MonthCalendar.DateChanged Událost
Definice
Důležité
Některé informace platí pro předběžně vydaný produkt, který se může zásadně změnit, než ho výrobce nebo autor vydá. Microsoft neposkytuje žádné záruky, výslovné ani předpokládané, týkající se zde uváděných informací.
Nastane, když se změní datum vybrané v souboru MonthCalendar .
public:
event System::Windows::Forms::DateRangeEventHandler ^ DateChanged;public event System.Windows.Forms.DateRangeEventHandler DateChanged;public event System.Windows.Forms.DateRangeEventHandler? DateChanged;member this.DateChanged : System.Windows.Forms.DateRangeEventHandler Public Custom Event DateChanged As DateRangeEventHandler Event Type
Příklady
Následující příklad kódu vytvoří SelectionRange, nastaví jeho Start vlastnosti a End a přiřadí SelectionRangeSelectionRange k vlastnosti MonthCalendar ovládacího prvku . Při vyvolání DateChangedStart události se v textových polích zobrazí hodnoty vlastností a End . Tento příklad vyžaduje, abyste měli ovládací Form prvek se dvěma TextBox ovládacími prvky, Buttona ovládacím prvku MonthCalendar .
private:
void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
// Create a SelectionRange object and set its Start and End properties.
SelectionRange^ sr = gcnew SelectionRange;
sr->Start = DateTime::Parse( this->textBox1->Text );
sr->End = DateTime::Parse( this->textBox2->Text );
/* Assign the SelectionRange object to the
SelectionRange property of the MonthCalendar control. */
this->monthCalendar1->SelectionRange = sr;
}
void monthCalendar1_DateChanged( Object^ /*sender*/, DateRangeEventArgs^ /*e*/ )
{
/* Display the Start and End property values of
the SelectionRange object in the text boxes. */
this->textBox1->Text = monthCalendar1->SelectionRange->Start.Date.ToShortDateString();
this->textBox2->Text = monthCalendar1->SelectionRange->End.Date.ToShortDateString();
}
private void button1_Click(object sender, System.EventArgs e)
{
// Create a SelectionRange object and set its Start and End properties.
SelectionRange sr = new SelectionRange();
sr.Start = DateTime.Parse(this.textBox1.Text);
sr.End = DateTime.Parse(this.textBox2.Text);
/* Assign the SelectionRange object to the
SelectionRange property of the MonthCalendar control. */
this.monthCalendar1.SelectionRange = sr;
}
private void monthCalendar1_DateChanged(object sender, DateRangeEventArgs e)
{
/* Display the Start and End property values of
the SelectionRange object in the text boxes. */
this.textBox1.Text =
monthCalendar1.SelectionRange.Start.Date.ToShortDateString();
this.textBox2.Text =
monthCalendar1.SelectionRange.End.Date.ToShortDateString();
}
Private Sub button1_Click(sender As Object, _
e As EventArgs) Handles button1.Click
' Create a SelectionRange object and set its Start and End properties.
Dim sr As New SelectionRange()
sr.Start = DateTime.Parse(Me.textBox1.Text)
sr.End = DateTime.Parse(Me.textBox2.Text)
' Assign the SelectionRange object to the
' SelectionRange property of the MonthCalendar control.
Me.monthCalendar1.SelectionRange = sr
End Sub
Private Sub monthCalendar1_DateChanged(sender As Object, _
e As DateRangeEventArgs) Handles monthCalendar1.DateChanged
' Display the Start and End property values of
' the SelectionRange object in the text boxes.
Me.textBox1.Text = monthCalendar1.SelectionRange.Start.Date.ToShortDateString()
Me.textBox2.Text = monthCalendar1.SelectionRange.End.Date.ToShortDateString()
End Sub
Následující příklad kódu zobrazí formulář obsahující ovládací prvek MonthCalendar , který zobrazuje jeden kalendářní rok. Příklad ukazuje nastavení BackColorvlastností , , ForeColor, TitleBackColorTitleForeColor, CalendarDimensionsa TrailingForeColor pro přizpůsobení vzhledu ovládacího prvku kalendáře. Ostatní vlastnosti, jako AnnuallyBoldedDatesjsou , aMonthlyBoldedDates, BoldedDatesse nastaví tak, aby se přizpůsobila kalendářním datům, která mají být tučná. V příkladu se FirstDayOfWeektaké nastaví vlastnosti , MaxDateMinDate, a MaxSelectionCount pro změnu formátu kalendáře. Zpracovávají DateSelected se také události a DateChanged a jejich stav se zobrazí ve formuláři.
#using <System.dll>
#using <System.Windows.Forms.dll>
#using <System.Drawing.dll>
using namespace System;
using namespace System::Drawing;
using namespace System::Windows::Forms;
public ref class Form1: public System::Windows::Forms::Form
{
private:
System::Windows::Forms::MonthCalendar^ monthCalendar1;
System::Windows::Forms::TextBox^ textBox1;
public:
Form1()
{
this->textBox1 = gcnew System::Windows::Forms::TextBox;
this->textBox1->BorderStyle = System::Windows::Forms::BorderStyle::FixedSingle;
this->textBox1->Location = System::Drawing::Point( 48, 488 );
this->textBox1->Multiline = true;
this->textBox1->ReadOnly = true;
this->textBox1->Size = System::Drawing::Size( 824, 32 );
// Create the calendar.
this->monthCalendar1 = gcnew System::Windows::Forms::MonthCalendar;
// Set the calendar location.
this->monthCalendar1->Location = System::Drawing::Point( 47, 16 );
// Change the color.
this->monthCalendar1->BackColor = System::Drawing::SystemColors::Info;
this->monthCalendar1->ForeColor = System::Drawing::Color::FromArgb( ((System::Byte)(192)) ),((System::Byte)(0)),((System::Byte)(192));
this->monthCalendar1->TitleBackColor = System::Drawing::Color::Purple;
this->monthCalendar1->TitleForeColor = System::Drawing::Color::Yellow;
this->monthCalendar1->TrailingForeColor = System::Drawing::Color::FromArgb( ((System::Byte)(192)) ),((System::Byte)(192)),((System::Byte)(0));
// Add dates to the AnnuallyBoldedDates array.
array<System::DateTime>^ temp1 = {System::DateTime( 2002, 4, 20, 0, 0, 0, 0 ),System::DateTime( 2002, 4, 28, 0, 0, 0, 0 ),System::DateTime( 2002, 5, 5, 0, 0, 0, 0 ),System::DateTime( 2002, 7, 4, 0, 0, 0, 0 ),System::DateTime( 2002, 12, 15, 0, 0, 0, 0 ),System::DateTime( 2002, 12, 18, 0, 0, 0, 0 )};
this->monthCalendar1->AnnuallyBoldedDates = temp1;
// Add dates to BoldedDates array.
array<System::DateTime>^ temp2 = {System::DateTime( 2002, 9, 26, 0, 0, 0, 0 )};
this->monthCalendar1->BoldedDates = temp2;
// Add dates to MonthlyBoldedDates array.
array<System::DateTime>^ temp5 = {System::DateTime( 2002, 1, 15, 0, 0, 0, 0 ),System::DateTime( 2002, 1, 30, 0, 0, 0, 0 )};
this->monthCalendar1->MonthlyBoldedDates = temp5;
// Configure the calendar to display 3 rows by 4 columns of months.
this->monthCalendar1->CalendarDimensions = System::Drawing::Size( 4, 3 );
// Set week to begin on Monday.
this->monthCalendar1->FirstDayOfWeek = System::Windows::Forms::Day::Monday;
// Set the maximum visible date on the calendar to 12/31/2010.
this->monthCalendar1->MaxDate = System::DateTime( 2010, 12, 31, 0, 0, 0, 0 );
// Set the minimum visible date on calendar to 12/31/2010.
this->monthCalendar1->MinDate = System::DateTime( 1999, 1, 1, 0, 0, 0, 0 );
// Only allow 21 days to be selected at the same time.
this->monthCalendar1->MaxSelectionCount = 21;
// Set the calendar to move one month at a time when navigating using the arrows.
this->monthCalendar1->ScrollChange = 1;
// Do not show the S"Today" banner.
this->monthCalendar1->ShowToday = false;
// Do not circle today's date.
this->monthCalendar1->ShowTodayCircle = false;
// Show the week numbers to the left of each week.
this->monthCalendar1->ShowWeekNumbers = true;
// Add event handlers for the DateSelected and DateChanged events
this->monthCalendar1->DateSelected += gcnew System::Windows::Forms::DateRangeEventHandler( this, &Form1::monthCalendar1_DateSelected );
this->monthCalendar1->DateChanged += gcnew System::Windows::Forms::DateRangeEventHandler( this, &Form1::monthCalendar1_DateChanged );
// Set up how the form should be displayed and add the controls to the form.
this->ClientSize = System::Drawing::Size( 920, 566 );
array<System::Windows::Forms::Control^>^temp0 = {this->textBox1,this->monthCalendar1};
this->Controls->AddRange( temp0 );
this->Text = "Month Calendar Example";
}
private:
void monthCalendar1_DateSelected( Object^ /*sender*/, System::Windows::Forms::DateRangeEventArgs^ e )
{
// Show the start and end dates in the text box.
this->textBox1->Text = String::Format( "Date Selected: Start = {0} : End = {1}", e->Start.ToShortDateString(), e->End.ToShortDateString() );
}
void monthCalendar1_DateChanged( Object^ /*sender*/, System::Windows::Forms::DateRangeEventArgs^ e )
{
// Show the start and end dates in the text box.
this->textBox1->Text = String::Format( "Date Changed: Start = {0} : End = {1}", e->Start.ToShortDateString(), e->End.ToShortDateString() );
}
};
[STAThread]
int main()
{
Application::Run( gcnew Form1 );
}
using System;
using System.Drawing;
using System.Windows.Forms;
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.MonthCalendar monthCalendar1;
private System.Windows.Forms.TextBox textBox1;
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
public Form1()
{
this.textBox1 = new System.Windows.Forms.TextBox();
this.textBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.textBox1.Location = new System.Drawing.Point(48, 488);
this.textBox1.Multiline = true;
this.textBox1.ReadOnly = true;
this.textBox1.Size = new System.Drawing.Size(824, 32);
// Create the calendar.
this.monthCalendar1 = new System.Windows.Forms.MonthCalendar();
// Set the calendar location.
this.monthCalendar1.Location = new System.Drawing.Point(47, 16);
// Change the color.
this.monthCalendar1.BackColor = System.Drawing.SystemColors.Info;
this.monthCalendar1.ForeColor = System.Drawing.Color.FromArgb(
((System.Byte)(192)), ((System.Byte)(0)), ((System.Byte)(192)));
this.monthCalendar1.TitleBackColor = System.Drawing.Color.Purple;
this.monthCalendar1.TitleForeColor = System.Drawing.Color.Yellow;
this.monthCalendar1.TrailingForeColor = System.Drawing.Color.FromArgb(
((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(0)));
// Add dates to the AnnuallyBoldedDates array.
this.monthCalendar1.AnnuallyBoldedDates =
new System.DateTime[] { new System.DateTime(2002, 4, 20, 0, 0, 0, 0),
new System.DateTime(2002, 4, 28, 0, 0, 0, 0),
new System.DateTime(2002, 5, 5, 0, 0, 0, 0),
new System.DateTime(2002, 7, 4, 0, 0, 0, 0),
new System.DateTime(2002, 12, 15, 0, 0, 0, 0),
new System.DateTime(2002, 12, 18, 0, 0, 0, 0)};
// Add dates to BoldedDates array.
this.monthCalendar1.BoldedDates = new System.DateTime[] {new System.DateTime(2002, 9, 26, 0, 0, 0, 0)};
// Add dates to MonthlyBoldedDates array.
this.monthCalendar1.MonthlyBoldedDates =
new System.DateTime[] {new System.DateTime(2002, 1, 15, 0, 0, 0, 0),
new System.DateTime(2002, 1, 30, 0, 0, 0, 0)};
// Configure the calendar to display 3 rows by 4 columns of months.
this.monthCalendar1.CalendarDimensions = new System.Drawing.Size(4, 3);
// Set week to begin on Monday.
this.monthCalendar1.FirstDayOfWeek = System.Windows.Forms.Day.Monday;
// Set the maximum visible date on the calendar to 12/31/2010.
this.monthCalendar1.MaxDate = new System.DateTime(2010, 12, 31, 0, 0, 0, 0);
// Set the minimum visible date on calendar to 12/31/2010.
this.monthCalendar1.MinDate = new System.DateTime(1999, 1, 1, 0, 0, 0, 0);
// Only allow 21 days to be selected at the same time.
this.monthCalendar1.MaxSelectionCount = 21;
// Set the calendar to move one month at a time when navigating using the arrows.
this.monthCalendar1.ScrollChange = 1;
// Do not show the "Today" banner.
this.monthCalendar1.ShowToday = false;
// Do not circle today's date.
this.monthCalendar1.ShowTodayCircle = false;
// Show the week numbers to the left of each week.
this.monthCalendar1.ShowWeekNumbers = true;
// Add event handlers for the DateSelected and DateChanged events
this.monthCalendar1.DateSelected += new System.Windows.Forms.DateRangeEventHandler(this.monthCalendar1_DateSelected);
this.monthCalendar1.DateChanged += new System.Windows.Forms.DateRangeEventHandler(this.monthCalendar1_DateChanged);
// Set up how the form should be displayed and add the controls to the form.
this.ClientSize = new System.Drawing.Size(920, 566);
this.Controls.AddRange(new System.Windows.Forms.Control[] {this.textBox1, this.monthCalendar1});
this.Text = "Month Calendar Example";
}
private void monthCalendar1_DateSelected(object sender, System.Windows.Forms.DateRangeEventArgs e)
{
// Show the start and end dates in the text box.
this.textBox1.Text = "Date Selected: Start = " +
e.Start.ToShortDateString() + " : End = " + e.End.ToShortDateString();
}
private void monthCalendar1_DateChanged(object sender, System.Windows.Forms.DateRangeEventArgs e)
{
// Show the start and end dates in the text box.
this.textBox1.Text = "Date Changed: Start = " +
e.Start.ToShortDateString() + " : End = " + e.End.ToShortDateString();
}
}
Imports System.Drawing
Imports System.Windows.Forms
Public NotInheritable Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents MonthCalendar1 As System.Windows.Forms.MonthCalendar
Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
<System.STAThread()> _
Public Shared Sub Main()
System.Windows.Forms.Application.Run(New Form1)
End Sub
Public Sub New()
MyBase.New()
Me.TextBox1 = New System.Windows.Forms.TextBox
Me.TextBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.TextBox1.Location = New System.Drawing.Point(48, 488)
Me.TextBox1.Multiline = True
Me.TextBox1.ReadOnly = True
Me.TextBox1.Size = New System.Drawing.Size(824, 32)
' Create the calendar.
Me.MonthCalendar1 = New System.Windows.Forms.MonthCalendar
' Set the calendar location.
Me.MonthCalendar1.Location = New System.Drawing.Point(47, 16)
' Change the color.
Me.MonthCalendar1.BackColor = System.Drawing.SystemColors.Info
Me.MonthCalendar1.ForeColor = System.Drawing.Color.FromArgb( _
CType(192, System.Byte), CType(0, System.Byte), CType(192, System.Byte))
Me.MonthCalendar1.TitleBackColor = System.Drawing.Color.Purple
Me.MonthCalendar1.TitleForeColor = System.Drawing.Color.Yellow
Me.MonthCalendar1.TrailingForeColor = System.Drawing.Color.FromArgb( _
CType(192, System.Byte), CType(192, System.Byte), CType(0, System.Byte))
' Add dates to the AnnuallyBoldedDates array.
Me.MonthCalendar1.AnnuallyBoldedDates = New System.DateTime() _
{New System.DateTime(2002, 4, 20, 0, 0, 0, 0), _
New System.DateTime(2002, 4, 28, 0, 0, 0, 0), _
New System.DateTime(2002, 5, 5, 0, 0, 0, 0), _
New System.DateTime(2002, 7, 4, 0, 0, 0, 0), _
New System.DateTime(2002, 12, 15, 0, 0, 0, 0), _
New System.DateTime(2002, 12, 18, 0, 0, 0, 0)}
' Add dates to BoldedDates array.
Me.MonthCalendar1.BoldedDates = New System.DateTime() {New System.DateTime(2002, 9, 26, 0, 0, 0, 0)}
' Add dates to MonthlyBoldedDates array.
Me.MonthCalendar1.MonthlyBoldedDates = New System.DateTime() _
{New System.DateTime(2002, 1, 15, 0, 0, 0, 0), _
New System.DateTime(2002, 1, 30, 0, 0, 0, 0)}
' Configure the calendar to display 3 rows by 4 columns of months.
Me.MonthCalendar1.CalendarDimensions = New System.Drawing.Size(4, 3)
' Set the week to begin on Monday.
Me.MonthCalendar1.FirstDayOfWeek = System.Windows.Forms.Day.Monday
' Sets the maximum visible date on the calendar to 12/31/2010.
Me.MonthCalendar1.MaxDate = New System.DateTime(2010, 12, 31, 0, 0, 0, 0)
' Set the minimum visible date on the calendar to 12/31/2010.
Me.MonthCalendar1.MinDate = New System.DateTime(1999, 1, 1, 0, 0, 0, 0)
' Only allow 21 days to be selected at the same time.
Me.MonthCalendar1.MaxSelectionCount = 21
' Set the calendar to move one month at a time when navigating using the arrows.
Me.MonthCalendar1.ScrollChange = 1
' Do not show the "Today" banner.
Me.MonthCalendar1.ShowToday = False
' Do not circle today's date.
Me.MonthCalendar1.ShowTodayCircle = False
' Show the week numbers to the left of each week.
Me.MonthCalendar1.ShowWeekNumbers = True
' Set up how the form should be displayed and add the controls to the form.
Me.ClientSize = New System.Drawing.Size(920, 566)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox1, Me.MonthCalendar1})
Me.Text = "Month Calendar Example"
End Sub
Private Sub monthCalendar1_DateSelected(ByVal sender As Object, _
ByVal e As System.Windows.Forms.DateRangeEventArgs) Handles MonthCalendar1.DateSelected
' Show the start and end dates in the text box.
Me.TextBox1.Text = "Date Selected: Start = " + _
e.Start.ToShortDateString() + " : End = " + e.End.ToShortDateString()
End Sub
Private Sub monthCalendar1_DateChanged(ByVal sender As Object, _
ByVal e As System.Windows.Forms.DateRangeEventArgs) Handles MonthCalendar1.DateChanged
' Show the start and end dates in the text box.
Me.TextBox1.Text = "Date Changed: Start = " + _
e.Start.ToShortDateString() + " : End = " + e.End.ToShortDateString()
End Sub
End Class
Poznámky
Událost DateChanged nastane během výběru libovolného data, ať už pomocí myši, klávesnice nebo kódu. Událost DateSelected je podobná, ale nastane pouze na konci volby data provedeného pomocí myši.
Další informace o zpracování událostí najdete v tématu Zpracování a vyvolávání událostí.
Platí pro
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