The property 'text' is part of the object's key information and cannot be modified

Question

So I have a table in the database, with a column that is simply an nvarchar(800).

When I try to do:

try
{
    UserTable = (from x in entities.userTab         


        

Answer 1

Follow these simple steps

Step 1: Check whether your table is having primary key column in database or not. If it does not have any primary key then add a primary key. Because if we don't add a primary key to table than entity framework creates its own key collection and add all columns in it.

Step 2: Open your .edmx file to see table object mapping. You will be able to see each column of table is having icon like primary key. So Write click on your page and update .edmx from database.

Step 3: If you still see same primary key icons on all columns than click on column name you want to update one by one and go to property window and Set Entity Key property to false.