public class Category { [Key] public int CategoryId { set; get; } public string CategoryName { set; get; } public int? ParentCategoryId { set; get; } public string ParentCategoryName { set; get; } [NotMapped] public virtual IList<Category> Categories { set; get; } public Category() { Categories = new List<Category>(); } }
[HttpPost] public ActionResult UpdateCategory(Category _category) { if (_category.CategoryId != 0) { objCategory = objCategoryContext.CategoryEntries.Where(c => c.CategoryId == _category.CategoryId).FirstOrDefault(); objCategory.CategoryName = _category.CategoryName; objCategoryContext.CategoryEntries.Add(objCategory); objCategoryContext.SaveChanges(); } return RedirectToAction("Message"); }
public class CategoryContext : DbContext { public CategoryContext() : base("Name=GunStore") { Configuration.ProxyCreationEnabled = false; } public DbSet<Category> CategoryEntries { set; get; } protected override void OnModelCreating(DbModelBuilder modelBuilder) { base.OnModelCreating(modelBuilder); modelBuilder.Entity<Category>().ToTable("Category"); } }
public ActionResult UpdateCategory(Category _category) { if (_category.CategoryId != 0) { objCategory = objCategoryContext.CategoryEntries.Where(c => c.CategoryId == _category.CategoryId).FirstOrDefault(); objCategory.CategoryName = _category.CategoryName; objCategoryContext.Students.Attach((objCategory ); objCategoryContext.ObjectStateManager.ChangeObjectState(objCategory , System.Data.EntityState.Modified); objCategoryContext.SaveChanges();; } return RedirectToAction("Message"); }
objCategoryContext.ObjectStateManager.ChangeObjectState(objCategory , System.Data.EntityState.Modified);
objCategory.CategoryName = _category.CategoryName; objCategoryContext.CategoryEntries.Attach((objCategory)); var manager = ((IObjectContextAdapter)objCategoryContext).ObjectContext.ObjectStateManager; manager.ChangeObjectState(objCategory, System.Data.EntityState.Modified); objCategoryContext.SaveChanges(); ;
var
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