Button class in Windows Forms represents a Button control. Whenever button clicks, the Click event handler is invoked. You can place code in the Click event handler to perform any action you choose.
Drag and drop Button control from toolbox on windows form.
Drag and drop a TextBox change the name of Button
Code:
Public Class Form3
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'TextBox1 value will show in MessageBox
MessageBox.Show(TextBox1.Text)
End Sub
End Class
Run the Project
When you insert any value or text and click submit button then inserted text will show in the Message box.
Designating a Button as the Cancel Button.
On Windows Form you can designate a Button control to be the cancel button. A cancel button is clicked whenever the user presses the ESC key.
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'set button1 as cancell button
Me.CancelButton = Button1
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.Close()'close window Form
End Sub
Output:
When you press Esc key on the keyboard then Window Form will closed.
Properties of Button:
BackColor
Through BackColor properties we can change BackColor of Button.
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'change backcolor of button
Button1.BackColor = Color.CadetBlue
End Sub
At run time backcolor of button will be changed.
ForeColor:
Through BackColor properties we can change ForeColor of Button.
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' change ForeColor of button text
Button1.ForeColor = Color.Red
End Sub
At run time Forecolor of button will be changed.
We can change both BackColor and ForeColor simultaneously.
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'' change BackColor of button tex
Button1.BackColor = Color.CadetBlue
' change ForeColor of button text
Button1.ForeColor = Color.Red
End Sub
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