Knob建设者

要创造瘤或米的一个新的请求控制是必要使用 New 建设者，当时, 使用的资源来发布以方法 Dispose.

例子:

在他们来的以下例子使用了二个按钮，其中第一个 btnCreateKnob 到活化作用 Click 事件创造 Knob 控制，设定了某一物产，并且它根据按钮 btnDisposeKnob 形象化它在形式，而，到活化作用 Click 事件从控制释放参与的资源.

[Visual Basic]

Dim knb As LabDevTools.Knob

Private Sub btnCreateKnob_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreateKnob.Click

knb = New LabDevTools.Knob

knb.Name = "knbMyKnob"

knb.Appearance.Radius = 37

knb.Top = btnCreateKnob.Top - 165

knb.Left = btnCreateKnob.Left + 10

knb.ForeColor = Color.Red

knb.Appearance.ArcStart = 270

knb.Appearance.ArcEnd = 270

knb.Appearance.CursorProperties.CursorColor = Color.Red

knb.Appearance.Divisions.MayorColor = Color.Violet

knb.Appearance.BorderProperties.BorderWidth = 11

knb.Appearance.BackgroundScale.BackgroundScale = True

knb.Appearance.BackgroundScale.BackgroundScaleWidth = 15

knb.Appearance.Divisions.NumberOfDivisions = 20

knb.Appearance.Style = LabDevTools.Appearance.StyleKnob.StyleDial

knb.Values.Max = 1000

knb.Values.Min_Visible = False

knb.Values.Min = -1000

Controls.Add(knb)

btnDisposeKnob.Enabled = True

End Sub

Private Sub btnDisposeKnob_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisposeKnob.Click

If Not IsNothing(knb) Then knb.Dispose()

btnDisposeKnob.Enabled = False

End Sub

[C#]

LabDevTools.Knob knb;

private void btnCreateKnob_Click(object sender, System.EventArgs e)

{

knb = new LabDevTools.Knob();

knb.Name = "knbMyKnob";

knb.Appearance.Radius = 37;

knb.Top = btnCreateKnob.Top - 165;

knb.Left = btnCreateKnob.Left + 10;

knb.ForeColor = Color.Red;

knb.Appearance.ArcStart=270;

knb.Appearance.ArcEnd=270;

knb.Appearance.CursorProperties.CursorColor = Color.Red;

knb.Appearance.Divisions.MayorColor = Color.Violet;

knb.Appearance.BorderProperties.BorderWidth = 11;

knb.Appearance.BackgroundScale.BackgroundScale = true;

knb.Appearance.BackgroundScale.BackgroundScaleWidth = 15;

knb.Appearance.Divisions.NumberOfDivisions = 20;

knb.Appearance.Style = LabDevTools.Appearance.StyleKnob.StyleDial;

knb.Values.Max = 1000;

knb.Values.Min = -1000;

knb.Values.Min_Visible=false;

Controls.Add(knb);

btnDisposeKnob.Enabled = true;

}

private void btnDisposeKnob_Click(object sender, System.EventArgs e)

{

if(knb!=null){knb.Dispose();}

btnDisposeKnob.Enabled = false;

}