Get the name textview in loop repeat

You do not need to use for for this, you can simply use a Linq query to simplify this.

See an example:

var textos = this.Controls.OfType<TextBox>().
                                 Where(control => control.Name.Contains("Publicacao")).
                                 Select(txt => txt.Text).ToArray();

This query takes from the Controls property of the form, all controls that are TextBox (or derived from it) whose name contains the Publication literal > and then select only the text of the same ones, throwing them in the string array ( string[] ) textos .

You can use the property Controls of the form and run a linq to get the controls with the desired name.

List<TextBox> textBoxes = this.Controls.OfType<TextBox>()
        .Where(ctrl => ctrl.Name.Contains("Publicacao")).ToList();

You can also use a for by traversing the controls that are inside the panel. In this function you pass your dashboard, and you will scroll through all the TextBox, and those that have the name "Publication" will be saved in a list of names, and returned.

Public Function NomesArray(ByRef painel As Control) As List(Of String)
    Dim ArrayNomes As New List(Of String)

    For Each Control In painel.Controls
        If TypeOf Control Is TextBox Then
            If DirectCast(Control, txtBusca).Name = "Publicacao" Then
                ArrayNomes.Add(DirectCast(Control, txtBusca).Name)
            End If
        End If
    Next

    Return ArrayNomes
End Function