<%@ Page Language=”VB” %>
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd“>
<script runat=”server”>
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Label1.Text = WebConfigurationManager.AppSettings(TextBox1.Text)
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
If Not Page.IsPostBack Then
DropDownList1.DataSource = WebConfigurationManager.AppSettings.Keys
DropDownList1.DataBind()
TextBox2.Text = WebConfigurationManager.AppSettings(DropDownList1.SelectedValue)
End If
End Sub
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)
TextBox2.Text = WebConfigurationManager.AppSettings(DropDownList1.SelectedValue)
End Sub
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs)
‘1, 寫入Runtimeg設定
‘WebConfigurationManager.AppSettings.Set(DropDownList1.SelectedValue, TextBox2.Text)
‘2, 修改Web.config
‘2-1, 開啟web.config
Dim cfg As System.Configuration.Configuration = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath)
‘2-2, 修改設定
cfg.AppSettings.Settings(DropDownList1.SelectedValue).Value = TextBox2.Text
‘2-3, 存檔
cfg.Save()
End Sub
Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs)
‘1, 開啟web.config
Dim cfg As System.Configuration.Configuration = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath)
‘2, 取得appSettings設定區段
Dim cs As ConfigurationSection = cfg.GetSection(“appSettings”)
‘3, 判斷是否有加密過, 以決定加密或解密
If cs.SectionInformation.IsProtected Then
cs.SectionInformation.UnprotectSection()
Response.Write(“已解密…”)
Else
cs.SectionInformation.ProtectSection(“DataProtectionConfigurationProvider”)
Response.Write(“已加密…”)
End If
‘4, 存檔
cfg.Save()
End Sub
</script>
<html xmlns=”http://www.w3.org/1999/xhtml” >
<head runat=”server”>
<title>Untitled Page</title>
</head>
<body>
<form id=”form1″ runat=”server”>
<div>
key :
<asp:TextBox ID=”TextBox1″ runat=”server”></asp:TextBox>
<asp:Button ID=”Button1″ runat=”server” OnClick=”Button1_Click” Text=”Get Value” />
<asp:Label ID=”Label1″ runat=”server” Text=”Label”></asp:Label><br />
<br />
<br />
keys :
<asp:DropDownList ID=”DropDownList1″ runat=”server” AutoPostBack=”True” OnSelectedIndexChanged=”DropDownList1_SelectedIndexChanged”>
</asp:DropDownList>
<asp:TextBox ID=”TextBox2″ runat=”server”></asp:TextBox>
<asp:Button ID=”Button2″ runat=”server” Text=”修改” OnClick=”Button2_Click” />
<asp:Button ID=”Button3″ runat=”server” OnClick=”Button3_Click” Text=”加密/解密” /></div>
</form>
</body>
</html>