![]() TreeViewNodeList. If (selectedItem.ParentId = TopNodeId)//If it is a parent node, the data source needs to be updated synchronously TreeViewNode _copyNode = (TreeViewNode)copyNode.Clone() Int index = GetNodeIndex(_selectParentNode.ChildNodes, selectedItem) If (selectedItem = null || copyNode = null || _selectParentNode = null || selectedItem.IsNodeAdd || selectedItem.IsChildNodeAdd || selectedItem.ParentId != copyNode.ParentId) TreeViewNode _selectParentNode = selectedItem.ParentId = TopNodeId ? TopNode : TopNode.ChildNodes Private void Command_Paste_Executed(object sender, ExecutedRoutedEventArgs e) Private void Command_Paste_CanExecute(object sender, CanExecuteRoutedEventArgs e)Ä®.CanExecute = selectedItem != null & copyNode != null & !selectedItem.IsNodeAdd & !selectedItem.IsChildNodeAdd & selectedItem.ParentId = copyNode.ParentId If (selectedItem = null || selectedItem.IsNodeAdd || selectedItem.IsChildNodeAdd) return Private void Command_Copy_Executed(object sender, ExecutedRoutedEventArgs e) TreeViewNode selectedItem = (TreeViewNode) Ä®.CanExecute = selectedItem != null & !selectedItem.IsNodeAdd & !selectedItem.IsChildNodeAdd Private void Command_Copy_CanExecute(object sender, CanExecuteRoutedEventArgs e) ((MenuItem)TreeViewMenu.Items).IsEnabled = ((MenuItem)TreeViewMenu.Items).IsEnabled = ((MenuItem)TreeViewMenu.Items).IsEnabled = selectNode != null & !selectNode.IsNodeAdd & !selectNode.IsChildNodeAdd TreeViewNode selectNode = (TreeViewNode)treeView.SelectedItem Realization of related events private void TreeViewMenu_Opened(object sender, RoutedEventArgs e) Using (MemoryStream ms = new MemoryStream())Ä«inaryFormatter bf = new BinaryFormatter() Ĥ. ![]() #region ICloneable interface implementation method Public event PropertåhangedEventHandler Propertåhanged ![]() Public class TreeViewNode : INotifyPropertåhanged,ICloneable Modify the TreeViewNode class, add a serializable flag and implement the ICloneable interface Add the right-click menu copy, paste, delete and related Commands in the TreeView control Ä£. Add global variables private TreeViewNode copyNode //The copied node dataÄ¢. Here is the right-click menu copy, paste, and delete functions, the effect is as follows:Ä¡. Fixed â Invalid type.It is inevitable to add and delete when operating the TreeView.Fixed â InvalidStateError: Failed to read the âresponseTextâ property from âXMLHttpRequestâ: The value is only accessible if the objectâs âresponseTypeâ is â or âtextâ (was âarraybufferâ).If there is no currently selected item, tell. In the click event of the menu (or any other event actually) get the current selected item var node tView.SelectedItem as TreeViewItem. Name the TreeView which the operation in question is occurring such as tView for this example. Use the theme assistant Copilot to style emails (Dynamics 365 Customer Insights â Journey / Marketing) February 7, 2024 A better way to get the actual treeview item is to do these steps.Use Sales Copilot to see the pipeline (Dynamics 365) February 13, 2024.Use Sales Copilot to see the leads and opportunities assigned (Dynamics 365) February 14, 2024.Exploring Pascalcase Data Mask App for masking data for Dynamics 365 and Power Platform Environments February 16, 2024.Block unmanaged customizations (preview) â Dataverse / Dynamics 365 February 27, 2024.Fixed â System.InvalidOperationException: Message size exceeded when attempting to send response to sandbox.Fixed â Duplicate records in Azure Synapse Link (Dataverse) February 29, 2024.Parent = VisualTreeHelper.GetParent(parent) Private static DependencyObject GetDependencyObjectFromVisualTree(DependencyObject startObject, Type type) (sender as TreeViewItem).ContextMenu = menu Sharing a simple example wherein we are generating dynamic menuitems for the context menu based on the node or treeviewitem selected in the treeview. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |