DateRangeEventHandler Delegat

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Stellt die Methode dar, die das DateChanged-Ereignis oder das DateSelected-Ereignis eines MonthCalendar behandelt.

public delegate void DateRangeEventHandler(System::Object ^ sender, DateRangeEventArgs ^ e);

public delegate void DateRangeEventHandler(object? sender, DateRangeEventArgs e);

type DateRangeEventHandler = delegate of obj * DateRangeEventArgs -> unit

Public Delegate Sub DateRangeEventHandler(sender As Object, e As DateRangeEventArgs)

Parameter

sender

Object

Die Quelle des Ereignisses.

e

DateRangeEventArgs

Ein DateRangeEventArgs, das die Ereignisdaten enthält.

Beispiele

Im folgenden Beispiel wird ein Formular mit einem MonthCalendar Steuerelement angezeigt, das ein Kalenderjahr anzeigt. Das Beispiel veranschaulicht das Festlegen von Eigenschaften wie BackColor, ForeColor, TitleBackColor, TitleForeColorCalendarDimensions, und TrailingForeColor zum Anpassen des Erscheinungsbilds des Kalendersteuerelements. Andere Eigenschaften wie AnnuallyBoldedDates, BoldedDatesund MonthlyBoldedDates werden festgelegt, um anzupassen, welche Datumsangaben fett formatiert werden. Im Beispiel werden auch Eigenschaften festgelegt, um das Kalenderformat zu ändern, einschließlich FirstDayOfWeek, MaxDate, MinDateund MaxSelectionCount. Die DateSelected Ereignisse und DateChanged werden ebenfalls behandelt, und ihre status im Formular angezeigt.

#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

Hinweise

Beim Erstellen eines DateRangeEventArgs-Delegaten bestimmen Sie die Methode für die Ereignisbehandlung. Um dem Ereignishandler das Ereignis zuzuordnen, fügen Sie dem Ereignis eine Instanz des Delegaten hinzu. Der Ereignishandler wird bei jedem Eintreten des Ereignisses aufgerufen, sofern der Delegat nicht entfernt wird. Weitere Informationen zu Ereignishandlerdelegaten finden Sie unter Behandeln und Auslösen von Ereignissen.

Erweiterungsmethoden

Weitere Informationen

• DateRangeEventArgs
• MonthCalendar