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
 
- Sharepoint 2013 : Community portals and sites - Adding users to community sites
- Microsoft Visio 2010 : Adding Structure to Your Diagrams - Formatting Containers, Sizing Containers
- Microsoft Powerpoint 2010 : Extending PowerPoint with Third-Party Software - Getting Creative with Third-Party Templates, Backgrounds, and Clip Art
- Windows Server 2012 : Deploying Dynamic Access Control (part 4) - Validating the Configuration
- Sharepoint 2013 : Installing and Configuring Windows Azure Workflow Server (part 3) - Testing and Verifying the Workflow Installation
- Microsoft Project 2010 : Setting Up Project for Your Use - Defining Calendars (part 2) - Setting Project and Resources Calendar
- Installing Exchange Server 2010 : Graphical User Interface Setup
- Sharepoint 2013 : Welcome to the Central Administration Web Site (part 4) - General Application Settings, Apps, Navigation
- Overview of Oauth in Sharepoint 2013 : Application Authentication (part 2) - Managing Tokens in Your Application
- Sharepoint 2013 : Upgrading to Sharepoint 2013 - Upgrade Considerations (part 1) - What You Can Upgrade
 
 
Top 10
 
- Microsoft Project 2010 : Setting Up Project for Your Use - Defining Custom Fields
- Microsoft Project 2010 : Setting Up Project for Your Use - Defining Calendars (part 2) - Setting Project and Resources Calendar
- Microsoft Project 2010 : Setting Up Project for Your Use - Defining Calendars (part 1) - Calendar Hierarchy , Modifying and Defining Base Calendars
- Windows Phone 8 : Receiving Input with Buttons - Check Box
- Windows Phone 8 : Receiving Input with Buttons - Radio Button
- Windows Phone 8 : Receiving Input with Buttons - Repeat and Toggle Buttons
- Windows Phone 8 : Receiving Input with Buttons - Tap and Click Events, Button Click Mode, Hyperlink Button
- Windows Phone 8 : Receiving Input with Buttons
- Windows Phone 8 : Content Controls - Defining the Default Content Property
- Windows Phone 8 : Control Type Taxonomy - Identifying Controls Not Supported or Absent in Windows Phone