Question Convert controls

[kraitz]

I upgraded my application from vb6 to vb.net there're some errors that i need to solve. Please help. it should be easy for you guys as i'm new to vb.net

  Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        test(ComboBox1)

    End Sub


    Private Sub test(ByRef test1 As System.Windows.Forms.Control)

 //how do i convert test1 to combobox?
 // as the program doesn't know its a combobox as it doesn't have functions of combobox

    End Sub

not sure if you got what i mean i tried google it it doesn't give me the right results.

thanks.

 

[jmcilhinney]

You simply change 'Control' to 'ComboBox'.

Also, change that ByRef to ByVal. ByVal is the default in VB.NET and you should always use it unless you specifically want to assign a new value to the parameter and have that change affect the original variable.

 

[kraitz]

arh.. thank you!

 

[send2te]

{Be hAppy}

Dim Test2 as combobox=ctype(test1,ComboBox)

OR

Change:
Private Sub test(ByRef test1 As System.Windows.Forms.Control)
as
Private Sub test(ByRef test1 As ComboBox)