Este artigo aborda: Como o VSTO torna o desenvolvimento em Office mais poderoso Usando WCF, WPF e LINQ em soluções Office Adição fácil de recursos avançados aos seus aplicativos Office Desenvolvendo serviços da forma mais fácil

Este artigo utiliza as seguintes tecnologias: VSTO, WPF, WCF, LINQ

 Conteúdo

A solução de exemplo
Desenvolvendo o serviço WCF
O UserControl WPF
Conectando o UserControl WPF ao VSTO
Consumindo o serviço WCF na solução VSTO
Segurança
Usando LINQ, Xlinq e expressões lambda no VSTO
O futuro dos aplicativos baseados em Office

 Figure 3 Modelo para controles de botões de ligações de dados

<UserControl.Resources>
  <ResourceDictionary>
    <XmlDataProvider x:Key="ItemImages" XPath="ItemImages/ItemImage">
      <x:XData>
        <ItemImages >
          <ItemImage Image="Frangipani.jpg" Width="50"/>
          <ItemImage Image="Toucan.jpg" Width="50"/>
          <!-- etc -->
        </ItemImages>
      </x:XData>
    </XmlDataProvider>
    <uc:ImagePathConverter x:Key="ImagePathConverter" />
  </ResourceDictionary>
</UserControl.Resources>

<Grid>
  <ItemsControl 
  DataContext="{Binding Source={StaticResource ItemImages}}"
  ItemsSource="{Binding}">
    <ItemsControl.ItemsPanel>
      <ItemsPanelTemplate>
        <uc:FishEyePanel/>
      </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>

    <ItemsControl.ItemContainerStyle>
      <Style TargetType="{x:Type ContentPresenter}">
        <Setter Property="ContentTemplate">
          <DataTemplate>
            <Button Name="b1" Click="buttonClick">
              <Image 
Source="{Binding Converter={StaticResource ImagePathConverter}, 
XPath=@Image}"/>
            </Button>
          </DataTemplate>
        </Setter>
      </Style>
    </ItemsControl.ItemContainerStyle>
  </ItemsControl>
</Grid>

 Figure 4 Manipulando o evento de clique FishEye

public partial class FishEyeControl : System.Windows.Controls.UserControl
{
  public event FishEyeEvent FishEyeClickEvent;

  private void buttonClick(object sender, RoutedEventArgs e)
  {
    Button buttonSender = (Button)sender;
    Image buttonImage = (Image)buttonSender.Content;
    ImageSource imageSource = buttonImage.Source;
    String imageName = imageSource.ToString();
    int lastSlash = imageName.LastIndexOf('/') + 1;
    String buttonName = imageName.Substring(
      lastSlash, imageName.Length - lastSlash - ".jpg".Length);

    FishEyeEventArgs fe = new FishEyeEventArgs(buttonName);
    if (FishEyeClickEvent != null)
    {
      FishEyeClickEvent(sender, fe);
    }
  }
}

 Figure 6 Inicialize o controle

private System.Windows.Forms.Integration.ElementHost elementHost;
private WPFFishEye.FishEyeControl fishEye;
public WPFFishEye.FishEyeControl FishEye
{
  get { return fishEye; }
}

private void InitializeComponent()
{
  this.elementHost = 
    new System.Windows.Forms.Integration.ElementHost();
  this.fishEye = new WPFFishEye.FishEyeControl();
  this.elementHost.Dock = System.Windows.Forms.DockStyle.Fill;
  this.elementHost.Child = this.fishEyeControl;
  this.Controls.Add(this.elementHost);
}

 Figure 8 Usando o proxy do lado cliente do serviço WCF

internal ImageServiceClient serviceClient;

private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
  // Connect to the WCF service.
  serviceClient = new ImageServiceClient();

  // (previously discussed code omitted for brevity).
}

private void FishEye_FishEyeClickEvent(object source, FishEyeEventArgs e)
{
  //System.Windows.Forms.MessageBox.Show(e.ButtonName);
  // Invoke the WCF Service and parse the returned XML.
  XmlDocument xmlDoc = new XmlDocument();
  xmlDoc.LoadXml(
    Globals.ThisAddIn.serviceClient.GetDefinition(e.ButtonName));
  String keyText = xmlDoc.SelectSingleNode(
    "descendant::Item/Key").InnerText;
  String definitionText = xmlDoc.SelectSingleNode(
    "descendant::Item/Definition").InnerText;

  // Insert the Key text into the Word document.
  this.Application.Selection.InsertAfter(
    String.Format("{0}{1}{2}",
    Environment.NewLine, keyText, Environment.NewLine));
  object titleStyle = Word.WdBuiltinStyle.wdStyleTitle;
  this.Application.Selection.set_Style(ref titleStyle);

  // Move to the end of the insertion.
  object gotoItem = Word.WdGoToItem.wdGoToLine;
  object gotoDirection = Word.WdGoToDirection.wdGoToLast;
  this.Application.Selection.GoTo(
    ref gotoItem, ref gotoDirection, ref missing, ref missing);

  // Insert the Definition text into the Word document.
  Word.Range insertionStart = this.Application.Selection.Range;
  this.Application.Selection.InsertAfter(
    String.Format("{0}{1}", definitionText, Environment.NewLine));
  object headingStyle2 = Word.WdBuiltinStyle.wdStyleHeading2;
  this.Application.Selection.set_Style(ref headingStyle2);
}