سوال: نیاز به tabcontrol با دکمه close [بایگانی]

H2K

چهارشنبه 16 بهمن 1387, 12:57 عصر

سلام تو همون سايت كه دادين باندِ خدا كدِ كامل رو كه گذشته :لبخندساده:

http://i39.tinypic.com/2rvyj9h.jpg

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Security.Permissions;
using System.Runtime.InteropServices;
namespace Dotnetrix.Samples.CSharp
{
public class ClosableTabControl : System.Windows.Forms.TabControl
{
#region Windows Form Designer generated code
public ClosableTabControl() : base()
{
this.Scroller.ScrollLeft +=new EventHandler(Scroller_ScrollLeft);
this.Scroller.ScrollRight += new EventHandler(Scroller_ScrollRight);
this.Scroller.TabClose += new EventHandler(Scroller_TabClose);
}
//TabControl overrides dispose to clean up the component list.
[PermissionSetAttribute(SecurityAction.Demand, Name="FullTrust")]
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (UpDown != null)
UpDown.ReleaseHandle();
}
base.Dispose(disposing);
}

#region PInvoke Declarations

[DllImport("User32", CallingConvention=CallingConvention.Cdecl)]
private static extern int RealGetWindowClass(IntPtr hwnd, System.Text.StringBuilder pszType, int cchType);
[DllImport("user32")]
private static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);
[DllImport("user32.dll")]
private static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);

private const int WM_Create = 0x1;
private const int WM_PARENTNOTIFY = 0x210;
private const int WM_HSCROLL = 0x114;

#endregion
private NativeUpDown UpDown = null;
private TabScroller Scroller = new TabScroller();
private int ScrollPosition
{
get
{
int multiplier = -1;
Rectangle tabRect;
do
{
tabRect = GetTabRect(multiplier + 1);
multiplier ++ ;
}
while (tabRect.Left < 0 && multiplier < this.TabCount);
return multiplier;
}
}

[PermissionSetAttribute(SecurityAction.Demand, Name="FullTrust")]
protected override void WndProc(ref System.Windows.Forms.Message m)
{
if (m.Msg == WM_PARENTNOTIFY)
{
if ((ushort)(m.WParam.ToInt32() & 0xFFFF) == WM_Create)
{
System.Text.StringBuilder WindowName = new System.Text.StringBuilder(16);
RealGetWindowClass(m.LParam, WindowName, 16);
if (WindowName.ToString() == "msctls_updown32")
{
//unhook the existing updown control as it will be recreated if
//the tabcontrol is recreated (alignment, visible changed etc..)
if (UpDown != null)
UpDown.ReleaseHandle();
//and hook it.
UpDown = new NativeUpDown();
UpDown.AssignHandle(m.LParam);
}
}
}
base.WndProc(ref m);
}

protected override void OnHandleCreated(System.EventArgs e)
{
base.OnHandleCreated(e);
if (this.Multiline == false)
{
Scroller.Font = new Font("Marlett", this.Font.Size, FontStyle.Regular, GraphicsUnit.Pixel, this.Font.GdiCharSet);
SetParent(Scroller.Handle, this.Handle);
}
this.OnFontChanged(EventArgs.Empty);
}

protected override void OnFontChanged(System.EventArgs e)
{
base.OnFontChanged(e);
this.Scroller.Font = new Font("Marlett", this.Font.SizeInPoints, FontStyle.Regular, GraphicsUnit.Point);
this.Scroller.Height = this.ItemSize.Height;
this.Scroller.Width = this.ItemSize.Height * 3;
this.OnResize(EventArgs.Empty);
}

protected override void OnResize(System.EventArgs e)
{
base.OnResize(e);
Invalidate(true);
if (this.Multiline)
return;
if (this.Alignment == TabAlignment.Top)
Scroller.Location = new Point(this.Width - Scroller.Width, 2);
else
Scroller.Location = new Point(this.Width - Scroller.Width, this.Height - Scroller.Height - 2);
}

private void Scroller_ScrollLeft(Object sender, System.EventArgs e)
{
if (this.TabCount == 0)
return;
int scrollPos = Math.Max(0, (ScrollPosition - 1) * 0x10000);
SendMessage(this.Handle, WM_HSCROLL, (IntPtr)(scrollPos | 0x4), IntPtr.Zero);
SendMessage(this.Handle, WM_HSCROLL, (IntPtr)(scrollPos | 0x8), IntPtr.Zero);
}

private void Scroller_ScrollRight(Object sender, System.EventArgs e)
{
if (this.TabCount == 0)
return;
if (GetTabRect(this.TabCount - 1).Right <= this.Scroller.Left)
return;
int scrollPos = Math.Max(0, (ScrollPosition + 1) * 0x10000);
SendMessage(this.Handle, WM_HSCROLL, (IntPtr)(scrollPos | 0x4), IntPtr.Zero);
SendMessage(this.Handle, WM_HSCROLL, (IntPtr)(scrollPos | 0x8), IntPtr.Zero);
}

private void Scroller_TabClose(Object sender, System.EventArgs e)
{
if (this.SelectedTab != null)
this.TabPages.Remove(this.SelectedTab);
}

#endregion

}

#region Custom Scroller with Close Button
internal class TabScroller : System.Windows.Forms.Control
{
#region Windows Form Designer generated code

public TabScroller() : base()
{
//This call is required by the Windows Form Designer.
InitializeComponent();

//Add any initialization after the InitializeComponent() call

}

//TabScroller overrides dispose to clean up the component list.
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

//Required by the Windows Form Designer
private System.ComponentModel.IContainer components = null;

//NOTE: The following procedure is required by the Windows Form Designer
//It can be modified using the Windows Form Designer.
//Do not modify it using the code editor.
internal System.Windows.Forms.Button LeftScroller;
internal System.Windows.Forms.Button RightScroller;
internal System.Windows.Forms.Button CloseButton;
[System.Diagnostics.DebuggerStepThrough()] private void InitializeComponent()
{
this.LeftScroller = new System.Windows.Forms.Button();
this.RightScroller = new System.Windows.Forms.Button();
this.CloseButton = new System.Windows.Forms.Button();
this.SuspendLayout();
//
//LeftScroller
//
this.LeftScroller.Dock = System.Windows.Forms.DockStyle.Right;
this.LeftScroller.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.LeftScroller.Location = new System.Drawing.Point(0, 0);
this.LeftScroller.Name = "LeftScroller";
this.LeftScroller.Size = new System.Drawing.Size(40, 40);
this.LeftScroller.TabIndex = 0;
this.LeftScroller.Text = "3";
this.LeftScroller.Click+=new EventHandler(LeftScroller_Click);
//
//RightScroller
//
this.RightScroller.Dock = System.Windows.Forms.DockStyle.Right;
this.RightScroller.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.RightScroller.Location = new System.Drawing.Point(40, 0);
this.RightScroller.Name = "RightScroller";
this.RightScroller.Size = new System.Drawing.Size(40, 40);
this.RightScroller.TabIndex = 1;
this.RightScroller.Text = "4";
this.RightScroller.Click+=new EventHandler(RightScroller_Click);
//
//CloseButton
//
this.CloseButton.Dock = System.Windows.Forms.DockStyle.Right;
this.CloseButton.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.CloseButton.Location = new System.Drawing.Point(80, 0);
this.CloseButton.Name = "CloseButton";
this.CloseButton.Size = new System.Drawing.Size(40, 40);
this.CloseButton.TabIndex = 2;
this.CloseButton.Text = "r";
this.CloseButton.Click+=new EventHandler(CloseButton_Click);
//
//TabScroller
//
this.Controls.Add(this.LeftScroller);
this.Controls.Add(this.RightScroller);
this.Controls.Add(this.CloseButton);
this.Font = new System.Drawing.Font("Marlett", 8.25f, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, (byte)2);
this.Name = "TabScroller";
this.Size = new System.Drawing.Size(120, 40);
this.Resize+=new EventHandler(TabScroller_Resize);
this.ResumeLayout(false);

}
#endregion
public event EventHandler TabClose;
public event EventHandler ScrollLeft;
public event EventHandler ScrollRight;
private void TabScroller_Resize(Object sender, System.EventArgs e)
{
LeftScroller.Width = this.Width / 3;
RightScroller.Width = this.Width / 3;
CloseButton.Width = this.Width / 3;
}

private void LeftScroller_Click(Object sender, System.EventArgs e)
{
if (ScrollLeft != null)
ScrollLeft(this, EventArgs.Empty);
}

private void RightScroller_Click(Object sender, System.EventArgs e)
{
if (ScrollRight != null)
ScrollRight(this, EventArgs.Empty);
}

private void CloseButton_Click(Object sender, System.EventArgs e)
{
if (TabClose != null)
TabClose(this, EventArgs.Empty);
}

}
#endregion
#region UpDown Control Subclasser
internal class NativeUpDown: NativeWindow
{
public NativeUpDown() : base(){}

private const int WM_DESTROY = 0x2;
private const int WM_NCDESTROY = 0x82;
private const int WM_WINDOWPOSCHANGING = 0x46;

[StructLayout(LayoutKind.Sequential)]
private struct WINDOWPOS
{
public IntPtr hwnd, hwndInsertAfter;
public int x ,y ,cx ,cy ,flags;
}
[PermissionSetAttribute(SecurityAction.Demand, Name="FullTrust")]
protected override void WndProc(ref System.Windows.Forms.Message m)
{
if (m.Msg == WM_DESTROY || m.Msg == WM_NCDESTROY)
this.ReleaseHandle();
else if (m.Msg == WM_WINDOWPOSCHANGING)
{
//Move the updown control off the edge so it's not visible
WINDOWPOS wp = (WINDOWPOS)(m.GetLParam(typeof(WINDOWPOS)));
wp.x += wp.cx;
Marshal.StructureToPtr(wp, m.LParam, true);
_bounds = new Rectangle(wp.x, wp.y, wp.cx, wp.cy);
}
base.WndProc( ref m);
}

private Rectangle _bounds;
internal Rectangle Bounds
{
get{return _bounds;}
}
}
#endregion
}