Meter Constructor

To create one new request of the Meter control is necessary to use New constructor while, the used resources come rileased with the method Dispose.

Example:

In the following example they come used two buttons of which the first one, btnCreateMeter, to the activation of the Click event creates a Meter control, set up some property and it visualizes it on the form, while according to button, btnDisposeMeter, to the activation of the Click event free the resources engaged from the control.

[Visual Basic]

Dim mtr As LabDevTools.Meter

Private Sub btnCreateMeter_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreateMeter.Click

mtr = New LabDevTools.Meter

mtr.Name = "mtrMyMeter"

mtr.Appearance.Radius = 37

mtr.Top = btnCreateMeter.Top - 165

mtr.Left = btnCreateMeter.Left + 10

mtr.ForeColor = Color.Red

mtr.Appearance.ArcStart = 270

mtr.Appearance.ArcEnd = 270

mtr.Appearance.CursorProperties.CursorColor = Color.Red

mtr.Appearance.Divisions.MayorColor = Color.Violet

mtr.Appearance.BorderProperties.BorderWidth = 11

mtr.Appearance.BackgroundScale.BackgroundScale = True

mtr.Appearance.BackgroundScale.BackgroundScaleWidth = 15

mtr.Appearance.Divisions.NumberOfDivisions = 20

mtr.Appearance.Style = LabDevTools.Appearance.StyleMeter.StyleDial

mtr.Values.Max = 1000

mtr.Values.Min_Visible = False

mtr.Values.Min = -1000

Controls.Add(mtr)

btnDisposeMeter.Enabled = True

End Sub

Private Sub btnDisposeMeter_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisposeMeter.Click

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

btnDisposeMeter.Enabled = False

End Sub

[C#]

LabDevTools.Meter mtr;

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

{

mtr = new LabDevTools.Meter();

mtr.Name = "mtrMyMeter";

mtr.Appearance.Radius = 37;

mtr.Top = btnCreateMeter.Top - 165;

mtr.Left = btnCreateMeter.Left + 10;

mtr.ForeColor = Color.Red;

mtr.Appearance.ArcStart=270;

mtr.Appearance.ArcEnd=270;

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

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

mtr.Appearance.BorderProperties.BorderWidth = 11;

mtr.Appearance.BackgroundScale.BackgroundScale = true;

mtr.Appearance.BackgroundScale.BackgroundScaleWidth = 15;

mtr.Appearance.Divisions.NumberOfDivisions = 20;

mtr.Appearance.Style = LabDevTools.Appearance.StyleMeter.StyleDial;

mtr.Values.Max = 1000;

mtr.Values.Min = -1000;

mtr.Values.Min_Visible=false;

Controls.Add(mtr);

btnDisposeMeter.Enabled = true;

}

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

{

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

btnDisposeMeter.Enabled = false;

}