C#判断DataTable某字段是否包含某值

// <summary>
        /// 判断DataTale中判断某个字段中包含某个数据
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="columnName"></param>
        /// <param name="fieldData"></param>
        /// <returns></returns>
        public static Boolean IsIncludeData(DataTable dt, String columnName, string fieldData)
        {
            if(dt==null)
            {
                return false;
            }
            else
            { 
                 if (dt.Select(columnName+"='"+fieldData+"'").Length>0)
                 {
                     return true;
                 }
                 else
                 {
                     return false;
                 }
            }

        }

 2、过滤筛选条件

 DataTable dt = new DataTable();
​​​​​​​DataView dataview = new DataView(dt);
dataview.RowFilter = "Name like'%" + txtName + "%'";