how to fix this error

Question

I am new to entity frame work when trying to insert data to Database iam gettin error 'System.Data.Objects.ObjectSet ' does not contain a definition for 'Add' and no extension method 'Add' accepting a first argument of type 'System.Data.Objects.ObjectSet ' could be found (are you missing a using directive or an assembly reference?) protected void Button1_Click(object sender EventArgs e) { welcometestingEntities context = new welcometestingEntities(); department obj = new department(); obj._name = TextBox1.Text; obj._location = TextBox2.Text; context.Departements.Add(obj); //error on this line //--- Bind data to repeater. bindStudentInfo(); //--- Show confirmation message in label. //--- Clear text from textboxes } please help me thanks

Vincent Maverick Durano · Answer

Double check the name of your object to verify if it's correct. You are using the code context.Depart e ments.Add(obj); //you probably have spelled it wrong Maybe it is context.Departments.Add(obj);

ali tuncer · Answer

are you sure it is Departements? by default it should be departments.. context.departments.AddObject(obj); context.SaveChanges();

prabhu p · Answer

i tried that addobject and savechanges but iam getting same error like add

ali tuncer · Answer

try this way : context.Departements.AddObject(obj); context.SaveChanges();