How to update a textbox on Form from a click on a button on a User Control
I need update the text of a textb开发者_StackOverflowox when I do click on a button on a user control.
How I can do that?
Declare an event in the user control and have the button's Click event raise it:
Public Class UserControl1
Public Event MyButtonClick As EventHandler(Of MyButtonClickEventArgs)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RaiseEvent MyButtonClick(Me, New MyButtonClickEventArgs("nobugz"))
End Sub
Public Class MyButtonClickEventArgs
Inherits EventArgs
Private mText As String
Public Sub New(ByVal text As String)
mText = text
End Sub
Public ReadOnly Property Text() As String
Get
Return mText
End Get
End Property
End Class
End Class
Now the form that hosts the user control can subscribe to the event and update the text box as needed:
Private Sub UserControl11_MyButtonClick(ByVal sender As System.Object, ByVal e As WindowsApplication1.UserControl1.MyButtonClickEventArgs) Handles UserControl11.MyButtonClick
TextBox1.Text = e.Text
End Sub
And how I send a string from the user control to the form?
I need send data from user control to thr form and read it in the textbox. For example:
Private Sub UserControl11_MyButtonClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles UserControl11.MyButtonClick
TextBox1.Text = e.mystring
End Sub
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