TreeView设置节点图标 没子节点的设置其图标为 0 有节点的设置其图标为 1 procedure TForm1.Button1Click(Sender: TObject);var i:Integer;begin with TreeView1 do begin for i:= 0 to Items.Count -1 do begin if Items[i].HasChildren then begin
How to avoid WPF TreeView SelectedItemChanged being called twice Very often, we need to execute some code in SelectedItemChanged depending on the selected TreeViewItem. But SelectedItemChanged is called twice. This is due to stealing focus from the m
由于项目需要,需要能够定位TreeView中的点,TreeView的节点数过多的情况下,即使找到了对应的节点并选中展示了,由于不在可视区域内,给用户的感觉还是不好,因此设计如下的Behavior,来实现选中的TreeViewItem显示在可见区域: using System; using System.Windows; using System.Windows.Controls; namespace Johar.Core { public static class BringIntoViewBe
1.TreeView选择事件执行两次 Very often, we need to execute some code in SelectedItemChanged depending on the selected TreeViewItem. ButSelectedItemChanged is called twice. This is due to stealing focus from the main window, which is screwing something up. Wha
有时候你是不是也会遇到要在wpf后台给某个控件设置背景色或者给文字设置前景色的情况? 本人最近看到一个从自定义的combobox读取系统字体和颜色的实例,该实例实现了随字体combobox选项改变而改变字体的设置,而颜色combobox却没有实现,于是自己也想设置一下.结果发现颜色从前台好像不好设置成动态的,于是尝试从后台combobox_SelectionChanged事件设置. 要设置颜色,首先要获取颜色.获取颜色的方式我总结了五种: 1. Color color = Color.FromA