private void btnKeywords_Click(object sender, EventArgs e)
{
string document = string.Empty;
if (chkDocument.Checked == true)
{
document = txtDocument1.Text.Trim() + " " + txtDocument2.Text.Trim();
} else
{
document = txtDocument1.Text.Trim();
}
string result = clas.keywords(document);
// var jsonString = Newtonsoft.Json.JsonConvert.SerializeObject(result);
dynamic response = JsonConvert.DeserializeObject(result);
List Kewordlist = response.keywords.ToObject
>();
//List