DateTime and ParseExact not working properly

I am using AJAX and sending certain data:

  var eventtype = parseInt(record.<%= CEO.FieldEvaluator.GetEvaluatorByDId("EVENT_TYPE_ID").GetFieldDataFieldId()%>);
   var begindate = parseInt(record.<%= CEO.FieldEvaluator.GetEvaluatorByDId("BeginDate").GetFieldDataFieldId()%>);
   var enddate = parseInt(record.<%= CEO.FieldEvaluator.GetEvaluatorByDId("EndDate").GetFieldDataFieldId()%>);

        $.ajax({
            type: "POST", url: "Data.aspx/CheckInsertRecord",
            data: "{EventType:'" + eventtype + "',BeginDate:'" + begindate + "'," +
                   "EndDate:'" + enddate+"' }",
            contentType: "application/json; charset=utf-8", dataType: "json",
            success: function (msg) {
            alert(msg.d);

            }
        });

In the code behind:

  CultureInfo provider = CultureInfo.InvariantCulture;

    DateTime bd = DateTime.ParseExact(BeginDate,"MM/DD/YYYY", provider);
    DateTi开发者_StackOverflow中文版me ed = DateTime.ParseExact(EndDate, "MM/DD/YYYY", provider);

However when I run it i get an error saying

  "String was not recognized as a valid Datetime"

Can u please help me in getting rid of this.

Or is there any other way to convert string to a DateTime?

In .NET, a correct custom date/time format string for a date string like "01/01/2011" is "MM/dd/yyyy"

Try

DateTime bd = DateTime.ParseExact(BeginDate,"MM/dd/yyyy", provider);
DateTime ed = DateTime.ParseExact(EndDate, "MM/dd/yyyy", provider);

or

DateTime bd = DateTime.ParseExact(BeginDate,"M/d/yyyy", provider);
DateTime ed = DateTime.ParseExact(EndDate, "M/d/yyyy", provider);