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  • asp.net删除文本编辑器上传的图片

    private string GetImg(string str)
        {
            string res = "";
            string tem = "";
            int startIndex = 0;
            int endIndex = 0;
            for (int i = 0; i < str.Length - 3; i++)
            {
                tem = str.Substring(i, 3).ToLower();
                if (tem == "src")
                {
                    startIndex = i;
                    str = str.Substring(startIndex+5);
                    endIndex = str.IndexOf('>');
                    res = str.Substring(0, endIndex-3);
                    str = str.Substring(endIndex);
                    res += "|"+GetImg(str); //递归调用               
                    break;
                }
            }
            return res;
        }

    protected void dgrdName_ItemCommand(object source, DataGridCommandEventArgs e)
        {
           
            if (e.CommandName == "Delete")
            {
                int id = Convert.ToInt32(e.CommandArgument.ToString());

                string str = "select [content] from news where id="+id+"";
                string content = DB.ReadOut2(str);
                string img=GetImg(content);
                img = img.Substring(0,img.Length-1);
                string [] arr=img.Split('|');
                for (int i = 0; i < arr.Length;i++ )
                {
                  
                    File.Delete(HttpContext.Current.Server.MapPath("/" + arr[i]));
                 
                }
             
               string delstr = "delete  from news where id=" + id + "";
                DB.myCommand(delstr);
                DataBind();

            }
           
        }

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  • 原文地址:https://www.cnblogs.com/zhang9418hn/p/2000115.html
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