WPF提示框效果
摘要：
WPF提示框效果 1，新建WPF应用程序 2，添加用户控件Message 3，在Message中编写如下代码 <Border x:Name="border" BorderThickness="3" Width="400" Height="60" CornerRadius="30" BorderBru 阅读全文
WPF 保存文件
摘要：
private void button2_Click(object sender, RoutedEventArgs e) { var saveFileDialog1 = new SaveFileDialog { Filter = "JPeg Image|*.jpg|Bitmap Image|*.bmp|Gif Image|*.gif", Title = "Save File" }; saveFileDialog1.ShowDialog... 阅读全文
R 语言DataFrame 排序
摘要：
Sort:dd ()){ Console.WriteLine(row.Species);} 阅读全文
R.Net 用法
摘要：
using (REngine engine = REngine.CreateInstance("RDotNet")) { engine.Initialize(); var expandGrid = engine.Evaluate("function(x, y) { expand.grid(x=x, y=y) }").AsFunction(); var v1 = engine.CreateIntegerVector(new[] {1, 2, 3}); ... 阅读全文
WPF AutoGeneratingColumn 绑定下拉框
摘要：
WPF自动产生列，前台代码： { "Age", "gender", "ID", "Name","Country" }; var column = new DataGridTemplateColumn { Header = e.PropertyName }; var dataTemplate = new DataTemplate(); var fef = new FrameworkElementFactory(typeof(ComboBox)); var binding = new Binding 阅读全文
C# Delegate 异步调用
摘要：
namespace ConsoleApplication22{ /// /// 异步操作 /// /// /// /// //internal Func int MainRun(int data, int sleep); internal class Program { private static void Main(string[] args) { Func mainRun = TakeAWhile; var ar = mainRun.BeginInvoke(1, 100, null, n... 阅读全文
WinForm TreeView 三种状态
摘要：
private void treeView1_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e) { var node = e.Node; if (node == null) return; //根据父节点状态，全选或全消子节点 node.StateImageIndex = node.StateImageIndex == 1 ? 0 : 1; UpdateSubNodeCheckStatus(node)... 阅读全文