思归呓语

衣带渐宽终不悔，为伊消得人憔悴

随笔 - 413, 评论 - 2972, 引用 - 245

关于

每月存档

又一个里程碑，又见无数不眠夜

无数人奔走相告，传送着VS2005正式版本发行的喜讯。虽然想着又要卸载各个机器上的Beta版本甚至重新格式化，但想想那种对正式版本的等待终于要过去了，又是无限的欣慰

欣慰之余，读到大师Charles Petzold 的“Does Visual Studio Rot the Mind?”，甚有同感，不知道对Visual Studio的日益依赖应该是庆幸还是惋惜...

posted on 2005-10-28 04:14:00 by saucer 评论(26) 阅读(7989)

去掉/禁止系统菜单里的MOVE的方法

针对论坛上的问题“如何禁止在标题栏上点右键”，有如下方法：

1。用API去掉Move，

[DllImport("user32.dll",EntryPoint="GetSystemMenu")]
extern static System.IntPtr GetSystemMenu(System.IntPtr hWnd , System.IntPtr
bRevert);

[DllImport("user32.dll",EntryPoint="RemoveMenu")]
extern static int RemoveMenu (IntPtr hMenu, int nPos, int flags);

static int MF_BYPOSITION = 0x400;
static int MF_REMOVE = 0x1000;

System.IntPtr hdl= GetSystemMenu(this.Handle,System.IntPtr.Zero);
int nflag =MF_BYPOSITION | MF_REMOVE;
int npos =1;
RemoveMenu(hdl,npos,nflag);

2。去掉系统菜单(不推荐)

private const int WS_SYSMENU = 0x00080000;

protected override CreateParams CreateParams
{
   get
   {
    CreateParams cp = base.CreateParams;
    cp.Style = cp.Style & ~WS_SYSMENU;
    return cp;
   }
}

示范代码如下

using  System;  
using  System.Windows.Forms;  
using System.Runtime.InteropServices;
 
public  class  Test  :  Form  
{

[DllImport("user32.dll",EntryPoint="GetSystemMenu")] 
	extern static System.IntPtr GetSystemMenu(System.IntPtr hWnd , System.IntPtr bRevert);

[DllImport("user32.dll",EntryPoint="RemoveMenu")] 
	extern static int RemoveMenu (IntPtr hMenu, int nPos, int flags);

static int MF_BYPOSITION = 0x400; 
	static int MF_REMOVE = 0x1000;

Test()  
   {  
       Text                        =  "不让拖动的标题栏";  
       FormBorderStyle  =  FormBorderStyle.FixedDialog;  
       MaximizeBox          =  false;  
       MinimizeBox          =  false;

//method 1
		/*System.IntPtr hdl= GetSystemMenu(this.Handle,System.IntPtr.Zero); 
		int nflag =MF_BYPOSITION | MF_REMOVE; 
		int npos =1; 
		RemoveMenu(hdl,npos,nflag); 
	*/
   }  
 
  private const int WM_NCHITTEST = 0x84; 
  private const int HTCAPTION = 0x2; 
  private const int HTCLIENT = 0x1;

protected  override  void  WndProc(ref  Message  m)  
   {  
       base.WndProc(ref  m);  
       if(m.Msg  ==   WM_NCHITTEST  &&  m.Result  ==  (IntPtr)HTCAPTION)
       {  
           m.Result  =  (IntPtr) HTCLIENT;  
       }  
   }  
 
 //method 2
 
	private const int WS_SYSMENU = 0x00080000;

protected override CreateParams CreateParams 
	  { 
	   get 
	   { 
		CreateParams cp =  base.CreateParams; 
		cp.Style = cp.Style & ~WS_SYSMENU; 
		return cp; 
	   } 
	}

static  void  Main()  
   {  
       Application.Run(new  Test());  
   }  
}

posted on 2005-10-07 12:11:00 by saucer 评论(4) 阅读(3035)

使用自定义集合编辑器以避免生成对象变量

看到这个问题，怎样让自定义控件的子控件不会自动生成变量定义？研究了一下Table对象，发现，你需要使用自定义的集合编辑器，示范编码如下

using System;
using System.Collections;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Web.UI.Design.WebControls;
using System.Drawing.Design;
using System.Reflection;

namespace CSDNControls
{
	[ToolboxData("<{0}:ColorToolbar runat=server></{0}:ColorToolbar>")]
	public class ColorToolbar : System.Web.UI.WebControls.WebControl
	{
		ColorButtonCollection colorButtons;

[PersistenceMode(PersistenceMode.InnerProperty)]
		public ColorButtonCollection Buttons 
		{ 
			get
			{
				if (colorButtons == null)
					colorButtons = new ColorButtonCollection(this);

return colorButtons;
			}
		}
	}

[ToolboxItem(false)]
	public class ColorButton : Button
	{

}

[Editor(typeof(ColorButtonCollectionEditor),typeof(UITypeEditor))]
	public class ColorButtonCollection : CollectionBase
	{
		private Control _owner;
		
		internal ColorButtonCollection(Control owner)
		{
			this._owner = owner;
		}

public ColorButton this[int Index]
		{
			get
			{
				return (ColorButton) List[Index];
			}
		}
		public bool Contains(ColorButton btn)
		{
			return List.Contains(btn);
		}
		public int Add(ColorButton btn)
		{
			int i;
			i = List.Add(btn);
			_owner.Controls.Add(btn);
			return i;
		}

public void Insert( int index, ColorButton btn )  
		{
			List.Insert( index, btn );
			_owner.Controls.AddAt(index,btn);
		}

public int IndexOf( ColorButton btn)  
		{
			return List.IndexOf( btn );
		}

public void Remove(ColorButton btn)
		{
			List.Remove(btn);
			_owner.Controls.Remove(btn);
		}

}

public class ColorButtonCollectionEditor : CollectionEditor
	{
		
		public ColorButtonCollectionEditor(Type type) : base(type){}
		//protected override bool CanSelectMultipleInstances() {return false;}
		protected override object CreateInstance(Type itemType) 
		{
			return Activator.CreateInstance(itemType, BindingFlags.CreateInstance | (BindingFlags.Public | BindingFlags.Instance), null, null, null);
		}
	}
}

posted on 2005-10-07 02:30:00 by saucer 评论(3) 阅读(3032)

思归呓语

导航

关于

标签

每月存档

最新留言

广告

又一个里程碑，又见无数不眠夜

去掉/禁止系统菜单里的MOVE的方法

使用自定义集合编辑器以避免生成对象变量