Not able to edit in entity framework with asp.net/c#

Question

 public ReturnMessage EditCategories(Category objCategory)
    {


        ReturnMessage objReturnMessage = new ReturnMessage();
        try
        {
            Category objCategoryNew = db.Categories.Where(x => x.CategoryId == objCategory.CategoryId).FirstOrDefault();
            if (objCategoryNew != null)
            {
                objCategoryNew = objCategory;
                db.SaveChanges();
                objReturnMessage.isSuccessfull = true;
                objReturnMessage.responseMessage = "Successfully updated.";
            }
            else
            {
                objReturnMessage.isSuccessfull = false;
                objReturnMessage.responseMessage = "Category not present.";
            }
        }
        catch (Exception ex)
        {
            objReturnMessage.isSuccessfull = false;
            objReturnMessage.responseMessage = ex.Message;
        }
        return objReturnMessage;

    }

Everything goes fine there are no exceptions still the data isn't getting updated. I don't know what's the issue. Please help?

No it isn't null contains the old data. Its coming inside the if loop itself. — vini
– vini, Commented Aug 14, 2013 at 10:36

cuongle · Accepted Answer · 2013-08-14 10:40:40Z

2

The line:

objCategoryNew = objCategory;

will not work out since you change the reference objCategoryNew to objCategory, not the object itself, what you have to do is to assign each property of objCategory to objCategoryNew, something like:

objCategoryNew.Pro1 = objCategory.Pro1;
objCategoryNew.Pro2 = objCategory.Pro2;
....

answered Aug 14, 2013 at 10:40

cuongle

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