ichengzi

// http://stackoverflow.com/questions/11572636/set-value-to-fontdialog-in-wpf/11572921#11572921
// http://blogs.msdn.com/b/text/archive/2006/11/01/sample-font-chooser.aspx 
// 微软官方博客的字体选择器例子
//WPF
System.Windows.Forms.FontDialog fontDialog = new System.Windows.Forms.FontDialog();
if (fontDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
    FontFamilyConverter ffc = new FontFamilyConverter();

    this.textAnnotation.FontSize = fontDialog.Font.Size;

ichengzi

namespace NAMESPACE
{
	public enum WindowsMessage
	{
		WM_NULL                        = 0x0000,
		WM_CREATE                      = 0x0001,
		WM_DESTROY                     = 0x0002,
		WM_MOVE                        = 0x0003,
		WM_SIZE                        = 0x0005,
		WM_ACTIVATE                    = 0x0006,

ichengzi

namespace XamlConsolePrinter
{
    using System.Printing;
    using System.Threading;
    using System.Threading.Tasks;
    using System.Threading.Tasks.Schedulers;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Xps;

ichengzi

namespace XamlConsolePrinter
{
    using System.Printing;
    using System.Threading;
    using System.Threading.Tasks;
    using System.Threading.Tasks.Schedulers;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Xps;

ichengzi

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

ichengzi

; This is part of my AutoHotKey [1] script. When you are in Windows Explorer it
; allows you to press Ctrl+Alt+N and type a filename, and that file is created
; in the current directory and opened in the appropriate editor (usually
; [gVim](http://www.vim.org/) in my case, but it will use whatever program is
; associated with the file in Windows Explorer).

; This is much easier than the alternative that I have been using until now:
; Right click > New > Text file, delete default filename and extension (which
; isn't highlighted in Windows 7), type the filename, press enter twice.
; (Particularly for creating dot files like ".htaccess".)

ichengzi

<TextBlock Text="Hello">
      <TextBlock.Style>
        <Style TargetType="TextBlock">
          <Setter Property="Foreground" Value="Blue"></Setter>
          <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
              <Setter Property="Foreground" Value="Red" />
              <Setter Property="TextDecorations" Value="Underline" />
            </Trigger>
            <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self},Path=Text}" Value="Hello">

ichengzi

var input = "PQR";
DataTable dt = new DataTable();
dt.Columns.Add("PId", typeof(Int32));
dt.Columns.Add("PName", typeof(string));
dt.Columns.Add("Qty", typeof(Int32));
dt.Rows.Add(123, "XYZ", 2);
dt.Rows.Add(223, "ABC", 4);
dt.Rows.Add(434, "PQR", 33);

var stkLists = dt.AsEnumerable().ToList();

ichengzi

DROP PROCEDURE IF EXISTS demo;
CREATE PROCEDURE demo()
BEGIN
	DECLARE EXIT HANDLER FOR SQLWARNING,NOT FOUND,SQLEXCEPTION 
	BEGIN
		set @o_ret=-1; 
		SELECT -2;
		ROLLBACK;
	END;
	START TRANSACTION;		

ichengzi

//enter键转tab键：
private void EnterKey_To_TabKey(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Enter)
    {
        TraversalRequest request = new TraversalRequest(FocusNavigationDirection.Next);
        ((FrameworkElement)sender).MoveFocus(request);
    }
}