Retrieving a date range in c#

I am trying to get a list of records from my Elasticsearch client using C#. Within my Elasticsearch index I have a field called startdate. I am looking to query a date range based off this code.

        List<Employee> respose = Connection.EsClient().Search<Employee>(s => s

                .Query(q => q
                      .DateRange(c => c

When I run this code nothing returns back from Elasticsearch. Also, if I increase the date range it returns back everything which is incorrect. It is kind of like it is ignoring the DateRange filter. I am currently running Elasticsearch 6.4.2. Anything helps, thanks!

Hi DonElk,

Would you be able to generate the JSON that is being sent for this query? It is difficult to diagnose any problems from the C# without seeing what the client library is actually sending.

"{\r\n "from": 0,\r\n "size": 10,\r\n "query": {\r\n "range": {\r\n "startdate": {\r\n "_name": "startDate_query",\r\n "gte": "01/01/2016 11:25:06",\r\n "lte": "15/01/2016 11:25:06",\r\n "format": "dd/MM/yyyy hh:mm:ss||yyyy"\r\n }\r\n }\r\n }\r\n}"

"{"from": 0, "size": 10, "query": {"range": {"startdate": {"_name": "startDate_query", "gte": "01/01/2016 11:25:06", "lte": "15/01/2016 11:25:06", "format": "dd/MM/yyyy hh:mm:ss||yyyy"}}}}"

This is the same code, just different parameters used to call Elasticsearch Api. Thank you!

By the way, I am also seeing this same behavior in Postman. For example:
"query": {
"range" : {
"startdate" : {
"format": "mm/dd/yyyy hh:mm:ss",
"gte": "02/08/2016 11:25:06",
"lt": "03/08/2016 11:25:06"

"startdate": "03/28/2016 13:26:50",
"startdate": "03/05/2016 13:48:28",
"startdate": "03/08/2016 13:25:56",
"startdate": "03/02/2016 14:50:48",
"startdate": "06/03/2016 13:24:01",
"startdate": "11/08/2016 15:25:03"

Just realized the startdate 'type' is set to text. I will probably need to change this to date to fixed this issue. The index data was pulled from a SQL database which was parsed to Elasticsearch using Logstash. The data type for 'startdate' within SQL is of type datetime.

That would definitely do it.

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