MonthCalendar.ShowWeekNumbers Property

public:
 property bool ShowWeekNumbers { bool get(); void set(bool value); };

public bool ShowWeekNumbers { get; set; }

member this.ShowWeekNumbers : bool with get, set

Public Property ShowWeekNumbers As Boolean

Property Value

true if the week numbers are displayed; otherwise, false. The default is false.

Examples

The following code example displays a form containing a MonthCalendar control that displays one calendar year. The example demonstrates setting the BackColor, ForeColor, TitleBackColor, TitleForeColor, CalendarDimensions, and TrailingForeColor properties to customize the look of the calendar control. Other properties such as AnnuallyBoldedDates, BoldedDates, and MonthlyBoldedDates are set to customize which dates are bold. The example also sets the FirstDayOfWeek, MaxDate, MinDate, and MaxSelectionCount properties to change the calendar format. The DateSelected and DateChanged events are also handled and their status is displayed on the form.

#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