歡迎~ 程式設計 學生 作業 專題製作 程式外包 家教...

開始動手吧，先做一個操作用的網頁並且在上面放兩個按鈕，
一個用來加密字串一個用來解密字串，然後在按鈕的Click事件中寫入下面的程式。

    protected void Encryption(object sender, EventArgs e)
    {

        Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
        ConfigurationSection section = config.ConnectionStrings;
       
        if (!section.SectionInformation.IsProtected)
        {
            section.SectionInformation.ProtectSection("DataProtectionConfigurationProvider");
            section.SectionInformation.ForceSave = true;
            config.Save(ConfigurationSaveMode.Modified);
        }
    }

    protected void Decrypting(object sender, EventArgs e)
    {
        Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
        ConfigurationSection section = config.ConnectionStrings;
       
        if (section.SectionInformation.IsProtected)
        {
            section.SectionInformation.UnprotectSection();
            section.SectionInformation.ForceSave = true;
            config.Save(ConfigurationSaveMode.Modified);
        }
    }

資料來源:http://www.purecs.net/thread/topic402_1.aspx