jquery datepicker not identifying after partial postback in MVC

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MVC

jQuery

I have an empty table with five empty rows under which I had a Datepicker field. I had an add button when I click on Add button one empty row will append to the table. Datepicker field is working fine before clicking on Add button but when I click on add button Datepicker is not identifying by the following code.

<div class="panel-body">
            <div class="row">
                <div class="col-sm-12">
                    @for (int i = 0; i < SubSummerRepairListCollection.Count; i++)
                    {

                        var StyleShow = "display:" + (SubSummerRepairListCollection[i].SummerRepairID == null ? "block" : "none");
                        var StyleNone = "display:" + (SubSummerRepairListCollection[i].SummerRepairID == null ? "none" : "block");
                        if (i == 0)
                        {
                            btnAddNewShow = SubSummerRepairListCollection[i].SummerRepairID == null ? true : false;
                        }
                        <div class="SubSummer">
                            <div class="col-sm-4 text-center">
                                @Html.HiddenFor(m => SubSummerRepairListCollection[i].SummerRepairID, new { @id = "hidSummerRepairID" })
                                @Html.TextBoxFor(m => SubSummerRepairListCollection[i].LocationOfRepairs, htmlAttributes: new { @class = "form-control m-bot15", @style = StyleShow })
                                @Html.Label("", (SubSummerRepairListCollection[i] != null ? (SubSummerRepairListCollection[i].LocationOfRepairs != null ? SubSummerRepairListCollection[i].LocationOfRepairs.ToString() : "") : ""), new { @style = StyleNone, @class = "lblForms" })
                            </div>
                            <div class="col-sm-4 text-center">
                                @Html.TextBoxFor(m => SubSummerRepairListCollection[i].DescribeWorkRepairNeeded, htmlAttributes: new { @class = "form-control m-bot15", @style = StyleShow })
                                @Html.Label("", (SubSummerRepairListCollection[i] != null ? (SubSummerRepairListCollection[i].DescribeWorkRepairNeeded != null ? SubSummerRepairListCollection[i].DescribeWorkRepairNeeded.ToString() : "") : ""), new { @style = StyleNone, @class = "lblForms" })

                            </div>
                            <div class="col-sm-4 text-center">
                                @Html.TextBoxFor(m => SubSummerRepairListCollection[i].DesireCompletionDate, htmlAttributes: new { @class = "form-control m-bot15", @style = StyleShow, @id = "txtDesireCompletionDate", @onkeypress = "return isDateKey(event)" })
                                @Html.Label("", (SubSummerRepairListCollection[i] != null ? (SubSummerRepairListCollection[i].DesireCompletionDate != null ? Convert.ToDateTime(SubSummerRepairListCollection[i].DesireCompletionDate.ToString()).ToString("MM/dd/yyyy") : "") : ""), new { @style = StyleNone, @class = "lblForms" })
                            </div>
                        </div>
                    }
                </div>
            </div>
        </div>

Script Code

$(function () {
        $('.SubSummer').find('#txtDesireCompletionDate').datepicker({
            format: 'mm/dd/yyyy', startDate: new Date(), autoclose: true
    });
        $('#btnAddNew').click(function (e) {
            e.preventDefault();
            var ArraySubSummer = Array();
            $('.SubSummer').each(function (index, item) {
                var obj = new Object();
                obj.SummerRepairID = $(this).find('#hidSummerRepairID').val();
                obj.LocationOfRepairs = $(this).find(':text')[0].value;
                obj.DescribeWorkRepairNeeded = $(this).find(':text')[1].value;
                obj.DesireCompletionDate = $(this).find(':text')[2].value;
                ArraySubSummer.push(obj);

            });
            $.ajax({
                url: "@(Url.Action("AddNewSubSummerRepairWorkOrder", "Forms"))",
                type: 'POST',
                contentType: 'application/json; charset=utf-8',
                data: '{  "lstSubSummerRepair":' + JSON.stringify(ArraySubSummer) + '}',
                success: function (result) {
                    $("#SubSummerRepairContent").html(result);

                } 
            });
            return false;
        });
 });