Silverlight+WCF实现一个弹出选择框---Part 2

第六步: 在Silverlight的项目中添加WCF的Service接口:

  首先需要转换WCF服务,编译这个项目,然后在PopFormDemo的Reference部分邮件选择’Add Service Reference’,如下图所示。

 

然后会出现如下的提示框,在Address栏位输入上面的那个测试url,然后点击go,也就是调用了那个WCF Service,同时会生成一个app.config文件来保存地址,绑定信息等。如下图所示:

Pop search form是放在一个Border控件中,所以可以使用Visibility属性来显示或隐藏pop search form,如下图所示:

 

初始状态下,pop search form控件的Visibility=”Collapsed”,如下图:

 

 

 

我在App.xaml文件中定义了Resources。因为每个元素都能够因此访问resources.你也可以再page层定义resources.

第八步:在PopForm.xaml.cs文件中有下面5个主要属性:

        public string DataProvider { get; set; } public string TitleName { get; set; } public string PopId { get; set; } public string PopName { get; set; } public string OpacityValue { get; set; }

DataProvider: It tells which data you would like to show on pop search form
TitleName: Title name on the top of pop search form
PopId: Label ID text on the pop search form
PopName: Label NAME text on the pop search form
OpacityValue: Opacity level for the pop search form

 

如前面所说,这里会有两种方式来显示pop search form:

1.

a.       点击OK按钮:

      private void btnPopEnter_Click(object sender,RoutedEventArgs e) { if (popBoder.Visibility == Visibility.Visible) { PopFormClass pf = dgPop.SelectedItem as PopFormClass; txtId.Text = pf.ID; txtName.Text = pf.NAME; popBoder.Visibility = Visibility.Collapsed; } }

b.       双击Datagrid的某条数据使用MouseClickManager.Assign的doubleclick事件:

 

public PopForm() { InitializeComponent(); this.Loaded += new RoutedEventHandler(PopForm_Loaded); _gridClickManager = new MouseClickManager(200); _gridClickManager.DoubleClick += new MouseButtonEventHandler(ResultSelected); } private void ResultSelected(object sender,MouseButtonEventArgs e) { if (popBoder.Visibility == Visibility.Visible) { PopFormClass pf = dgPop.SelectedItem as PopFormClass; txtId.Text = pf.ID; txtName.Text = pf.NAME; popBoder.Visibility = Visibility.Collapsed; } }   

2.从TextBox来得到:

 

private void txtId_MouseLeave(object sender,MouseEventArgs e) { if (!string.IsNullOrEmpty(txtId.Text)) { var eData = from eFilter in popData where eFilter.ID == txtId.Text select eFilter; if (eData.Count() > 0) { txtName.Text = eData.F<a href="/tag/irs/" target="_blank" class="keywords">irs</a>t().NAME; } else { txtName.Text = string.Empty; } } }   

最后这段代码是用来把WCF的Service结果转换为datagrid的数据源:

        private void dgPop_Loaded(object sender,RoutedEventArgs e) { lblPopTitle.Text = string.IsNullOrEmpty(TitleName) ? "" : TitleName; lblPopId.Text = string.IsNullOrEmpty(PopId) ? "ID: " : PopId; lblPopName.Text = string.IsNullOrEmpty(PopName) ? "NAME: " : PopName; if (!string.IsNullOrEmpty(DataProvider)) { switch (DataProvider) { case "Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>CustomersData": daoWcf = new PopDataServiceClient(); daoWcf.Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>CustomersDataCompleted += new EventHandler<Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>CustomersDataCompletedEventArgs>(daoWcf_Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>CustomersDataCompleted); daoWcf.Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>CustomersDataAsync(); break; case "Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>ProductsData": daoWcf = new PopDataServiceClient(); daoWcf.Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>ProductsDataCompleted += new EventHandler<Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>ProductsDataCompletedEventArgs>(daoWcf_Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>ProductsDataCompleted); daoWcf.Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>ProductsDataAsync(); break; case "Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>EmployeesData": daoWcf = new PopDataServiceClient(); daoWcf.Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>EmployeesDataCompleted += new EventHandler<Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>EmployeesDataCompletedEventArgs>(daoWcf_Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>EmployeesDataCompleted); daoWcf.Get<a href="/tag/sql/" target="_blank" class="keywords">sql</a>EmployeesDataAsync(); break; default: break; } } }   

最后一步是在page.xaml页面添加一个pop search form控件:

 

需要源码的情留下你的email,因为有点大所以就不上传了。