#Clear selected items in windows grid how to

The example also binds the SelectedItemsChangedBehaviour to a command to receive a notification of SelectedItemsChangedEventArgs whenever the selected items collection changes and then display those results in a TextBlock on the view.Īdditionally, both the selected and dropdown list item templates are customized to display an image along with the item name.ĭataTemplate: ĭataTemplate: The example populates the control by binding the ItemsSource property to a collection of type object, that implements IItemEnabledAware and IItemGroupAware. The following example creates an Sdl.MultiSelectComboBox.

#Clear selected items in windows grid how to

The example project demonstrates how to implement the Sdl.MultiSelectComboBox custom control to your project, and provides good examples in understanding the controls behaviours. When the item is selected, the style is updated to reflect a selected state. Items in the Dropdown Menu list can be selected/unselected via the Mouse or Keyboard. When an item is not enabled, then it will not be selectable from the Dropdown Menu list and removed from the Selected Items Panel automatically. Implement IItemEnabledAware to identify whether or not the items are enabled. The item that has focus in the list is selected/unselected. The item that has focus in the list is selected. The item that has selection focus in the list is selected/unselected.Īll items between the previous and current item that has focus are selected. Items can be added or removed from the selected items collection, by selecting them from the items present in the Dropdown Menu list.

The sort order is based on the order of the items in the collection that was received when the ItemsSource is set. In addition to the header name, this interface exposes a property to manage the order in which the group headers are displayed. The items in the collection can be grouped by implementing IItemGroupAware. Move focus away from the control by selecting any other control in the view or by deactivating the parent window.The item that has focus in the list is selected.Change the *Filter Criteria*, by typing characters in the text area.Down arrow key on the keyboard when the control has focus.Left mouse click anywhere within the control area, with exception to the Remove Item Button of the item.The Dropdown Menu can be expanded only when the control is in EditMode. If no Filter Criteria is applied, then all items in the collection are displayed Visibility

Presents a list of suggestions that can be selected by the user. No attempt is made to change the current filter. The Filter Criteria is cleared as the Dropdown Menu is closing. The developer can override the default filter service, based on their own business logic requirements, that implements IFilterService.ĭepending on whether or not the ClearFilterOnDropdownClosing property is set to true and Dropdown Menu list as keyboard focus, the Filter Criteria is cleared automatically as the Dropdown Menu is closing. When you type a character in the text area, the control applies a filter on the collection and suggests a list of items matching that criteria in the Dropdown Menu list. The Dropdown Menu can be expanded or collapsed when the button is clicked and items present in the Selected Items Panel can be edited. The Dropdown Menu is collapsed and items present in the Selected Items Panel cannot be edited. To switch back to readonly, move focus away from the control by selecting any other control in the view or by deactivating the parent window. Once the control is in edit mode, the items can be filtered, selected or removed. To switch to edit mode, select the control in the view or hit ( F2) when the control has focus. When the control is in readonly mode, the items cannot be edited from the view. The control has two visual states, Readonly and EditMode, which is identified by the IsEditMode property. The item is removed from the selected items collection If the Filter Criteria is empty, then the last item in the selected items collection is removed. Additionally, items can also be removed by interacting with them directly from the Selected Items Panel, as follows: Device The selected items are displayed like tags with a remove button They can be added or removed from the selected items collection, by selecting them from the items present in the Dropdown Menu list.

The multi selection combo box is a WPF custom control with multiple item selection capabilities, along with customizable features to group, sort and filter items in the collection. Sdl.MultiSelectComboBox (WPF Custom Control)