这篇是针对上一篇讲序列化的文章的一个实际案例，WinForm程序的主界面如下：
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" 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思路：在点击保存按钮时，将标题和内容保存到集合中，自然想到应该是Dictionary<K,V>，而且用这个集合可以避免产生2个相同标题的日记。对添加到集合中的数据，采用二进制序列化到文件中，在程序执行目录中专门建一个“Notes”的文件夹存放日记文件，日记文件的文件名以标题命名。程序加载的时候，如果“Notes”文件夹下有文件，就在右侧列表中加载文件，点击时反序列化后显示在左侧。下面是具体代码：
在Form1类下定义一个集合：
Dictionary<string, string> dic = new Dictionary<string, string>();
“保存”按钮的点击操作代码如下：
var sTitle = txtTitle.Text.Trim();
var sContent = txtContent.Text.Trim(); dic.Add(sTitle, sContent); string fullPath = Path.Combine("Notes", sTitle + ".txt");
using (FileStream fsWrite=new FileStream(fullPath,FileMode.Create,FileAccess.Write))
{
//进行二进制序列化
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(fsWrite, dic);
MessageBox.Show("添加日记成功");
}
在Form1_Load中的事件处理代码如下：
string sPath1 = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
string sPath2 = "Notes";
string fullPath1 = Path.Combine(sPath1, sPath2);
string[] strFiles = Directory.GetFiles(fullPath1, "*.txt"); if (strFiles.Length>)
{
foreach (string item in strFiles)
{
var s = Path.GetFileName(item);
listBox1.Items.Add(s);
}
}
在listBox1_SelectedValueChanged中的事件处理代码如下：
if (listBox1.SelectedItem!=null)
{
var FileName = listBox1.SelectedItem.ToString();
var fullPath2 = Path.Combine("Notes", FileName);
using (FileStream fsRead=new FileStream(fullPath2,FileMode.Open,FileAccess.Read))
{
BinaryFormatter bf1 = new BinaryFormatter();
//进行二进制反序列化
Dictionary<string, string> dic2 = bf1.Deserialize(fsRead) as Dictionary<string, string>;
foreach (KeyValuePair<string,string> item in dic2)
{
txtTitle.Text = item.Key;
txtContent.Text = item.Value;
}
}
}
else
{
MessageBox.Show("请选择要查看的文件");
}
总结：
程序还有些Bug，因为主要的重点是放在序列化的使用上，日后如果有时间再完善功能吧。
1.对于新添加的日记，需要在下一次程序启动中才会加载到右侧listBox中（想法是做到保存后就加载到listBox）；
2.对于日记的修改，修改内容后，点击保存，可适时看到修改的变化；而如果把标题和内容都修改了，程序则认为是一个全新的日记（Dictionary集合会因为key的不同，而重新添加）。