从 WinForms 升级到 Telerik

Question

我正在尝试将 WinForms 升级到 Telerik Controls，当我升级它时

this.treeAccounting.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.TreeAccountingAfterSelect);

对于这个新的 RadControl 声明：

this.treeAccounting.SelectedNode += new Telerik.WinControls.UI.RadTreeViewEventArgs(this.TreeAccountingAfterSelect);

我收到一个关于最佳重载方法匹配的错误，其中 TreeAccountingAfterSelect 的参数无效。它还说不能从“方法组”转换为“Telerik.WinControls.UI.RadTreeNode”。这是 TreeAccountingAfterSelect 的函数事件。

private void TreeAccountingAfterSelect(object sender, Telerik.WinControls.UI.RadTreeViewEventArgs e)
    {
        string strSelectedNode = treeAccounting.SelectedNode.Text;

        // Since the user can select any node (root, branch, leaf) of a tree in any order -
        // cannot presume that they will select a root, then a leaf - so handle accordingly.
        if (treeRootNames[(int)TreeNodes.TrialBalance] == strSelectedNode)
        {
            // Configure the Generator for doing a Trial Balance (detail) report
            CrntReport = ReportTypes.TrialBalance;
            CrntLocation = Locations.UNKNOWN;

            // Based on default settings in the Report Property dialog (from App.Config) initialize
            // screen controls.
            lblCurrency.Visible = rptProperties.TBShowCurrencyCodes;
            cboxCurrencyCode.Visible = rptProperties.TBShowCurrencyCodes;
            this.Refresh();

            // Setup the selections for the various parameters in the TrialBalance
            // Parameters group.
            SetupTBControls();
        }
        return;
    }

我是 Telerik 的新手，我尝试了不同的事件并尝试更改通过函数传递的参数，但由于某种原因，它不允许我像 WinForms 那样使用它。有人能告诉我在哪里我不理解 WinForms 到 Telerik 的变化。

Answer 1

查看their documentation，RadTreeView 似乎没有SelectedNode 事件。
相反，你有

SelectedNodeChanged     Occurs when selected node has been changed.  

SelectedNodeChanging    Occurs when the selected node is changing  

而且您不使用RadTreeViewEventArgs 来绑定事件处理程序，而是使用RadTreeViewEventHandler

所以也许你需要写

this.treeAccounting.SelectedNodeChanged += 
      new RadTreeViewEventHandler(this.TreeAccountingAfterSelect);

委托的语法也允许

this.treeAccounting.SelectedNodeChanged += this.TreeAccountingAfterSelect;