protected void BindData()
{
ExtendBLL.ResearchArticle rp = new ExtendBLL.ResearchArticle();
string title = ArticleTitle.Text.Trim();
DateTime startTime = DateTime.MinValue;
DateTime endTime = DateTime.MinValue;
DateTime.TryParse(StartTime.Text, out startTime);
DateTime.TryParse(EndTime.Text, out endTime);
DataSet ds = rp.Search(title,
startTime.Equals(DateTime.MinValue) ? new Nullable<DateTime>() : startTime,
endTime.Equals(DateTime.MinValue) ? new Nullable<DateTime>() : endTime
);
GridViewArticleList.DataSource = ds.Tables[0].DefaultView;
GridViewArticleList.DataBind();
}
