VB.Net .Clear() or txtbox.Text = "" textbox clear methods

Add this code in the Module :

Public Sub ClearTextBoxes(frm As Form) 

    For Each Control In frm.Controls
        If TypeOf Control Is TextBox Then
            Control.Text = ""     'Clear all text
        End If       
    Next Control

End Sub

Add this code in the Form window to Call the Sub routine:

Private Sub Command1_Click()
    Call ClearTextBoxes(Me)
End Sub

The two methods are 100% equivalent.

I’m not sure why Microsoft felt the need to include this extra Clear method but since it’s there, I recommend using it, as it clearly expresses its purpose.

The Clear method is defined as

    public void Clear() { 
        Text = null;
    } 

The Text property's setter starts with

        set { 
            if (value == null) { 
                value = "";
            } 

I assume this answers your question.

Public Sub EmptyTxt(ByVal Frm As Form)
    Dim Ctl As Control
    For Each Ctl In Frm.Controls
        If TypeOf Ctl Is TextBox Then Ctl.Text = ""
        If TypeOf Ctl Is GroupBox Then
            Dim Ctl1 As Control
            For Each Ctl1 In Ctl.Controls
                If TypeOf Ctl1 Is TextBox Then
                    Ctl1.Text = ""
                End If
            Next
        End If
    Next
End Sub

add this code in form and call this function

EmptyTxt(Me)