//Load data from db into data grid view
private void authorBindingNavigatorSaveItem_Click(object sender, EventArgs e)
{
Validate();
authorBindingSource.EndEdit();
try
{
dbcontext.SaveChanges();
}
catch (DbEntityValidationException)
{
MessageBox.Show("FirstName and LastName must contain values", "Entity Validation Exception");
}
}
// click event handler for the Save Button in the
// BindingNavigator saves the changes made to the data
private void authorBindingNavigatorSaveItem_Click(object sender, EventArgs e)
{
Validate(); // validate the input fields
authorBindingSource.EndEdit(); // complete the current edit, if any
// try to save changes
try
{
dbcontext.SaveChanges(); // write changes to database file
} // end try
catch (DbEntityValidationException)
{
MessageBox.Show("FirstName and LastName must contain values", "Entity Validation Exception");
} // end catch
} //end method for save button functionality