![]() Support drag and drop of TreeNode branches within the same TreeView and have the relationships automatically reflected in the DataSet. Provide a sample for inserting nodes in the TreeView (via right click context menu) and have the new node automatically reflected in the DataSet. Text property change automatically reflected in the DataSet. Provide a sample for editing nodes in the TreeView (via right click context menu) and have the. Provide a sample for deleting nodes in the TreeView (via right click context menu) and have that deletion automatically reflected in the DataSet. UI developers should have to write next to nothing for code to keep the TreeView in sync with the DataSet underneath it. It also makes it easier to apply different binding strategies in the future.Įncapsulate as much of the binding logic inside the custom solution and hide it from the UI developers. It is for this reason that I opted not to create a custom control. The following were the initial requirements:ĭatabind a DataSet to the TreeView and save results back to a Microsoft Access database.ĭesign the solution to make it easy to modify the class to support a 3 party TreeView control should we decide to change to it. By the time I was done, I had written a custom class to do this and a whole lot more. This functionality would enable us to quickly develop user-friendly ways to create complex data analysis models for a new application we're designing. Recently, I was assigned a UI project exploration task regarding the use of databinding with the Windows Forms. So, we are left writing our own solutions. NET TreeView control doesn't support the concept of databinding like the ASP.NET TreeView control does. Morris Printer Friendly VersionĪt the time of this writing (June 2005), the standard Windows Forms. Node = RadTreeView1.Nodes("Reports").Nodes.TreeView - DataBinding and Drag/Drop in Windows Forms. Node = RadTreeView1.Nodes("Reports").Nodes.Add("First Quarter Summary") ![]() Node = RadTreeView1.Nodes("Reports").Nodes.Add("July Sales") Node = RadTreeView1.Nodes("Reports").Nodes.Add("June Sales") RadTreeView1.Nodes("Lists").Nodes.Add("Issues") RadTreeView1.Nodes("Lists").Nodes.Add("Opportunities") RadTreeView1.Nodes("Lists").Nodes.Add("Priorities") RadTreeView1.Nodes("Email Contacts").Nodes.Add("Lui Sang") RadTreeView1.Nodes("Email Contacts").Nodes.Add("Sue Winchell") Node = ("Second Quarter Summary") ĭim node As RadTreeNode = RadTreeView1.Nodes("Email Contacts").Nodes.Add("Bob Tony") This code creates new RadTreeNode objects, populates them with text and attaches them to parent nodes. In the form's constructor add the code appearing below the InitializeComponent() method call. ![]() In the form code add a "using" statement for ![]() See Property Builder topic for a complete tour of functionality.Ĭlick the far left button (a green "Plus" button that adds nodes) three times to add three nodes.Ĭlick the first node and enter "Email Contacts" in the Text entry.Ĭlick the second node and enter "Lists" in the Text entry.Ĭlick the third node and enter "Reports" in the Text entry.Ĭlick the RadTreeView Properties tab located in the left part of the Window.Ĭlick OK to close the Property Builder.The design should now look like the screenshot below. You will see a set of buttons on the left side of the RadTreeView Property Builder and a preview of the tree view below the buttons. Right click the RadTreeView and select Open Property Builder from the context menu. The design should now look like this.ĭrop the TelerikMetro theme form the tool box and set all controls ThemeName property to TelerikMetro. In the Properties window for the RadBreadCrumb set the DefaultTreeView property to point to the RadTreeView. On the form add a RadBreadCrumb and RadTreeView. Programmatically adding and configuring nodes. Using the RadTreeView designer to add and configure nodes. Topics included are:Īssociating breadcrumb component to the RadTreeView. The following tutorial will help you get started working with the RadTreeView at design time and programmatically. Download free 30-day trial Getting Started
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