---
source_files:
  - DataPRO/Modules/Groups/GroupList/View/GroupListView.xaml.cs
generated_at: "2026-04-17T16:47:04.094415+00:00"
model: "zai-org/GLM-5-FP8"
schema_version: 1
sha256: "1c720369523e38e0"
---

# GroupListView Documentation

## 1. Purpose

`GroupListView` is a WPF view component that provides a sortable, filterable list interface for displaying groups. It serves as the code-behind for `GroupListView.xaml` and implements `IGroupListView`. The view handles user interactions—column header clicks for sorting, search input for filtering, and mouse double-clicks for item selection—delegating all business logic to an `IGroupListViewModel` via the `DataContext`.

---

## 2. Public Interface

### `GroupListView()` (Constructor)
**Signature:** `public GroupListView()`

Initializes the view component by calling `InitializeComponent()`, which loads the associated XAML layout.

### `IGroupListView` (Implemented Interface)
The class implements `IGroupListView` from `DTS.Common.Interface.Groups.GroupTemplateList`. The specific interface members are not visible in this source file.

### Private Event Handlers (wired to XAML events)

| Method | Signature | Behavior |
|--------|-----------|----------|
| `ListViewHeader_Click` | `void ListViewHeader_Click(object sender, RoutedEventArgs e)` | Extracts the clicked `GridViewColumnHeader` from `e.OriginalSource`, retrieves `IGroupListViewModel` from the header's `DataContext`, and calls `viewModel.Sort(colHeader.Tag, true)`. |
| `GridViewColumnHeaderSearchable_OnSearch` | `void GridViewColumnHeaderSearchable_OnSearch(object sender, RoutedEventArgs e)` | Extracts search term from `e.OriginalSource` (cast to `string`), retrieves column tag from `sender`, and calls `vm.Filter(columnTag, searchTerm)` on the view model. |
| `GridViewColumnHeader_OnClick` | `void GridViewColumnHeader_OnClick(object sender, RoutedEventArgs e)` | Handles sorting for searchable column headers. Retrieves column tag either directly from `sender` or by traversing the visual tree via `Utils.FindChild<GridViewColumnHeaderSearchable>`, then calls `vm.Sort(columnTag, true)`. |
| `MouseDoubleClick` | `void MouseDoubleClick(object sender, MouseButtonEventArgs e)` | Determines which ListView item is under the mouse cursor using hit-testing, validates the index is within bounds, and