Clear Controls on screen

Here is a method that will clear all the controls on your screen (as long as it matches one of the controls in the method).  It recursively calls itself until all the controls are clear.

Here is an example of how you call it:
ClearControlsOnScreen(this.Page);

  public void ClearControlsOnScreen(Control parent)
        {
            try
            {
                foreach (Control _ChildControl in parent.Controls)
                {
                    if ((_ChildControl.Controls.Count > 0))
                    {
                        ClearControlsOnScreen(_ChildControl);
                    }
                    else
                    {

                        TextBox textbox = _ChildControl as TextBox;
                        if (textbox != null)
                        {
                            textbox.Text = string.Empty;
                        }

                        DropDownList dropdownlist = _ChildControl as DropDownList;
                        if (dropdownlist != null)
                        {
                            dropdownlist.ClearSelection();
                        }

                        CheckBox checkBox = _ChildControl as CheckBox;
                        if (checkBox != null)
                        {
                            checkBox.Checked = false;
                        }

                        CheckBoxList checkBoxList = _ChildControl as CheckBoxList;
                        if (checkBoxList != null)
                        {
                            checkBoxList.ClearSelection();
                        }

                        GridView gridView = _ChildControl as GridView;
                        if (gridView != null)
                        {
                            gridView.DataSource = null;
                            gridView.DataBind();
                        }

                    }
                }

            }
            catch (Exception ex)
            {
                throw ;
            }
        }

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