     getchar();
 }
 
+//tran control
+void list_tran(struct transaction db);
+void add_tran();
+void tran_control(){
+    struct transaction tran = read_db_tran();
+    int choice;
+    do{
+        system("cls");
+        welcome_message();
+        printf("Transaction control\n");
+        printf("1. List transaction\n");
+        printf("2. new transaction\n");
+        printf("3. Exit\n");
+        printf("Please input your choice: ");
+        fflush(stdin);
+        scanf("%d",&choice);
+        switch(choice){
+             case 1:
+                list_tran(tran);
+                break;
+            case 2:
+                add_tran(tran);
+                break;
+            case 3:
+                break;
+            default:
+                printf("Invalid input, try again\n");
+                printf("press any key to continue\n");
+                fflush(stdin);
+                getchar();
+                break;
+        }
+    }while(choice != 5);
+}
+
+
+void print_tran(struct transaction db, int cur, int end,struct Map* map);
+struct transaction showTran(struct transaction db,int index);
+
+void list_tran(struct transaction db){
+    int choice = -1;
+    int page = 0;
+    int page_size = PAGE_SIZE;
+    int total_pages = ceil((double)db.db.row_count / page_size);
+    int row = db.db.row_count;
+    struct Map* map = NULL;
+    do{
+    system("cls");
+    welcome_message();
+    printf("Transaction list\n");
+    printf("0 exit\n");
+    printf("1 sort Date&Time decending\n");
+    printf("2 sort Date&Time ascending\n");
+    printf("3 sort price decending\n");
+    printf("4 sort price ascending\n");
+    printf("5 sort quantity decending\n");
+    printf("6 sort quantity ascending\n");
+    printf("7 sort total decending\n");
+    printf("8 sort total ascending\n");
+    printf("No.  Date        Time        Price       Quantity    Total\n");
+    if(page+1 == total_pages){
+        print_tran(db,page*page_size,row,map);
+    }else{
+        print_tran(db,page*page_size,(page+1)*page_size,map);
+    }
+    //page control
+    printf("%d next page\n", page_size+3);
+    printf("%d previous page\n", page_size+4);
+    printf("%d set page size\n", page_size+5);
+    printf("%d/%d/%d(page size/page number/total)\n",page_size, page+1,total_pages);
+
+    bool valid = true;
+    do{
+        valid = true;
+        printf("Please input your choice: ");
+        fflush(stdin);
+        scanf("%d",&choice);
+         if(choice <=8 && choice > 0){
+            printf("sorting...\n");
+            map = sortTrans(db,choice);
+        }else if(choice == page_size+3 && page + 1 < total_pages){
+            page++;
+        }else if(choice == page_size+4 && page > 0){
+            page--;
+        }else if(choice == page_size+5){
+            printf("Enter page size: ");
+            fflush(stdin);
+            scanf("%d", &page_size);
+            total_pages = ceil(row / page_size);
+        }else if(choice >= 9 && choice < row+9){
+            if(map == NULL){
+                db = showTran(db,choice - 9 + page_size*page);
+            }else{
+                db = showTran(db,map[choice - 9 + page_size*page].key);
+            }   
+        }else if(choice != 0){
+            printf("Invalid choice\n");
+            valid = false;
+        }
+
+    }while(!valid);
+    }while(choice != 0);
+    return;
+}
+void print_tran(struct transaction db, int cur, int end,struct Map* map){
+    for (int i = cur; i < end; i++)
+    {
+        if(map != NULL){
+            double total = db.row[map[i].key].price * db.row[map[i].key].quantity;
+            printf("%-4d%-12s%-12s$%-12.1lf%-12d$%-12.1lf\n",i+1,db.row[map[i].key].date,db.row[map[i].key].time,db.row[map[i].key].price,db.row[map[i].key].quantity,total);
+        }else{
+            double total = db.row[i].price * db.row[i].quantity;
+            printf("%-4d%-12s%-12s$%-12.1lf%-12d$%-12.1lf\n",i+1,db.row[i].date,db.row[i].time,db.row[i].price,db.row[i].quantity,total);
+        }
+    }
+}
+
+struct transaction update_tran(struct transaction db,int index);
+struct transaction remove_tran(struct transaction db,int index);
+
+struct transaction showTran(struct transaction db,int index){
+    printf("Transaction detail\n");
+    printf("Date:day %s\n",db.row[index].date.day);
+    printf("Date:month %s\n",db.row[index].date.month);
+    printf("Date:year %s\n",db.row[index].date.year);
+    printf("Time:hour %s\n",db.row[index].time.hour);
+    printf("Time:minute %s\n",db.row[index].time.minute);
+    printf("Time:second %s\n",db.row[index].time.second);
+    printf("Price: $%.1lf\n",db.row[index].price);
+    printf("Quantity: %d\n",db.row[index].quantity);
+    printf("ID: %d\n",db.row[index].id);
+    printf("Barcode: %s\n",db.row[index].barcode);
+    printf("Total: $%.1lf\n",db.row[index].price * db.row[index].quantity);
+    printf("1 edit transaction\n");
+    printf("2 delete transaction\n");
+    printf("3 exit\n");
+    int choice;
+    do{
+        printf("Please input your choice: ");
+        fflush(stdin);
+        scanf("%d",&choice);
+        switch(choice){
+            case 1:
+                db = update_tran(db,index);
+                break;
+            case 2:
+                db = remove_tran(db,index);
+                break;
+            case 3:
+                break;
+            default:
+                printf("Invalid input, try again\n");
+                break;
+        }
+    }while(choice != 3);
+}
+
+//tran controls
+void add_tran(){
+    char* temp;
+    struct transaction_row* row = (struct transaction_row*)malloc(sizeof(struct transaction_row));
+    temp = prompt_item("Please input date:day \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    strcpy(row->date.day,temp);
+    temp = prompt_item("Please input date:month \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    strcpy(row->date.month,temp);
+    temp = prompt_item("Please input date:year \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    strcpy(row->date.year,temp);
+    temp = prompt_item("Please input time:hour \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    strcpy(row->time.hour,temp);
+    temp = prompt_item("Please input time:minute \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    strcpy(row->time.minute,temp);
+    temp = prompt_item("Please input price \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    row->price = atof(temp);
+    temp = prompt_item("Please input quantity \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    row->quantity = atoi(temp);
+    temp = prompt_item("Please input ID \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    row->id = atol(temp);
+    temp = prompt_item("Please input barcode \n>");
+    if(temp == NULL){
+        free(row);
+        return;
+    }
+    row->barcode = atol(temp);
+    if(row == NULL || !append_tran(row)){
+        printf("Failed to add item\n");
+    }else{
+        printf("Item added\n");
+    }
+    printf("press any key to continue\n");
+    fflush(stdin);
+    getchar();
+
+
+}
+
+struct transaction update_tran(struct transaction db,int index){
+    char temp[100];
+    printf("Update transaction(empty value to not change the value)\n");
+    printf("Please input the Date:day(original:%s)\n>",db.row[index].date.day);
+    fflush(stdin);
+    scanf("%[^\n]", temp);//input until /n
+    if(strcmp(temp,"") != 0){//check if temp is not empty
+        db.row[index].date.day = atoi(temp);
+    }//else preserve the original value
+    printf("Please input the Date:month(original:%s)\n>",db.row[index].date.month);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].date.month = atoi(temp);
+    }
+    printf("Please input the Date:year(original:%s)\n>",db.row[index].date.year);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].date.year = atoi(temp);
+    }
+    printf("Please input the Time:hour(original:%s)\n>",db.row[index].time.hour);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].time.hour = atoi(temp);
+    }
+    printf("Please input the Time:minute(original:%s)\n>",db.row[index].time.minute);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].time.minute = atoi(temp);
+    }
+    printf("Please input the Time:second(original:%s)\n>",db.row[index].time.second);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].time.second = atoi(temp);
+    }
+    printf("Please input the Price(original:%.1lf)\n>",db.row[index].price);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].price = atof(temp);
+    }
+    printf("Please input the Quantity(original:%d)\n>",db.row[index].quantity);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].quantity = atoi(temp);
+    }
+    printf("Please input the ID(original:%d)\n>",db.row[index].id);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].id = atol(temp);
+    }
+    printf("Please input the Barcode(original:%d)\n>",db.row[index].barcode);
+    fflush(stdin);
+    scanf("%[^\n]", temp);
+    if(strcmp(temp,"") != 0){
+        db.row[index].barcode = atol(temp);
+    }
+    if(!update_db_tran(db)){
+        printf("Failed to update transaction\n");
+        exit(1);//exit program to prevent errors
+    }else{
+        printf("Transaction updated\n");
+    }
+    printf("press any key to continue\n");
+    fflush(stdin);
+    getchar();
+
+    return db;
+}
+
+struct transaction delete_tran(struct transaction db,int index){
+    db.row[index].isdeleted = true;
+    if(!update_db_tran(db)){
+        printf("Failed to delete transaction\n");
+        exit(1);//exit program to prevent errors
+    }else{
+        printf("Transaction deleted\n");
+    }
+    printf("press any key to continue\n");
+    fflush(stdin);
+    getchar();
+
+    return read_db_tran();
+} 
\ No newline at end of file
diff --git a/filecontrol.h b/filecontrol.h
deleted file mode 100644
index 186bd61..0000000
--- a/filecontrol.h
+++ /dev/null
@@ -1,11 +0,0 @@
-//include std lib if they havent been included
-#ifndef STD_LIB_H
-#define STD_LIB_H
-#include<stdio.h>
-#include<stdlib.h>
-#include<string.h>
-#include<stdbool.h>
-#include<math.h>
-#include<time.h>
-#include<ctype.h>
-#endif
diff --git a/normal_user.h b/normal_user.h
index a2b9b08..fab2511 100644
--- a/normal_user.h
+++ b/normal_user.h
@@ -140,7 +140,11 @@ void list_page(struct inventory db,struct Map* map,int row,struct inventory (*sh
             scanf("%d", &page_size);
             total_pages = ceil(row / page_size);
         }else if(choice >= 9 && choice < row+9){
-            db = (*showitem)(db,choice - 9 + page_size*page);
+            if(map == NULL){
+                db = (*showitem)(db,choice - 9 + page_size*page);
+            }else{
+                db = (*showitem)(db,map[choice - 9 + page_size*page].key);
+            }
         }else if(choice != 0){
             printf("Invalid choice\n");
             valid = false;