LP TRNH WINFORM VI C#

Ch Gii thiu cc window controls c bn

Form, Label, TextBox, Button, CheckBox, Radio

Button, Combo Box, List Box, Menu Strip, Tool Strip,

Tree View, List View

Thit k Layout window controls

Form Namespace: System.Windows.Forms

Dng sp xp v thit k cc control c bn, hnh thnh giao din s dng

Form Thm mi mt window form

Form Danh s|ch thuc tnh

Tn thuc tnh ngha

BackColor/ForeColor M{u nn / M{u ch

BackGroundImage nh nn

AcceptButton Nt c chn kch hot s kin click khi ngi dng click Enter

CancelButton Nt c chn kch hot s kin click khi ngi dng click Esc

Controls Danh s|ch c|c control con ca n. Cho php ngi dng thm hoc xa ng controls

FormBorderStyle Chn loi window form

Opacity m ca window form

Form Danh s|ch thuc tnh

Tn thuc tnh ngha

AutoSize Cho php ko dn form

CauseValidation Cho php c|c control con ca n c th ph|t sinh s kin Validate. Dng kim tra d liu hp l.

TopMost Cho php Form hin trn tt c c|c form khc

WindowState {Normal, Minimized, Maximized}. Th hin ca Form khi xut hin

Cursor Thit lp con tr chut

Icon Thit lp Icon ca form

Form Danh sch cc hm

Tn hm ngha

Show() Sau khi dialog hin ln, ngi dng c th chn focus v{o control kh|c

ShowDialog() Sau khi dialog hin ln ngi dng khng th focus v{o c|c control kh|c.

Kiu d liu tr v: DialogResult.

Close() ng Dialog

this.DialogResult = DialogResult.OK

ng dialog v{ tr v kt qu tng ng OK

This.DialogResult = DialogResult.Cancel

ng dialog v{ tr v kt qu tng ng Cancel.

Form

Tn hm ngha

Load() S kin c kch hot khi Form ~ load xong cc control.

S kin n{y c bt khi ngi dng mun khi to bin hoc gi| tr trong Form

Paint() S kin n{y c gi khi Form thc hin v li. (Di chuyn chut, phng to, thu nh,..) (S trnh by chi tit trong GDI +)

KeyPress, KeyDown,.. C|c s kin v phm

MouseHover, MouseDown, MouseLeave

C|c s kin chut

Danh s|ch c|c s kin

Label

Namespace: System.Windows.Forms

Th hin text vn bn

TextBox Namespace: System.Windows.Forms

Nhp v{ xut d liu t ngi dng

TextBox

Tn thuc tnh ngha

Text Ly hoc thit lp gi| tr ca textbox. }y l{ thuc tnh th hin d liu m{ tt c c|c control u c.

TextLength Chiu d{i ti a ca TextBox

TextAlign Canh l ch trong TextBox

Multiline Cho php TextBox c th nhiu h{ng

PasswordChar K t hin trong textbox dng **

SelectedText Chn on text c chn

SelectionStart Ly v tr ca on text c chn

ReadOnly Ch c, khng th thay i ni dung Text

Danh s|ch c|c thuc tnh

TextBox

Tn thuc tnh ngha

TextChanged S kin ph|t sinh khi ngi dng thay i ni dung text.

Validating Khi mt focus th s kin n{y ph|t sinh kim tra d liu hp l.

Tham s:

object sender, CancelEventArgs e

KeyPress Bt s kin g phm

Tham s:

object sender, KeyPressEventArgs e

C|c s kin

MaskEditBox Namespace: System.Windows.Forms

nh dng th hin v nhp ca TextBox nh nh dng s in thoi,.

MaskEditBox Thuc tnh Mask: Thit lp mt n cho MaskEditBox.

S dng c|c Mask c nh ngha sn

MaskEditBox Thit lp gi| tr Mask:

Thnh phn mask ngha

0 S. Yu cu bt buc phi nhp s t 0-9

9 S hoc khong trng (Optional)

# S hoc khong trng (Optional). C th nhp du + hoc -

L K t [a..z] hoc [A..Z] (Bt buc)

? K t [a..z] hoc [A..Z] (Khng bt buc)

, n v phn ng{n (1,234)

. n v phn l (0.32)

Button Namespace: System.Windows.Forms

Dng nt, thc thi c|c lnh (chc nng) ca chng trnh.

CheckBox Namespace: System.Windows.Forms

Cho php ngi dng c th chn nhiu la chn (Multi-Select)

CheckBox Thuc tnh c bn: Checked

S kin c bn: CheckedChanged.

CheckListBox Namespace: System.Windows.Forms

Hin danh sch cc check box

Thuc tnh c bn: Items S kin c bn: SelectedIndexChanged

Radio Button Namespace: System.Windows.Forms

Cho php ch chn 1 la chn trong nhiu la chn

Thuc tnh c bn: Checked S kin c bn: CheckedChanged

GroupBox Namespace: System.Windows.Forms

Gom nhm cc control. Thit lp gi tr ca GroupBox s nh hng n cc control n cha

ListBox Namespace: System.Windows.Forms

Hin danh sch cc mc Items

ListBox

Mt s thuc tnh c bn

Items

SelectionMode

SelectedIndex

Mt s s kin c bn

SelectedIndexChanged

ToolStrip Namespace: System.Windows.Forms

Dng ToolBar cha nhiu cc controls khc nhau

Menu Strip

Tool Strip ToolStripMenuItem l 1 Menu Item ca Menu Strip

Mt s thuc tnh c bn

Text

Image

Checked

DropDownItems

Mt s s kin c bn

Click

Cc thuc tnh, phng thc v s kin ca ToolStripTextBox, ToolStripComboBox ging nh Text Box v ComboBox

Tool Strip Namespace: System.Windows.Forms

Dng Toolbar cha nhiu control

MenuStrip Namespace: System.Windows.Forms

Dng ToolBar cha nhiu cc controls khc nhau

ToolStrip Mi button c th l

ToolStripButton

ToolStripSplitButton

ToolStripDropDownButton

ToolStripComboBox

ToolStripTextBox

ToolStripSeperator

ToolStripProgressBar

Thuc tnh c bn

Items

Ch Thit k Layout

Dock, Anchor trong Layout

Gii thiu cc controls trong .NET 2005

Thit k Layout S dng Toolbar LayOut

Thit k v tr c|c control trong giao din nh:

Thc hin sp xp

Canh chnh kch thc gia c|c control

Canh ta cho nhiu control

Thit k Layout

Thit k Layout Cch thao tc:

Bc 1: Chn ti thiu 2 controls (Nhn phm Ctrl + click chut tr|i ln c|c control c chn)

Bc 2: Chn c|c biu tng trong thanh Layout ToolBar

Thanh Layout Toolbar nh ngha

Canh l tr|i, phi, trn, di

Canh khong c|ch u theo chiu dc, ngang gia c|c control

Canh u kch thc c|c control.

Lu : Kch thc ca control c chn u tin trong danh s|ch c|c control chn s quyt nh kch thc cho to{n b control

nh ngha

C|c control c sp canh lin tip nhau theo chiu ngang.

Lu : Khong c|ch gia control u v{ cui s c tnh sao cho c|c control cn li c|ch u

Xa khong c|ch canh u sp lin tip nhau theo chiu ngang

Tng hoc gim khong c|ch canh lin tip nhau theo chiu ngang

Thanh Layout Toolbar

nh ngha

C|c control c sp canh lin tip nhau theo chiu dc

Xa khong c|ch canh u sp lin tip nhau theo chiu dc

Tng hoc gim khong c|ch canh lin tip nhau theo chiu dc

Thanh Layout Toolbar

Thanh Layout Toolbar

nh ngha

Canh control gia form theo chiu ngang (dc)

Xt control nm chng ln hoc nm di 2 control nm ln nhau

Thit lp th t Tab Index cho c|c control. C|c control s c |nh th t t 0->N.

Khi ngi dng nhn Tab trong chng trnh th c|c control s c focus theo th t qui nh.

Dock, Anchor trong Layout

Khi c s thay i kch thc hoc v tr ca control cha th control con trong n s m bo c kch thc v{ v tr tng ng thng qua thuc tnh Dock v Anchor.

Bt k control n{o trong .NET u c 2 thuc tnh Dock v Anchor

Dock: X|c nh kch thc ca control so vi control (cha) ang cha n.

Anchor: X|c nh v tr ca control so vi control (cha) ang cha n

Gii thiu cc controls trong .NET 2005 C|c control c gii thiu trong slide n{y:

TreeView

ListView

ContextMenuStrip

NotifyIcon

ErrorProvider

DateTimePicker

StatusStrip

TabControl

Common Dialogs (Color Dialog, OpenFileDialog, SaveFileDialog)

TreeView Th hin dng C}y

Tng node bn trong n l{ 1 TreeNode

Trong 1 TreeNode c th c 1 hoc nhiu TreeNode con

Thuc tnh: Nodes, SelectedNode

S kin: AfterSelect, BeforeSelect

Phng thc: CollapseAll, ExpandAll, GetNodeAt(Point)

TreeView

ListView Th hin dng li hoc icon ca c|c items con.

Thuc tnh: Columns, Items, View (LargeIcon, SmallIcon, Detail, List), FullRowSelect

Mi item trong ListView l{ 1 ListViewItem

Thuc tnh: Text, SubItems (Ch dng khi View ca ListView l Detail), ImageIndex

ListView

ContextMenuStrip L{ menu ng cnh; c th g|n cho tt c c|c control.

Menu c gi khi ngi dng nhn chut phi ln Control

Gn Menu vo 1 control

.ContextMenuStrip =

NotifyIcon To biu tng Icon thanh taskbar

C|ch thc hin:

Bc 1: Drag & drop control NotifyIcon

Bc 2: Thit lp thuc tnh nh ContextMenuStrip, Icon, Text

ErrorProvider Xut thng b|o cho c|c control, biu tng thng

b|o s c canh ngay cnh control.

Thay v dng Label thng b|o li, ta s dng ErrorProvider

ErrorProvider

DateTimePicker Control th hin ng{y th|ng

Thuc tnh: Value (Dng ly gi| tr ng{y th|ng; kiu d liu DateTime)

StatusStrip Th hin status bar ca 1 form

C|ch s dng:

Bc 1: Drag & drop StatusStrip vo Form

Bc 2: Thit lp c|c control cho StatusStrip

TabControl Chia giao din ra theo thit k Tab

Thuc tnh: TabPages

HT