NumericUpDown.Value Properti

Referensi

Definisi

Ruang nama:: System.Windows.Forms

Rakitan:: System.Windows.Forms.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mendapatkan atau mengatur nilai yang ditetapkan ke kotak putar (juga dikenal sebagai kontrol naik turun).

public:
 property System::Decimal Value { System::Decimal get(); void set(System::Decimal value); };

[System.ComponentModel.Bindable(true)]
public decimal Value { get; set; }

[<System.ComponentModel.Bindable(true)>]
member this.Value : decimal with get, set

Public Property Value As Decimal

Nilai Properti

Decimal

Nilai numerik NumericUpDown kontrol.

Atribut: BindableAttribute

Pengecualian

ArgumentOutOfRangeException

Nilai yang ditetapkan kurang dari Minimum nilai properti.

-atau-

Nilai yang ditetapkan lebih besar dari Maximum nilai properti.

Contoh

Contoh kode berikut membuat dan menginisialisasi NumericUpDown kontrol, mengatur beberapa properti umumnya, dan memungkinkan pengguna untuk mengubah beberapa properti ini pada durasi. Kode ini mengasumsikan tiga CheckBox kontrol telah ditempatkan pada formulir dan penangan untuk peristiwa mereka Click telah diinstansiasi. Properti DecimalPlaces, ThousandsSeparator, dan Hexadecimal diatur pada Click peristiwa setiap kotak centang.

public:
   void InstantiateMyNumericUpDown()
   {
      // Create and initialize a NumericUpDown control.
      numericUpDown1 = gcnew NumericUpDown;
      
      // Dock the control to the top of the form.
      numericUpDown1->Dock = System::Windows::Forms::DockStyle::Top;
      
      // Set the Minimum, Maximum, and initial Value.
      numericUpDown1->Value = 5;
      numericUpDown1->Maximum = 2500;
      numericUpDown1->Minimum = -100;
      
      // Add the NumericUpDown to the Form.
      Controls->Add( numericUpDown1 );
   }

private:
   // Check box to toggle decimal places to be displayed.
   void checkBox1_Click( Object^ sender, EventArgs^ e )
   {
      /* If DecimalPlaces is greater than 0, set them to 0 and round the 
         current Value; otherwise, set DecimalPlaces to 2 and change the 
         Increment to 0.25. */
      if ( numericUpDown1->DecimalPlaces > 0 )
      {
         numericUpDown1->DecimalPlaces = 0;
         numericUpDown1->Value = Decimal::Round( numericUpDown1->Value, 0 );
      }
      else
      {
         numericUpDown1->DecimalPlaces = 2;
         numericUpDown1->Increment = Decimal(0.25);
      }
   }

   // Check box to toggle thousands separators to be displayed.
   void checkBox2_Click( Object^ sender, EventArgs^ e )
   {
      /* If ThousandsSeparator is true, set it to false; 
         otherwise, set it to true. */
      if ( numericUpDown1->ThousandsSeparator )
      {
         numericUpDown1->ThousandsSeparator = false;
      }
      else
      {
         numericUpDown1->ThousandsSeparator = true;
      }
   }

   // Check box to toggle hexadecimal to be displayed.
   void checkBox3_Click( Object^ sender, EventArgs^ e )
   {
      /* If Hexadecimal is true, set it to false; 
         otherwise, set it to true. */
      if ( numericUpDown1->Hexadecimal )
      {
         numericUpDown1->Hexadecimal = false;
      }
      else
      {
         numericUpDown1->Hexadecimal = true;
      }
   }

public void InstantiateMyNumericUpDown()
{
   // Create and initialize a NumericUpDown control.
   numericUpDown1 = new NumericUpDown();

   // Dock the control to the top of the form.
   numericUpDown1.Dock = System.Windows.Forms.DockStyle.Top;

   // Set the Minimum, Maximum, and initial Value.
   numericUpDown1.Value = 5;
   numericUpDown1.Maximum = 2500;
   numericUpDown1.Minimum = -100;
   
   // Add the NumericUpDown to the Form.
   Controls.Add(numericUpDown1);
}

// Check box to toggle decimal places to be displayed.
private void checkBox1_Click(Object sender,
                             EventArgs e)
{
   /* If DecimalPlaces is greater than 0, set them to 0 and round the 
      current Value; otherwise, set DecimalPlaces to 2 and change the 
      Increment to 0.25. */
   if (numericUpDown1.DecimalPlaces > 0)
   {
      numericUpDown1.DecimalPlaces = 0;
      numericUpDown1.Value = Decimal.Round(numericUpDown1.Value, 0);
   }
   else
   {
      numericUpDown1.DecimalPlaces = 2;
      numericUpDown1.Increment = 0.25M;
   }
}

// Check box to toggle thousands separators to be displayed.
private void checkBox2_Click(Object sender,
                             EventArgs e)
{   
   /* If ThousandsSeparator is true, set it to false; 
      otherwise, set it to true. */
   if (numericUpDown1.ThousandsSeparator)
   {
      numericUpDown1.ThousandsSeparator = false;
   }
   else
   {
      numericUpDown1.ThousandsSeparator = true;
   }
}

// Check box to toggle hexadecimal to be displayed.
private void checkBox3_Click(Object sender, 
                             EventArgs e)
{
   /* If Hexadecimal is true, set it to false; 
      otherwise, set it to true. */    
   if (numericUpDown1.Hexadecimal)
   {
      numericUpDown1.Hexadecimal = false;
   }
   else
   {
      numericUpDown1.Hexadecimal = true;
   }
}

Public Sub InstantiateMyNumericUpDown()
    ' Create and initialize a NumericUpDown control.
    numericUpDown1 = New NumericUpDown()
    
    ' Dock the control to the top of the form.
    numericUpDown1.Dock = System.Windows.Forms.DockStyle.Top
    
    ' Set the Minimum, Maximum, and initial Value.
    numericUpDown1.Value = 5
    numericUpDown1.Maximum = 2500
    numericUpDown1.Minimum = - 100
    
    ' Add the NumericUpDown to the Form.
    Controls.Add(numericUpDown1)
End Sub    

' Check box to toggle decimal places to be displayed.
Private Sub checkBox1_Click(sender As Object, e As EventArgs)
    ' If DecimalPlaces is greater than 0, set them to 0 and round the
    ' current Value; otherwise, set DecimalPlaces to 2 and change the
    ' Increment to 0.25. 
    If numericUpDown1.DecimalPlaces > 0 Then
        numericUpDown1.DecimalPlaces = 0
        numericUpDown1.Value = Decimal.Round(numericUpDown1.Value, 0)
    Else
        numericUpDown1.DecimalPlaces = 2
        numericUpDown1.Increment = 0.25D
    End If
End Sub    

' Check box to toggle thousands separators to be displayed.
Private Sub checkBox2_Click(sender As Object, e As EventArgs)
    ' If ThousandsSeparator is true, set it to false;
    ' otherwise, set it to true. 
    If numericUpDown1.ThousandsSeparator Then
        numericUpDown1.ThousandsSeparator = False
    Else
        numericUpDown1.ThousandsSeparator = True
    End If
End Sub    

' Check box to toggle hexadecimal to be displayed.
Private Sub checkBox3_Click(sender As Object, e As EventArgs)
    ' If Hexadecimal is true, set it to false;
    ' otherwise, set it to true. 
    If numericUpDown1.Hexadecimal Then
        numericUpDown1.Hexadecimal = False
    Else
        numericUpDown1.Hexadecimal = True
    End If
End Sub

Keterangan

Value Saat properti diatur, nilai baru divalidasi berada di antara Minimum nilai dan Maximum . Setelah ini, UpdateEditText metode dipanggil untuk memperbarui tampilan kotak putar dengan nilai baru dalam format yang sesuai.

Berlaku untuk

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