Fields属性查询

/// <summary>
        /// 根据Fields进行属性查询
        /// </summary>
        /// <param name="FeaClass">要素集</param>
        /// <param name="QueryKeyWords">查询关键字</param>
        /// <returns></returns>
        public List<IFeature> Query(IFeatureClass FeaClass, string QueryKeyWords)
        {
            ////TODO Field查询语句
            List<IFeature> lstFea = null;
            try
            {
                if (FeaClass == null)
                {
                    return null;
                }

                IField pTmpField = null;
                string sWhereExpress = "";

                //// 遍历字段 获得查询条件
                for (int i = 0; i < FeaClass.Fields.FieldCount; i++)
                {
                    pTmpField = FeaClass.Fields.get_Field(i);

                    if (pTmpField.Type != esriFieldType.esriFieldTypeString)
                    {
                        continue;
                    }

                    sWhereExpress += string.Format("{0} LIKE '%{1}%' OR ", pTmpField.Name, QueryKeyWords);
                }

                sWhereExpress = sWhereExpress.Substring(0, sWhereExpress.LastIndexOf("OR") - 1);
                IQueryFilter pQueryFilter = new QueryFilterClass();
                pQueryFilter.WhereClause = sWhereExpress;
                IFeatureCursor pFeaCursor = FeaClass.Search(pQueryFilter, false);
                IFeature pFea = pFeaCursor.NextFeature();

                while (pFea != null)
                {
                    lstFea.Add(pFea);
                    pFea = pFeaCursor.NextFeature();
                }
            }
            catch (Exception ex)
            {
                return null;
            }
            return lstFea;

        }