having trouble clearing textboxes - textbox

Question

i want to clear all textboxes. wrote the public function as:
public void clean(Control parent)
{
try
{
foreach (Control c in parent.Controls)
{
TextBox tb = c as TextBox; //if the control is a textbox
if (tb != null)//Will be null if c is not a TextBox
{
tb.Text = String.Empty;//display nothing
}
}
}
catch (Exception ex)
{
Console.WriteLine("{0} Exception caught.", ex);
}
}
in the class of the page i want it to be called i declared:
PublicFunctions pubvar = new PublicFunctions();
and i call it as
pubvar.clean(Page);
but its not working... not even throwing an error... and my textboxes arent clearing... help?

Answer 1

You should use recursive loop to check all the controls.
try this code
using System;
using System.Collections.Generic;
using System.Web.UI;
using System.Web.UI.WebControls;
public class PublicFunctions
{
public void Clean(Control parent)
{
var controls = GetAllControls(parent);
foreach (Control c in controls)
{
TextBox tb = c as TextBox;
if (tb != null)
{
tb.Text = String.Empty;
}
}
}
public IEnumerable<Control> GetAllControls(Control parent)
{
foreach (Control control in parent.Controls)
{
yield return control;
foreach (Control innerControl in control.Controls)
{
yield return innerControl;
}
}
}
}