清除Tab Control vb.net中的文本框

Question

• I have a tab control that contains 3 tab pages.
• Each tab page contains a Group Box.
• Each Group box contains different controls.

What I want to happen is that when a user clicks on button, all Text-Boxes in all Tab Pages are cleared.

I used this code :

    For Each page As TabPage In TB_Emp.TabPages
        For Each ctl As Control In page.Controls
            If TypeOf ctl Is TextBox Then
                ctl.Text = ""
            End If
            If TypeOf ctl Is ComboBox Then
                ctl.Text = ""
            End If
            If ctl.HasChildren Then
                For Each thing As Control In ctl.Controls
                    If TypeOf thing Is TextBox Then
                        thing.Text = ""
                    End If
                Next
            End If
        Next
    Next

But it's only working on the first tab page, I want to apply this code on all Tab Control Pages

Answer 1

Try looping over the controls in the .TabPages collection instead:

Dim tp as TabPage

For Each tp in Tabs.TabPages

For Each ctrl In tp.Controls

'Check for textbox etc.

Next

Next

Hope it helps

also you can use this LINK

Try this

 foreach (Control c in tabPage1.Controls)
            {
                if (c.GetType() == typeof(TextBox))
                {
                    c.Text = string.Empty;
                }
            }