重载解析失败，因为没有可访问的“ DataBind”最特定于这些参数

Question

I am getting this error 'overload resolution failed because no accessible 'DataBind' is most specific for these arguments' below is the code I am using.

    Private Overloads Sub DataBind(ByVal iPageIndex As Integer) 
     //do some thing 
    End Sub

    Protected Overridable Sub DataBind(raiseondatabinding as Boolean)
        //Do some thibg
    End Sub

    Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles btnSearch.Click
            DataBind(Nothing) //this is where I am getting error
    End Sub

Any help would be appropriated.

Thanks,

Pradeep

Answer 1

It doesn't know which version of DataBind you're trying to use, because Nothing is convertible to both Boolean and Integer . You could either use a variable for this:

Private Sub btnSearch_Click(ByVal sender As Object, _
                            ByVal e As ImageClickEventArgs) _
                            Handles btnSearch.Click
    Dim x As Integer = Nothing
    DataBind(x)
End Sub

or just specify 0 or False as the argument:

Private Sub btnSearch_Click(ByVal sender As Object, _
                            ByVal e As ImageClickEventArgs) _
                            Handles btnSearch.Click
    DataBind(False)
End Sub

Adjust depending on which version you actually wanted to call. Like the compiler, I can't tell what you intended :)