孔令星 - 博客园

2011年6月29日

                //读取下载的文件流
                if (fileStream.CanRead)
                {
                    int length;
                    byte[] buffer = new byte[10000];
                    length = fileStream.Read(buffer, 0, 10000);
                    long dataToRead = fileLength;
                    if (!Directory.Exists(@"c:\downFile"))
                    {
                        Directory.CreateDirectory(@"c:\downFile");
                    }
                    FileStream fstr = new FileStream(@"c:\downFile\" + _FileName, FileMode.Create, FileAccess.Write);

                    fstr.Write(buffer, 0, length);
                    fstr.Close();
                    MessageBox.Show(@"File has been downloaded to c:\downFile\! ",
        "RHDB - about Attachment", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                }

posted @ 2011-06-29 10:12 孔令星阅读(93) 评论(0) 编辑

2010年12月30日

获取文件信息

HttpPostedFileBase f = Request.Files["txtFile"];

HttpFileCollection collection = System.Web.HttpContext.Current.Request.Files;

posted @ 2010-12-30 11:37 孔令星阅读(36) 评论(0) 编辑

2010年12月21日

Dictionary 排序

          var collection = charts.OrderByDescending(item => item.Value).Take(10).ToList();
            Dictionary<string, int> dictionary = new Dictionary<string, int>();
            foreach (var item in collection)
            {
                dictionary.Add(item.Key, item.Value);
            }

posted @ 2010-12-21 17:19 孔令星阅读(80) 评论(0) 编辑

2010年12月14日

checkBox 获取选中的值

//获取角色的ID
function getRoleID(checkBoxName) {
    var selectRoleID = "";
    $("input[name='" + checkBoxName + "']").each(
                function() {
                    if ($(this).attr('checked') == true) {
                        selectRoleID += $(this).val() + ",";
                    }
                }
            );
    return selectRoleID;
}

$("input[type='checkbox']:checked").attr("value");

posted @ 2010-12-14 09:57 孔令星阅读(10) 评论(0) 编辑

2010年11月27日

(转)序列化与反序列化的初步学习

代码

//写入文件
FileStream fs =new FileStream(@"E:\TK.txt", FileMode.Create);
StreamWriter sw =new StreamWriter(fs, System.Text.Encoding.UTF8);
sw.Write(this.TextBox1.Text);
sw.Close();
sw.Dispose();
fs.Close();
//读取文件
using (FileStream fs =new FileStream(@"F:\Tddd.txt", FileMode.Open))
{
StreamReader sr =new StreamReader(fs, System.Text.Encoding.UTF8);
this.TextBox2.Text = sr.ReadToEnd();
sr.Close();
sr.Dispose();
}

1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Web;
5 using System.Web.UI;
6 using System.Web.UI.WebControls;
7 using System.Runtime.Serialization.Formatters.Binary;
8 using System.Xml.Serialization;
9
10
11 using System.IO;
12
13 publicpartialclass _Default : System.Web.UI.Page
14 {
15 privatestring strFile =@"F:\Book.data";
16 privatestring xmlFile =@"F:\Book.xml";
17 // private string soapFile = @"F:\Book.soap";
18 protectedvoid Page_Load(object sender, EventArgs e)
19 {
20
21 Book book =new Book();
22 book.ID =1;
23 book.BookName ="C#序列化学习";
24 book.BookPrice =52.66;
25 SerializeEntity(book);
26 Book b = DeSerializeEntity();
27 Response.Write("实体:"+ b.BookPrice);
28
29
30 SerializeableXML(book);
31
32 Book bookXml = DeserializeableXML();
33 Response.Write("XML:"+book.BookName);
34 }
35
36 ///<summary>
37 /// 序列化实体
38 ///</summary>
39 ///<param name="book"></param>
40 publicvoid SerializeEntity(Book book)
41 {
42 using (FileStream fs =new FileStream(strFile, FileMode.Create))
43 {
44 BinaryFormatter bf =new BinaryFormatter();
45 bf.Serialize(fs, book);
46 }
47 }
48
49
50 ///<summary>
51 /// 反序列化实体
52 ///</summary>
53 ///<returns></returns>
54 public Book DeSerializeEntity()
55 {
56 Book book;
57 using (FileStream fs =new FileStream(strFile, FileMode.Open))
58 {
59 BinaryFormatter bf =new BinaryFormatter();
60 book = (Book)bf.Deserialize(fs);
61 }
62 return book;
63 }
64
65 ///<summary>
66 /// 序列化XML
67 ///</summary>
68 ///<param name="book"></param>
69 publicvoid SerializeableXML(Book book)
70 {
71 using (FileStream fs =new FileStream(xmlFile, FileMode.Create))
72 {
73 XmlSerializer xs =new XmlSerializer(typeof(Book));
74 xs.Serialize(fs, book);
75 }
76 }
77
78 ///<summary>
79 /// 反序列化XML
80 ///</summary>
81 ///<returns></returns>
82 public Book DeserializeableXML()
83 {
84 Book book =new Book();
85 using (FileStream fs =new FileStream(xmlFile, FileMode.Open))
86 {
87 XmlSerializer xs =new XmlSerializer(typeof(Book));
88 book = (Book)xs.Deserialize(fs);
89 }
90 return book;
91 }
92
93 }
94

posted @ 2010-11-27 23:46 孔令星阅读(14) 评论(0) 编辑