public DataTable SearchArticles(DAArticles article)
      {

          DataTable dt = new DataTable();
          string articleType = article.ArticleType;
          SqlDataAdapter da = new SqlDataAdapter("select a.ArticlType,a.ArticleDesc,a.CDate,a.Time,l.Username from Articles a inner join Login l on l.LoginId=a.LognId where ArticlType like'" + articleType+"%'", con);
          da.Fill(dt);
          return dt;
      }
 public int InsertPostArticle(DAArticles article)
   {
       con.Open();
    
       SqlCommand cmd = new SqlCommand("insert into Articles values(@ArticleId,@ArticlType,@ArticleDesc,@CDate,@Time,@LognId)",con);
       cmd.Parameters.AddWithValue("@ArticleId",article.ArticleId);
       cmd.Parameters.AddWithValue("@ArticlType",article.ArticleType);
       cmd.Parameters.AddWithValue("@ArticleDesc",article.Description);
       cmd.Parameters.Add("@CDate",SqlDbType.Date).Value=article.date;
        cmd.Parameters.Add("@Time",SqlDbType.Time).Value=article.Time;
        cmd.Parameters.AddWithValue("@LognId", article.LoginId);
       int i = cmd.ExecuteNonQuery();
       con.Close();
       return i;
   }