'Validation failed for one or more entities. See 'EntityValidationErrors' property for more details.'

Hi All,

I am using MVC 5 with EF 6.

In my application I chose Controller with views using Entity Framwork, which automatically creates the view and methods like below.

public ActionResult Edit([Bind(Include = "bigid,vcname,vcrate_phour,dateadded,datemodi,addedby,updatedby")] OT_Band_Master oT_Band_Master)
        {
            if (ModelState.IsValid)
            {
                oT_Band_Master.datemodi = DateTime.Now.Date;
                oT_Band_Master.updatedby = Convert.ToInt32(Session["AdminID"].ToString());
                db.Entry(oT_Band_Master).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(oT_Band_Master);
        }

Suppose I  just guess ( not sure ) that this error comes when don't provide all fields in Edit ActionResult.

Actually I don't need to update all fields as mentioned here (bigid,vcname,vcrate_phour,dateadded,datemodi,addedby,updatedby). 

I just need to only 4 fields. 2 are I am mentioning here in code.

oT_Band_Master.datemodi = DateTime.Now.Date;
                oT_Band_Master.updatedby = Convert.ToInt32(Session["AdminID"].ToString());

And other two it took from like below

 @Html.EditorFor(model => model.vcname

Please suggest.

Thanks