string sqlWhere;
if (false == string.IsNullOrEmpty(Request["Nkyes"]))
{
string Nkyes = Request["Nkyes"];
Utility.sqlGL(Nkyes);
sqlWhere = "channel_id=2 and title like '%" + Nkyes + "%'";
}
CurrentPage = string.IsNullOrEmpty(Page.Request.QueryString["Page"]) ? 1 : int.Parse(Page.Request.QueryString["Page"]);

pager = new PagerHelper(SqlHelper.ConnectionString, "dt_article", "add_time", true, "*", PageSize, CurrentPage, false, sqlWhere);

运行时，出现错误“使用了未赋值的局部变量sqlWhere”

解决方法：

将声明变量时的语句改为：string sqlWhere="";