Convert Type.

[Anibal]

How do i convert an object variable to a Button one.
I have the following code in VB wich works fine:

Sub Button1Click(sender As Object, e As System.EventArgs)
Dim btn as Button = Convert.ChangeType(sender,GetType(Button))
MessageBox.Show(btn.Text)
End Sub

How can i reproduce the same behaivour in C#?
Thanks.

 

[Andrew Robinson]

Button button = (Button)sender;
MessageBox.Show(button.Text);

Technically you are not "converting" as the object is already referencing a
button type. Rather you are "casting" it.

 

[jeremiah johnson]

How do i convert an object variable to a Button one.
I have the following code in VB wich works fine:

Sub Button1Click(sender As Object, e As System.EventArgs)
Dim btn as Button = Convert.ChangeType(sender,GetType(Button))
MessageBox.Show(btn.Text)
End Sub

How can i reproduce the same behaivour in C#?
Thanks.

I don't know VB well but I think casting is what you want.

public void Button1Click(Object sender, EventArgs e) {
Button btn = (Button) sender; // casting from Object to Button.
MessageBox.Show(btn.Text);
}

I'm hopped up on cough medicine, so I may be inaccurate here, but I
think this is what you're trying to do.

jeremiah

 

[Anibal]

Thank you very much.

Button button = (Button)sender;
MessageBox.Show(button.Text);

Technically you are not "converting" as the object is already referencing
a button type. Rather you are "casting" it.

 

[John B]

How do i convert an object variable to a Button one.
I have the following code in VB wich works fine:

Sub Button1Click(sender As Object, e As System.EventArgs)
Dim btn as Button = Convert.ChangeType(sender,GetType(Button))
MessageBox.Show(btn.Text)
End Sub

How can i reproduce the same behaivour in C#?
Thanks.

You can also use the 'as' operator.

Button b = sender as Button;

However, this will not throw an invalidcastexception, rather it will
return null if the cast fails.

JB