VB.Net Tutorial/GUI/DateTimePicker — различия между версиями

Материал из VB Эксперт
Перейти к: навигация, поиск
м (1 версия)
 
(нет различий)

Текущая версия на 15:57, 26 мая 2010

DataTimePicker format

<source lang="vbnet">Imports System.Windows.Forms public class DataTimePickerFormat

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Inherits System.Windows.Forms.Form
   Public Sub New()
       MyBase.New()
       InitializeComponent()
   End Sub
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing Then
           If Not (components Is Nothing) Then
               components.Dispose()
           End If
       End If
       MyBase.Dispose(disposing)
   End Sub
   Private components As System.ruponentModel.IContainer
   Friend WithEvents DateTimePicker1 As System.Windows.Forms.DateTimePicker
   Friend WithEvents ComboBox1 As System.Windows.Forms.ruboBox
   Friend WithEvents Label1 As System.Windows.Forms.Label
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.DateTimePicker1 = New System.Windows.Forms.DateTimePicker
       Me.ruboBox1 = New System.Windows.Forms.ruboBox
       Me.Label1 = New System.Windows.Forms.Label
       Me.SuspendLayout()
       "
       "DateTimePicker1
       "
       Me.DateTimePicker1.Location = New System.Drawing.Point(40, 24)
       Me.DateTimePicker1.Name = "DateTimePicker1"
       Me.DateTimePicker1.Size = New System.Drawing.Size(120, 20)
       Me.DateTimePicker1.TabIndex = 0
       "
       "ComboBox1
       "
       Me.ruboBox1.Items.AddRange(New Object() {"Long", "Short", "Custom", "Time"})
       Me.ruboBox1.Location = New System.Drawing.Point(40, 200)
       Me.ruboBox1.Name = "ComboBox1"
       Me.ruboBox1.Size = New System.Drawing.Size(120, 21)
       Me.ruboBox1.TabIndex = 1
       "
       "Label1
       "
       Me.Label1.Location = New System.Drawing.Point(40, 160)
       Me.Label1.Name = "Label1"
       Me.Label1.Size = New System.Drawing.Size(80, 24)
       Me.Label1.TabIndex = 2
       Me.Label1.Text = "Format"
       "
       "Form1
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(292, 266)
       Me.Controls.Add(Me.Label1)
       Me.Controls.Add(Me.ruboBox1)
       Me.Controls.Add(Me.DateTimePicker1)
       Me.Name = "Form1"
       Me.Text = "DateTimePicker"
       Me.ResumeLayout(False)
   End Sub
   Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
       If ComboBox1.SelectedIndex < 0 Then
           Return
       End If
       Dim caption As String = ComboBox1.SelectedItem.ToString().Chars(0)
       Dim format As DateTimePickerFormat
       Select Case caption
           Case "S"c
               format = DateTimePickerFormat.Short
           Case "T"c
               format = DateTimePickerFormat.Time
           Case "C"c
               format = DateTimePickerFormat.Custom
           Case Else
               format = DateTimePickerFormat.Long
       End Select
       DateTimePicker1.Format = format
   End Sub

End Class</source>

DateTimePicker format: LongDate, LongTime, ShortDate, ShortTime

<source lang="vbnet">Option Strict On imports System imports System.Drawing imports System.Windows.Forms public class DTPicker : inherits Form

 dim dtp as DateTimePicker
 public sub New()
   Size = new Size(400,300)
   AddHandler me.Load, AddressOf me_Load
   dtp = new DateTimePicker()
   dtp.Parent = me
   dtp.Location = new Point(20,20)
   dtp.Size = new Size(ClientSize.Width - 40, dtp.PreferredHeight)
   dtp.Anchor = AnchorStyles.Top or AnchorStyles.Left or AnchorStyles.Right
   dim fnt as new Font("Times New Roman", 16)
   dtp.CalendarFont = new Font(fnt, FontStyle.Bold or FontStyle.Italic)
   dtp.CalendarForeColor = Color.Red
   dtp.CalendarMonthBackground = Color.Yellow
   dtp.CalendarTitleBackColor = Color.Lime
   dtp.CalendarTitleForeColor = Color.Blue
   dtp.CalendarTrailingForeColor = Color.FromArgb(255,192,192)
   dtp.CustomFormat = "dddd,MMMM d, yyyy "at" h:mm:ss tt"
   dtp.Format = DateTimePickerFormat.Custom
   dtp.DropDownAlign = LeftRightAlignment.Right
   dtp.ShowUpDown = false      " default
   AddHandler dtp.ValueChanged, AddressOf dtp_ValueChanged
 end sub
 public shared sub Main() 
   Application.Run(new DTPicker())
 end sub
 private sub UpdateLabels()
   Console.WriteLine(dtp.Value.ToString())
   Console.WriteLine(dtp.Value.ToLongDateString())
   Console.WriteLine(dtp.Value.ToLongTimeString())
   Console.WriteLine(dtp.Value.ToShortDateString())
   Console.WriteLine(dtp.Value.ToShortTimeString())
 end sub
 private sub me_Load(ByVal sender as object,ByVal e as EventArgs)
   UpdateLabels()
 end sub
 private sub dtp_ValueChanged(ByVal sender as object,ByVal e as EventArgs)
   UpdateLabels()
 end sub
 private sub txtCustomString_TextChanged(ByVal sender as object,ByVal e as EventArgs)
   UpdateLabels()
 end sub

end class</source>

Get value from DateTimePicker

<source lang="vbnet">Imports System.Windows.Forms public class UseMonthCalendarAndDateTimePicker

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
       " ----- Check and display only valid dates.
       If (IsDate(TextBox1.Text) = True) Then
           Label1.Text = Date.Parse(TextBox1.Text).ToShortDateString
       Else
           Label1.Text = ""
       End If
   End Sub
   Private Sub DateTimePicker1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DateTimePicker1.ValueChanged
       " ----- Show the selected date.
       Label2.Text = DateTimePicker1.Value.ToShortDateString
   End Sub
   Private Sub MonthCalendar1_DateChanged(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DateRangeEventArgs) Handles MonthCalendar1.DateChanged
       " ---- Show the slected date.
       Label3.Text = MonthCalendar1.SelectionStart.ToShortDateString
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "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.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.TextBox1 = New System.Windows.Forms.TextBox
       Me.DateTimePicker1 = New System.Windows.Forms.DateTimePicker
       Me.MonthCalendar1 = New System.Windows.Forms.MonthCalendar
       Me.Label1 = New System.Windows.Forms.Label
       Me.Label2 = New System.Windows.Forms.Label
       Me.Label3 = New System.Windows.Forms.Label
       Me.Label4 = New System.Windows.Forms.Label
       Me.Label5 = New System.Windows.Forms.Label
       Me.Label6 = New System.Windows.Forms.Label
       Me.SuspendLayout()
       "
       "TextBox1
       "
       Me.TextBox1.Location = New System.Drawing.Point(72, 8)
       Me.TextBox1.Name = "TextBox1"
       Me.TextBox1.Size = New System.Drawing.Size(120, 20)
       Me.TextBox1.TabIndex = 0
       Me.TextBox1.Text = "2007-12-07"
       "
       "DateTimePicker1
       "
       Me.DateTimePicker1.Location = New System.Drawing.Point(72, 48)
       Me.DateTimePicker1.Name = "DateTimePicker1"
       Me.DateTimePicker1.Size = New System.Drawing.Size(200, 20)
       Me.DateTimePicker1.TabIndex = 1
       Me.DateTimePicker1.Value = New Date(2007, 12, 7, 0, 0, 0, 0)
       "
       "MonthCalendar1
       "
       Me.MonthCalendar1.Location = New System.Drawing.Point(72, 88)
       Me.MonthCalendar1.Name = "MonthCalendar1"
       Me.MonthCalendar1.TabIndex = 2
       "
       "Label1
       "
       Me.Label1.AutoSize = True
       Me.Label1.Location = New System.Drawing.Point(296, 16)
       Me.Label1.Name = "Label1"
       Me.Label1.Size = New System.Drawing.Size(39, 13)
       Me.Label1.TabIndex = 3
       Me.Label1.Text = "Label1"
       "
       "Label2
       "
       Me.Label2.AutoSize = True
       Me.Label2.Location = New System.Drawing.Point(296, 48)
       Me.Label2.Name = "Label2"
       Me.Label2.Size = New System.Drawing.Size(39, 13)
       Me.Label2.TabIndex = 4
       Me.Label2.Text = "Label2"
       "
       "Label3
       "
       Me.Label3.AutoSize = True
       Me.Label3.Location = New System.Drawing.Point(296, 88)
       Me.Label3.Name = "Label3"
       Me.Label3.Size = New System.Drawing.Size(39, 13)
       Me.Label3.TabIndex = 5
       Me.Label3.Text = "Label3"
       "
       "Label4
       "
       Me.Label4.AutoSize = True
       Me.Label4.Location = New System.Drawing.Point(8, 10)
       Me.Label4.Name = "Label4"
       Me.Label4.Size = New System.Drawing.Size(57, 13)
       Me.Label4.TabIndex = 6
       Me.Label4.Text = "Plain Text:"
       "
       "Label5
       "
       Me.Label5.AutoSize = True
       Me.Label5.Location = New System.Drawing.Point(8, 50)
       Me.Label5.Name = "Label5"
       Me.Label5.Size = New System.Drawing.Size(40, 13)
       Me.Label5.TabIndex = 7
       Me.Label5.Text = "Picker:"
       "
       "Label6
       "
       Me.Label6.AutoSize = True
       Me.Label6.Location = New System.Drawing.Point(8, 88)
       Me.Label6.Name = "Label6"
       Me.Label6.Size = New System.Drawing.Size(52, 13)
       Me.Label6.TabIndex = 8
       Me.Label6.Text = "Calendar:"
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(510, 258)
       Me.Controls.Add(Me.Label6)
       Me.Controls.Add(Me.Label5)
       Me.Controls.Add(Me.Label4)
       Me.Controls.Add(Me.Label3)
       Me.Controls.Add(Me.Label2)
       Me.Controls.Add(Me.Label1)
       Me.Controls.Add(Me.MonthCalendar1)
       Me.Controls.Add(Me.DateTimePicker1)
       Me.Controls.Add(Me.TextBox1)
       Me.Name = "Form1"
       Me.Text = "Using Controls to Enter or Select a Date"
       Me.ResumeLayout(False)
       Me.PerformLayout()
   End Sub
   Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
   Friend WithEvents DateTimePicker1 As System.Windows.Forms.DateTimePicker
   Friend WithEvents MonthCalendar1 As System.Windows.Forms.MonthCalendar
   Friend WithEvents Label1 As System.Windows.Forms.Label
   Friend WithEvents Label2 As System.Windows.Forms.Label
   Friend WithEvents Label3 As System.Windows.Forms.Label
   Friend WithEvents Label4 As System.Windows.Forms.Label
   Friend WithEvents Label5 As System.Windows.Forms.Label
   Friend WithEvents Label6 As System.Windows.Forms.Label

End Class</source>