Office
 

Microsoft Visio 2010 : Displaying the rule for a selected issue

1/14/2012 11:28:59 AM
The built-in Issues window, which is opened from the Diagram Validation group on the Process tab, provides an existing method for a user to select an issue. Therefore we can synchronize the selected rule in the Rules Explorer whenever an issue is selected. This enables the rules developer to analyze the expressions used.

Actually, the Issues window does not cause any events at all, but it does select the target shape or page whenever an issue is selected in the window.

Thus, we can use the Application.Window_SelectionChanged() event to test if the Issues window is open. If it is, then the selected issue ID is sent into the veApplication.SetSelectedIssue() method.

private void Window_SelectionChanged(Visio.Window Window)
{
//Check the selected Issue
Visio.Window winIssues = Window.Windows.get_ItemFromID( (short)Visio.VisWinTypes.visWinIDValidationIssues);
if (winIssues.Visible == false)
{
selectedIssueID = -1;
veApplication.SetSelectedIssue(Window.Document.ID, null);
}
else
{
if (winIssues.SelectedValidationIssue != null)
{
selectedIssueID = winIssues.SelectedValidationIssue.ID;
veApplication.SetSelectedIssue(Window.Document.ID,
selectedIssueID);
}
else
{
selectedIssueID = -1;
veApplication.SetSelectedIssue(Window.Document.ID, null);
}
}
}



The VEApplication.SetSelectedIssue() method then gets the correct VEDocument object, and passes the issue ID through to it via the selectedVEDocument.SetSelectedIssue(issue) method.

public void SetSelectedIssue(int? docid, int? issue)
{
if (docid.HasValue && this.VEDocuments.Count() > 0)
{
selectedVEDocument = this.VEDocuments.Single(doc => doc.ID == docid);
selectedVEDocument.SetSelectedIssue(issue);
}
else
{
selectedVEDocument = null;
}
}

Finally, the VEDocument object sets the SelectedVEIssue property by selecting it from the VEIssues collection. This sets the IsSelected property of all VERuleSet and VERule objects before setting the IsSelected property of VERuleSet and VERule of the selected issue to true.

public void SetSelectedIssue(int? iss)
{
if (iss.HasValue)
{
this.SelectedVEIssue = this.VEIssues.Single( issu => issu.ID == iss);
selectedVEIssue.IsSelected = true;
var results = from rls in this.VERuleSets select rls;
foreach (VERuleSet rls in results)
{
rls.IsSelected = false;
rls.UnSelect();
}
this.SelectedVERuleSet = this.VERuleSets.Single( rs => rs.ID == selectedVEIssue.Rule.RuleSet.ID);
selectedVERuleSet.IsSelected = true;
this.SelectedVERule = selectedVERuleSet.VERules.Single( rl => rl.ID == selectedVEIssue.Rule.ID);
selectedVERule.IsSelected = true;
}
else
{
this.SelectedVEIssue = null;
this.SelectedVERuleSet = null;
this.SelectedVERule = null;
}
}



Now, because the IsSelected property of the tree view items are bound to the IsSelected property of the underlying objects, the UI instantly reacts and displays the details of the rule for the selected issue in the Issues window.

For example, the UserControlExplorer.xaml file contains the HierarchicalDataTemplate for the rule. This definition does not contain any binding for the TreeViewItem because it merely describes the UI elements for the item. In order to set the binding for the item, and to vary the colors when it is selected, you can define a Style with the TargetType="{x:Type TreeViewItem}" attribute. This style will automatically be applied to each TreeViewItem as follows:

<Style TargetType="{x:Type TreeViewItem}">
<Setter Property="Background" Value="Transparent" />
<Setter Property="Foreground" Value="Black" />
<Setter Property="IsExpanded" Value="{Binding Path=IsExpanded}" />
<Setter Property="IsSelected" Value="{Binding Path=IsSelected}" />
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsSelected}" Value="True">
<Setter Property="Background" Value="Black" />
<Setter Property="Foreground" Value="White" />
</DataTrigger>
</Style.Triggers>
</Style>
<HierarchicalDataTemplate x:Key="RuleTemplate"
DataType="{x:Type localVM:VERule}" >
<StackPanel Orientation="Horizontal"
ToolTip="{StaticResource ResourceKey=RuleToolTip}">
<Image Source="..\Images\IssueTracking_32x32.png"
Style="{StaticResource ResourceKey=ImageStyle}" />
<TextBlock Text="{Binding Path=DisplayName}"
Style="{StaticResource ResourceKey=TreeItemStyle}" />
</StackPanel>
</HierarchicalDataTemplate>
 
Others
 
- Accessing PowerPoint on the Web and Mobile Devices (part 2) - Setting SkyDrive Permissions
- Accessing PowerPoint on the Web and Mobile Devices (part 1) - Setting Up SkyDrive
- Microsoft PowerPoint 2010 : Managing Themes
- Microsoft Excel 2010 : Printing in Excel - Adjusting Page Margins & Inserting Page Breaks
- Microsoft Excel 2010 : Setting the Print Area
- Microsoft Outlook 2010 : Setting Up Mobile Alerts for Important Messages
- Microsoft Outlook 2010 : Setting Up Calendar Alerts
- Microsoft OneNote 2010 : Searching for Stray Notes (part 2)
- Microsoft OneNote 2010 : Searching for Stray Notes (part 1)
- Microsoft PowerPoint 2010 : Managing Slide Masters
- Microsoft PowerPoint 2010 : Customizing and Creating Layouts
- Microsoft Access 2010 : Introducing Query Types & Creating a Query Using the Query Wizard
- Microsoft Word 2010 : Creating Different Headers or Footers for Odd and Even Pages
- Microsoft Word 2010 : Editing a Header or Footer
- Microsoft PowerPoint 2010 : Working with Placeholders
- Microsoft PowerPoint 2010 : Changing the Background
- Microsoft Excel 2010 : Using Print Preview
- Microsoft Excel 2010 : Using Excel with the Normal Distribution - The Central Limit Theorem
- Microsoft Outlook 2010 : Configuring Mobile Alert Settings for Exchange Server Accounts
- Microsoft Outlook 2010 : Configuring the Exchange Server Client - Configuring Security Properties & Configuring Connection Properties
 
 
Most View
 
- Windows 8 : Wireless Connections (part 1) - To switch wireless networks
- Sharepoint 2013 : Community portals and sites - Assigning badges to members
- SQL Server 2012 : Backup and Recovery Planning - Recovery Models (part 2) - Simple Recovery Model, The Full Recovery Model
- Windows 8 : Using the Control Panel Items (part 7) - Device Stage, Display
- Windows 7 : Hardware and Software Compatibility (part 5) - Windows Virtual PC and XP Mode - Understanding Windows Virtual PC
- Active Directory 2008 : Configuring Active Directory Certificate Services (part 3) - Revoking Certificates
- Windows Server 2008 R2 high-availability and recovery features : Introduction to High Availability
- Microsoft Lync Server 2013 Edge Server : Edge Server Administration (part 4) - Managing Public Providers
- Sharepoint 2013 : Community portals and sites - Creating a community site subsite
- Windows Server 2012 Technology Primer : Windows Server 2012 Defined - Windows Server 2012 Under the Hood
 
 
Top 10
 
- Microsoft OneNore 2010 : Distributing Your Notes - Transferring a Notebook to Another Computer
- Microsoft OneNore 2010 : Distributing Your Notes - Saving Pages, Sections, and Notebooks in Alternative File Formats
- Microsoft OneNore 2010 : Distributing Your Notes - Emailing a Page
- Microsoft OneNore 2010 : Distributing Your Notes - Printing a Section
- Microsoft Exchange Server 2010 Requirements : Additional Requirements
- Microsoft Exchange Server 2010 Requirements : Software Requirements (part 2) - Windows Server Roles and Features
- Microsoft Exchange Server 2010 Requirements : Software Requirements (part 1) - Additional Software
- Microsoft Exchange Server 2010 Requirements : Getting the Right Server Hardware (part 3) - Disk Requirements
- Microsoft Exchange Server 2010 Requirements : Getting the Right Server Hardware (part 2) - Memory Recommendations, Network Requirements
- Microsoft Exchange Server 2010 Requirements : Getting the Right Server Hardware (part 1) - The Typical User , CPU Recommendations