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CheckBox Control in VB.Net


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CheckBox Control in VB.Net

The Checkbox control is used to display a check box. The Checkbox control gives us an option to select, say, yes/no or true/false. A checkbox is clicked to select and clicked again to deselect some option. When a checkbox is selected, a check (a tick mark) appears indicating a selection.

How use the CheckBox Control

Drag and drop three checkbox and a Button from toolbox on window form.

CheckBox Control in VB.Net

Drag and drop two more CheckBox.

CheckBox Control in VB.Net

Code:

Public Class Form4

 

 Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged

        'display checkbox value when checkbox1 is checked

        Label3.Text = "Selected Language is   " + CheckBox1.Text

    End Sub

 

  Private Sub CheckBox2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox2.CheckedChanged

        'display checkbox value when checkbox2 is checked

        Label3.Text = "Selected Language is   " + CheckBox2.Text

    End Sub

 

  Private Sub CheckBox3_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox3.CheckedChanged

        'display checkbox value when checkbox3 is checked

        Label3.Text = "Selected Language is   " + CheckBox3.Text

    End Sub

End Class

 

Run the project

 

CheckBox Control in VB.Net

When you select any language then CheckedChanged event of CheckBox will fire and selected language will show in Label.

CheckBox Control in VB.Net

CheckBox Control Properties

CheckState:     Default value is Unchecked. Set it to True if you want a check to appear when form executed.

For Example:

Private Sub Form4_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        'check will appear at run time

        CheckBox1.CheckState = CheckState.Checked

    End Sub

 

Output:

CheckBox Control in VB.Net

Appearance: Default value is Normal. Set the value to Button if you want the CheckBox to be displayed as a Button.

For Example:

'set checkbox appearance as button

  Private Sub Form4_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        CheckBox1.Appearance = Appearance.Button

        CheckBox2.Appearance = Appearance.Button

        CheckBox3.Appearance = Appearance.Button

 End Sub

 

Output:

CheckBox Control in VB.Net

Now checkbox will show as button. But checkbox Behaviour will not change.

BackColor:

You can change the BackColor of CheckBox for example

Private Sub Form4_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        ' change the backcolor of checkbox

        CheckBox1.BackColor = Color.BurlyWood

        CheckBox2.BackColor = Color.BurlyWood

        CheckBox3.BackColor = Color.BurlyWood

    End Sub

At run time checkbox backcolor will be changed.

Output:

CheckBox Control in VB.Net

 


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