Call Stored Procedure with parameters using Entity Framework in ASP.Net Core MVC

Modified my code by taking reference to your suggestion because I have nothing to return from SP.

Repository class:

public void ExecuteWithoutReturn() //7 params are passed here
{
    using (MySqlConnection con = new MySqlConnection(ConnectionString))
    {
        using (MySqlCommand cmd = new MySqlCommand(procedureName, con))
        {
            con.Open();
            cmd.CommandType = System.Data.CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@studyNameSource", _studyNameSource);
            cmd.Parameters.AddWithValue("@scenarioNameSource", _scenarioNameSource);
            cmd.Parameters.AddWithValue("@studyNameDestiny", _studyNameDestiny);
            cmd.Parameters.AddWithValue("@scenarioNameDestiny", _scenarioNameDestiny);
            cmd.Parameters.AddWithValue("@projectNameDestinyArray", _projectNameDestinyArray);
            cmd.Parameters.AddWithValue("@mappingType", _mappingType);
            cmd.ExecuteNonQuery();
        }
        con.Close();
    }
}

Controller Method:

[HttpPost]
public ActionResult ExecuteDuplicateMapping(ViewModel dmViewMode)
{
    try
    {                
         string procedureName = "DuplicateMapping";
         _repository.ExecuteWithoutReturn(procedureName, dmViewMode.SourceStudyName, dmViewMode.SourceScenarioName, dmViewMode.TargetStudyName, dmViewMode.TargetScenarioName, dmViewModel.newPrj, dmViewModel.mappingType);

         return Json(new { success = true, responseText = "Executed successfuly!" });
     }
     catch (Exception ex)
     {
         throw ex;
     }
}

Index View:

        function DuplicateMapping(sourceStudy, sourceScenario, targetStudy, targetScenario, selectedT) {
            var actionUrl = "@Url.Action("ExecuteDuplicateMapping", "Map")";
            $.ajax({
                type: 'POST',
                url: actionUrl,
                dataType: 'json', 
                data: {
                    SourceStudyName: sourceStudy,
                    SourceScenarioName: sourceScenario,
                    TargetStudyName: targetStudy,
                    TargetScenarioName: targetScenario,
                    TargetProjectName: selectedT
                },
                success: function (response) {
                    if (response.success) {
                        alert(response.responseText);
                    }
                },
                error: function (xhr, ajaxOptions, thrownError) {
                    alert("Error!");
                }
            });
        }

thank you so much