COMM/Function.cs

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using System;
using System.Collections.Generic;
using System.Web;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Web.Security;
using System.Data.OleDb;

namespace Ftion
{
    public class Function
    {
        /// <summary>
        /// 截取字符串
        /// </summary>
        /// <param name="strValue"></param>
        /// <param name="Len"></param>
        /// <returns></returns>
        public static string CheckStr(object strValue, int Len)
        {
            return (strValue.ToString().Length > Len) ? strValue.ToString().Substring(0, Len) + ".." : strValue.ToString();
        }
        /// <summary>
        /// 将指定路径中的文件内容读出来 以字符串形式返回
        /// </summary>
        /// <param name="filenam">文件相对路径</param>
        /// <returns></returns>
        public static string ReadFiles(string filePath)
        {
            if (File.Exists(filePath))
            {
                //读取文本　
                StreamReader sr = new StreamReader(filePath, System.Text.Encoding.Default);
                string str = sr.ReadToEnd();
                sr.Close();
                return str;
            }
            else
                return "";
        }
        /// <summary>
        /// 上传图片
        /// </summary>
        /// <param name="fileUp">上传控件</param>
        /// <param name="fileExtension">上传文件类型</param>
        public static int UpFile(System.Web.UI.Page page, System.Web.UI.WebControls.FileUpload fileUp, string fileExtension, string strNewName)
        {
            //上传结果 0未知 1成功  -1文件格式有误 -2文件太大
            int strValue = 0;
            string fileName = fileUp.FileName;
            FileInfo fileinfo = new FileInfo(fileName);
            switch (fileExtension)
            {
                case "img":
                    if (fileinfo.Extension.ToLower() == ".gif" || fileinfo.Extension.ToLower() == ".jpg")
                    {
                        if (fileUp.PostedFile.ContentLength <= Convert.ToInt64(Common.GetMes.GetConfigAppValue("ImageSize")))
                        {
                            UpLoadFile(page, fileUp, Common.GetMes.GetConfigAppValue("AdImgURL"), strNewName);