ViewBag.RequestTypeName = manager.GetRequestTypesList().AsEnumerable().Select(requestT =>
                    new { Text = requestT.name, Value = requestT.id.ToString() });

            ViewBag.RequestTypeDiscr = manager.GetRequestTypesList().AsEnumerable().Select(requestT =>
                    new { Text = requestT.description, Value = requestT.id.ToString() });

                    <div class="four columns">@Html.DropDownListFor(p => Model.reqType, new SelectList(ViewBag.RequestTypeName, "Value", "Text"), new { @class = "expand" })</div>
                    <div class="seven columns">
                        <fieldset>
                            <legend>Памятка</legend>

                            @Html.TextArea("RequestTypeDiscr", null, new { @class = "form-control" })


                        </fieldset>
                    </div>

    $(document).ready(function () {
        $("#reqType").change(function () {


            var array = @Html.Raw(Json.Encode(@ViewBag.RequestTypeDiscr));
for (var i = 0; i < array.length; i++) {
    if ($(this).val() = array[i].Value) {
        var f = array[i];
        $('#RequestTypeDiscr').html(f.Text);
    }
}   
	 
}).change();
});