Hi 

i want to use datepicker in mvc  but when i'm select date less then 12th day then my form post method is working but when i'm select date more then 12th day then i'm getting this error.

please review this error

http://my.jetscreenshot.com/29458/20161222-gh1x-25kb.png

model 

public DateTime? DID_Date_Of_Activation { get; set; }

 public DateTime? DID_Date_of_De_Activation { get; set; }

html 

<div class="form-group">
            @Html.Label("DID Date Of Activation", htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.TextBoxFor(model => model.DID_Date_Of_Activation, new { htmlAttributes = new { @class = "form-control datepicker" } })
                @Html.ValidationMessageFor(model => model.DID_Date_Of_Activation)
            </div>
        </div>

 <div class="form-group">
            @Html.Label("DID Date of De-Activation", htmlAttributes: new { @class = "control-label col-md-2" })
            <div class="col-md-10">
                @Html.TextBoxFor(model => model.DID_Date_of_De_Activation, new { htmlAttributes = new { @class = "form-control datepicker" } })
                @Html.ValidationMessageFor(model => model.DID_Date_of_De_Activation)
            </div>
        </div>

i'm change validation.js but not resolve this issue.......