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I need to validate one input is unique or not before inserting to DB. I used remote validation attribute in my model class.

[Required(ErrorMessage = "Package name Required")]
[Remote("IsNameAvailble", "Package", ErrorMessage = "Sorry!!! This name have entered for another package")]
public string packagename { get; set; }

<div class="form-group">
<label class="control-label">Package Name</label>
 @Html.TextBoxFor(model => model.package_name, new { @class = "form-control", placeholder = "Name for the Package", type = "text", autofocus = "autofocus", id = "packagename" })
@Html.ValidationMessageFor(model => model.package_name)

Controller code

public ActionResult IsNameAvailble(string package_name)
            Dbfile db = new Dbfile ();
            var exist= db.GetAllList().FirstOrDefault(m => m.package_name == package_name);
            if (exist!= null)
                return Json(false, JsonRequestBehavior.AllowGet);
                return Json(true, JsonRequestBehavior.AllowGet);

This is working perfect in Adding a new name but in editing part if we changing other values (other than package name , it check and display error message )

so I need a way to check it with selected id (if we check with selected id, thn create function won't work )

please anyone suggest answer

Thanks in Advance

What I have tried:

here if I used AdditionalFields property of [Remote] attribute to pass ID , it working in edit view only .

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