asp.net 获取 当前日期时间 及 前后N天日期时间（DropDownList数据绑定）

//今天

DateTime now = DateTime.Now;



//前N天

now.AddDays(-N);



//后N天

now.AddDays(N);



#region Nominate news last ten days

/// <summary>

/// Bind New To Nominate

/// zjf add - 20091222

/// </summary>

protected void BindNewToNominate()

{

int newCount = 0;

DateTime now = DateTime.Now;

DateTime nowAgo = now.AddDays(-10);

ArticleManager artM = new ArticleManager();

List<Article> lart = new List<Article>();

lart = artM.GetList(0, int.MaxValue, "", "UpdateTime between '"+nowAgo+"' and '"+now+"'", "UpdateTime desc", ref newCount);

this.ddl_NewNominate.DataSource = lart;

this.ddl_NewNominate.DataTextField = "Title";

this.ddl_NewNominate.DataValueField = "ArticleId";

this.ddl_NewNominate.DataBind();

}

#endregion