# C1.Win.TouchToolKit.C1Zoom.MaxZoomFactor ## Content

MaxZoomFactor Property

MaxZoomFactor

Gets or sets the maximum zoom factor of the form.

Declaration

[TypeConverter(typeof(j))]
public float MaxZoomFactor { get; set; }

<TypeConverter(GetType(j))>
Public Property MaxZoomFactor As Single

Property Value

Type	Description
float	A float value that represents the maximum zoom factor of the form. The default is 4f.

Examples

The following code example shows how to set the maxmum value of zoom factor.

This code example is part of a larger example provided for the C1Zoom class.

public class GcZoomDemo : Form
{
	private TextBox _maxZoomFactorTextBox;
	private GcZoom _gcZoom1 = new GcZoom();

	public GcZoomDemo()
	{
		InitializeComponent();

		_gcZoom1.Target = this;

		_maxZoomFactorTextBox.TextChanged += maxZoomFactorTextBox_TextChanged;
	}

	void maxZoomFactorTextBox_TextChanged(object sender, EventArgs e)
	{
		string value = _maxZoomFactorTextBox.Text.Trim();

	 	try
	 	{
		 	float maxFactor = (float)Convert.ToDouble(value);
		 	_gcZoom1.MaxZoomFactor = maxFactor;
	 	}
	 	catch
	 	{
			_gcZoom1.MaxZoomFactor = 2f;
	 	}
	}

 	private void InitializeComponent()
 	{
		_maxZoomFactorTextBox = new TextBox();
		_maxZoomFactorTextBox.Location = new Point(160, 80);
		this.Controls.Add(_maxZoomFactorTextBox);
 	}
}

Public Class GcZoomDemo
	Inherits Form
	Private _maxZoomFactorTextBox As TextBox
	Private _gcZoom1 As New GcZoom()

	Public Sub New()
		InitializeComponent()

		_gcZoom1.Target = Me

		AddHandler _maxZoomFactorTextBox.TextChanged, AddressOf maxZoomFactorTextBox_TextChanged
	End Sub

	Private Sub maxZoomFactorTextBox_TextChanged(sender As Object, e As EventArgs)
 		Dim value As String = _maxZoomFactorTextBox.Text.Trim()

 		Try
	 		Dim maxFactor As Single = CSng(Convert.ToDouble(value))
	 		_gcZoom1.MaxZoomFactor = maxFactor
		Catch
	 		_gcZoom1.MaxZoomFactor = 2.0F
 		End Try
	End Sub

	Private Sub InitializeComponent()
 		_maxZoomFactorTextBox = New TextBox()
 		_maxZoomFactorTextBox.Location = New Point(160, 80)
 		Me.Controls.Add(_maxZoomFactorTextBox)
	End Sub
End Class

Exceptions

Type	Condition
ArgumentOutOfRangeException	The assigned value less than 1f or more than 4f.