ScrollEventArgs.NewValue Property
Important
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Gets or sets the new Value of the scroll bar.
public:
property int NewValue { int get(); void set(int value); };
public int NewValue { get; set; }
member this.NewValue : int with get, set
Public Property NewValue As Integer
The numeric value that the Value property will be changed to.
The following code example demonstrates the use of this member.
void AddMyScrollEventHandlers()
{
// Create and initialize a VScrollBar.
VScrollBar^ vScrollBar1 = gcnew VScrollBar;
// Add event handlers for the OnScroll and OnValueChanged events.
vScrollBar1->Scroll += gcnew ScrollEventHandler( this, &Form1::vScrollBar1_Scroll );
vScrollBar1->ValueChanged += gcnew EventHandler( this, &Form1::vScrollBar1_ValueChanged );
}
// Create the ValueChanged event handler.
void vScrollBar1_ValueChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
// Display the new value in the label.
label1->Text = String::Format( "vScrollBar Value:(OnValueChanged Event) {0}", vScrollBar1->Value );
}
// Create the Scroll event handler.
void vScrollBar1_Scroll( Object^ /*sender*/, ScrollEventArgs^ e )
{
// Display the new value in the label.
label1->Text = String::Format( "VScrollBar Value:(OnScroll Event) {0}", e->NewValue );
}
void button1_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
{
// Add 40 to the Value property if it will not exceed the Maximum value.
if ( vScrollBar1->Value + 40 < vScrollBar1->Maximum )
{
vScrollBar1->Value = vScrollBar1->Value + 40;
}
}
private void AddMyScrollEventHandlers()
{
// Create and initialize a VScrollBar.
VScrollBar vScrollBar1 = new VScrollBar();
// Add event handlers for the OnScroll and OnValueChanged events.
vScrollBar1.Scroll += new ScrollEventHandler(
this.vScrollBar1_Scroll);
vScrollBar1.ValueChanged += new EventHandler(
this.vScrollBar1_ValueChanged);
}
// Create the ValueChanged event handler.
private void vScrollBar1_ValueChanged(Object sender,
EventArgs e)
{
// Display the new value in the label.
label1.Text = "vScrollBar Value:(OnValueChanged Event) " + vScrollBar1.Value.ToString();
}
// Create the Scroll event handler.
private void vScrollBar1_Scroll(Object sender,
ScrollEventArgs e)
{
// Display the new value in the label.
label1.Text = "VScrollBar Value:(OnScroll Event) " + e.NewValue.ToString();
}
private void button1_Click(Object sender,
EventArgs e)
{
// Add 40 to the Value property if it will not exceed the Maximum value.
if (vScrollBar1.Value + 40 < vScrollBar1.Maximum)
{
vScrollBar1.Value = vScrollBar1.Value + 40;
}
}
Private Sub AddMyScrollEventHandlers()
' Create and initialize a VScrollBar.
Dim vScrollBar1 As New VScrollBar()
' Add event handlers for the OnScroll and OnValueChanged events.
AddHandler vScrollBar1.Scroll, AddressOf Me.vScrollBar1_Scroll
AddHandler vScrollBar1.ValueChanged, AddressOf Me.vScrollBar1_ValueChanged
End Sub
' Create the ValueChanged event handler.
Private Sub vScrollBar1_ValueChanged(sender As Object, e As EventArgs)
' Display the new value in the label.
label1.Text = "vScrollBar Value:(OnValueChanged Event) " & _
vScrollBar1.Value.ToString()
End Sub
' Create the Scroll event handler.
Private Sub vScrollBar1_Scroll(sender As Object, e As ScrollEventArgs)
' Display the new value in the label.
label1.Text = "VScrollBar Value:(OnScroll Event) " & _
e.NewValue.ToString()
End Sub
Private Sub button1_Click(sender As Object, e As EventArgs)
' Add 40 to the Value property if it will not exceed the Maximum value.
If vScrollBar1.Value + 40 < vScrollBar1.Maximum Then
vScrollBar1.Value = vScrollBar1.Value + 40
End If
End Sub
Produto | Versões |
---|---|
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
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