WebApr 10, 2024 · 使用C#treeview中的Find()方法,但是在运行如下语句时 TreeNode[] nodes = this.treeView1.Nodes.Find(treeNodeselected.Text, true); nodes.length一直是0,而treeNodeselected.Text的节点确实是存在,这是为什么 另外, treeView1.Nodes[0].Expand();写一次运行没有效果,必须写两次才会有效果是怎么回事 WebC# VB.NET public virtual void BeginUpdate() Remarks You can use the BeginUpdate and GridControl.EndUpdate methods to prevent excessive visual updates to the currently …
TreeView.BeginUpdate C# (CSharp) Code Examples - HotExamples
WebBeginUpdate 和 EndUpdate 会有巨大的优势。如果一次只添加一个元素,则没有任何优势. 也就是说,通常最好只使用它,它允许您在一次调用中添加多个项,而不必担心 BeginUpdate / EndUpdate. 否。BeginUpdate()确保在添加项时ListView不会尝试重新绘 … tryonmounted
GridControl.BeginUpdate() Method WinForms Controls
WebMay 27, 2013 · It is caused by the fact that between the time the background of the treeview is erased and the time it is redraw, it takes enough time that it becomes visible. to solve this problem, the only way is to double buffer your treeview. http://duoduokou.com/csharp/40861296492759170225.html WebIn this example, 1,000 customers are displayed with 15 orders each. The repainting of the TreeView is suppressed by using the BeginUpdate and EndUpdate methods, and a wait Cursor is displayed while the TreeView creates and paints the TreeNode objects. This example requires that you have a Customer object that can hold a collection of Order … tryon nc 28782 florist