[Expand]General Information
[Expand]WinForms Controls
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Collapse]WPF Controls
 [Expand]What's Installed
 [Expand]Common Concepts
 [Expand]MVVM Framework
 [Collapse]Controls and Libraries
  [Collapse]Data Grid
   [Expand]Getting Started
   [Expand]Implementation Details
   [Expand]Grid View Data Layout
   [Expand]Binding to Data
   [Expand]Master-Detail Data Representation
   [Expand]Data Editing and Validation
   [Expand]Filtering and Searching
   [Expand]Data Summaries
   [Expand]Paging and Scrolling
   [Expand]Focus and Navigation
   [Expand]Conditional Formatting
   [Expand]Appearance Customization
   [Expand]MVVM Enhancements
   [Expand]Printing and Exporting
   [Expand]End-User Interaction
     Saving and Restoring Layout
     Hit Information
   [Expand]Performance Improvement
   [Expand]Design-Time Features
   [Expand]Visual Elements
   [Expand]End-User Capabilities
  [Expand]Ribbon, Bars and Menu
  [Expand]Charts Suite
  [Expand]Pivot Grid
  [Expand]Rich Text Editor
  [Expand]Tree List
  [Expand]Gauge Controls
  [Expand]Map Control
  [Expand]Layout Management
  [Expand]Windows Modern UI
  [Expand]Data Editors
  [Expand]Navigation Controls
  [Expand]Spell Checker
  [Expand]Property Grid
  [Expand]PDF Viewer
  [Expand]TreeMap Control
  [Expand]Diagram Control
  [Expand]Windows and Utility Controls
   Dialogs, Notifications and Panels
  [Expand]Scheduler (legacy)
 [Expand]Scaffolding Wizard
  Redistribution and Deployment
  Get More Help
 [Expand]API Reference
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Office File API
[Expand]Report and Dashboard Server
[Expand]eXpressApp Framework
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

Hit Information

Hit testing allows you to recognize which element is located at the specified screen coordinates. For instance, you may have to determine which part of a View a user has clicked or double-clicked. To obtain this information, use the TableView.CalcHitInfo method (CardView.CalcHitInfo in a card view, TreeListView.CalcHitInfo in a treelist view). This method accepts a test dependency object and returns the hit info object, containing information about the test object's position within a view.

Each type of View provides its own hit info object (see the table below):

Hit Info Object Description
GridViewHitInfoBase Serves as the base for classes providing information about a specific object within a View.
TableViewHitInfo Contains the information about a specific object within a table view.
CardViewHitInfo Contains the information about a specific object within a card view.
TreeListViewHitInfo Contains the information about a specific object within a treelist view.

Properties provided by hit info objects allow you to obtain:

To get Hit-Test information of a detail grid, call master grid methods.

Expanded Example

This example shows how to determine which element in a table view is located under the mouse pointer.

Is this topic helpful?​​​​​​​