Checked Property (FpCheckBox) | Spread Windows Forms 13.0 Product Documentation

Checked Property (FpCheckBox)

In This Topic

Gets or sets whether the check box is checked.

Syntax

Visual Basic
C#

'Declaration
 
Public Overridable Property Checked As Boolean

'Usage
 
Dim instance As FpCheckBox
Dim value As Boolean
 
instance.Checked = value
 
value = instance.Checked

public virtual bool Checked {get; set;}

Property Value

true if check box is checked; false otherwise

Remarks

Setting this property to true is similar to selecting the check box, or setting the CheckState property to Checked.

When the check box changes from checked to not checked, the CheckChanged event occurs.

This property is available at run time only.

Example

private void Form1_Load(object sender, System.EventArgs e)
{
     control.CheckState = CheckState.Unchecked;
     control.PictureAlignH=FarPoint.Win.HorizontalAlignment.Center;
     control.PictureAlignV = FarPoint.Win.VerticalAlignment.Center;
     control.BackgroundImage = new FarPoint.Win.Picture(Image.FromFile("d:\\mail16a.ico", true), FarPoint.Win.RenderStyle.Normal);
}
private void control_CheckChanged(object sender, System.EventArgs e)
    {
    if (control.CheckState == CheckState.Checked)
    { 
        control.BackgroundImage = new FarPoint.Win.Picture(Image.FromFile("d:\\mail16a.ico", true), FarPoint.Win.RenderStyle.Normal);
        control.PictureAlignH = FarPoint.Win.HorizontalAlignment.Center;
        control.PictureAlignV = FarPoint.Win.VerticalAlignment.Center;
        control.TextTrue = "Mail's been checked";
    }
   else if (control.CheckState == CheckState.Unchecked) 
   {
        control.BackgroundImage = new FarPoint.Win.Picture(Image.FromFile("d:\\mail16b.ico", true), FarPoint.Win.RenderStyle.Normal);
        control.PictureAlignH = FarPoint.Win.HorizontalAlignment.Center;
        control.PictureAlignV = FarPoint.Win.VerticalAlignment.Center;
        control.TextFalse = "Mail needs to be checked";
    }
    else
    {
        control.CheckState = CheckState.Indeterminate;
        control.TextIndeterminate = "No mail today";
    }
}

Visual Basic

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
     control.Checked = False
     control.BackgroundImage = New FarPoint.Win.Picture(Image.FromFile("d:\\mail16a.ico", True), FarPoint.Win.RenderStyle.Normal)
End Sub

Private Sub control_CheckChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles control.CheckChanged
     If control.CheckState = CheckState.Checked Then
          control.BackgroundImage = New FarPoint.Win.Picture(Image.FromFile("d:\\mail16a.ico", True), FarPoint.Win.RenderStyle.Normal)
          control.PictureAlignH = FarPoint.Win.HorizontalAlignment.Center
          control.PictureAlignV = FarPoint.Win.VerticalAlignment.Center
          control.TextTrue = "Mail's been checked"
     ElseIf control.CheckState = CheckState.Unchecked Then
          control.BackgroundImage = New FarPoint.Win.Picture(Image.FromFile("d:\\mail16b.ico", True), FarPoint.Win.RenderStyle.Normal)
          control.PictureAlignH = FarPoint.Win.HorizontalAlignment.Center
          control.PictureAlignV = FarPoint.Win.VerticalAlignment.Center
          control.TextFalse = "Mail needs to be checked"
     Else
          control.CheckState = CheckState.Indeterminate
          control.TextIndeterminate = "No mail today"
     End If
 End Sub

Reference

FpCheckBox Class
FpCheckBox Members
CheckState Property
CheckChanged Event

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