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ASP.NET入門教程 11.6.2 存儲首選項[1]

2013-11-13 12:18:07  來源: .NET編程 

    本章中還有最後一個可以實際操作的示例並且這將返回到回顧第章中的討論在第章中和頁面樣式以及CSS一起您學習了存儲主題中的布局和樣式首選項的概念可以在每頁的基礎上切換這些主題如同在第章中討論的那樣然而也可以在用戶配置文件中存儲有關用戶可能傾向於對站點使用哪種主題的數據並且允許用戶稍微個人化他們的查看體驗在下面的試一試練習中將會在Wrox United應用程序中包括這個功能

    ()將下面突出顯示的代碼行添加到FanClubaspx頁面

 

</tr><tr>

              <td> Membership Alias:</td>

              <td><asp:TextBox ID=txtAlias runat=server />

                <asp:RequiredFieldValidator ID=RequiredFieldValidator runat=server ControlToValidate=txtAlias

                  Text=* ErrorMessage=You must enter a value for the membership alias />

              </td>

            </tr>

            <tr>

              <td>Theme:</td>

              <td><asp:DropDownList ID=ThemeList runat=server>

                  <asp:ListItem Text=Default Value= />

                  <asp:ListItem Text=Wrox Red Value=WroxRed />

                  <asp:ListItem Text=Wrox Blue Value=WroxBlue />

                </asp:DropDownList>

              </td>

            </tr>

    ()其他困難的部分是添加一些代碼用於在用戶的配置文件中存儲和檢索主題首選項修改FanClubaspxvb將下面突出顯示的代碼行包括在btnSaveChanges_Click事件處理程序中

 

 Sub btnSaveChanges_Click(ByVal sender As Object ByVal e As SystemEventArgs)

       

        ProfileName = CType(FCLoginViewFindControl(txtName) TextBox)Text

        ProfileAddress = CType(FCLoginViewFindControl(txtAddress) TextBox)Text

        ProfileCity = CType(FCLoginViewFindControl(txtCity) TextBox)Text

        ProfileCounty = CType(FCLoginViewFindControl(txtCounty) TextBox)Text

        ProfilePostCode = CType(FCLoginViewFindControl(txtPostCode) TextBox)Text

        ProfileCountry = CType(FCLoginViewFindControl(txtCountry) TextBox)Text

        ProfileMailings = CType(FCLoginViewFindControl(chkMailing) CheckBox)Checked

        ProfileEmail = CType(FCLoginViewFindControl(txtEmail) TextBox)Text

        ProfileMemberName = CType(FCLoginViewFindControl(txtAlias) TextBox)Text

        ProfileTheme = CType(FCLoginViewFindControl(ThemeList) DropDownList)SelectedValue

        ServerTransfer(SiteMapCurrentNodeUrl)

 

    End Sub

    ()現在修改DisplayProfileProperties方法包括在用戶的配置文件中檢索和顯示當前存儲的Theme屬性值的代碼

 

Private Sub DisplayProfileProperties()

 

        Dim NameBox As TextBox = CType(FCLoginViewFindControl(txtName) TextBox)

 

        If Not (NameBox Is Nothing) Then

            CType(FCLoginViewFindControl(txtName) TextBox)Text = ProfileName

            CType(FCLoginViewFindControl(txtAddress) TextBox)Text = ProfileAddress

            CType(FCLoginViewFindControl(txtCity) TextBox)Text = ProfileCity

            CType(FCLoginViewFindControl(txtCounty) TextBox)Text = ProfileCounty

            CType(FCLoginViewFindControl(txtPostCode) TextBox)Text = ProfilePostCode

            CType(FCLoginViewFindControl(txtCountry) TextBox)Text = ProfileCountry

            CType(FCLoginViewFindControl(chkMailing) CheckBox)Checked = ProfileMailings

            CType(FCLoginViewFindControl(txtEmail) TextBox)Text = ProfileEmail

            CType(FCLoginViewFindControl(txtAlias) TextBox)Text = ProfileMemberName

            CType(FCLoginViewFindControl(ThemeList) DropDownList)SelectedValue = ProfileTheme

         End If

 

    End Sub

    在這個階段己經添加所有必要的代碼以存儲首選項剩下的事情是添加在站點的頁面上切換主題的能力

    ASPNET 入門教程完整版  

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From:http://tw.wingwit.com/Article/program/net/201311/15606.html
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