Asp.Net :How to clear all ASP.Net control content in one method C#

You can call this function to clear content of  controls such as TextBox, CheckBox and  DropDownList. You can further add on other ASP.Net controls to clear their content.

public void ClearFields(System.Web.UI.Page page, string defaultDropDownValue)
        {
            ArrayList all = GetControls(page.Controls);
            for (int i = 0; i <= all.Count - 1; i++)
            {
                Control ctl = (Control)all[i];
                if (ctl.GetType().ToString().Equals("System.Web.UI.WebControls.TextBox"))
                    ((TextBox)ctl).Text = "";
                //to Uncheck All Check Box
                if (ctl.GetType().ToString().Equals("System.Web.UI.WebControls.CheckBox"))
                    ((CheckBox)ctl).Checked = false;
                //to set dropdown default value
                try
                {
                    if (ctl.GetType().ToString().Equals("System.Web.UI.WebControls.DropDownList"))
                        ((DropDownList)ctl).SelectedValue = defaultDropDownValue;
                }
                catch { }     
            }            
        }

Many Asp.Net new programmer do it by clear  control content by setting their property one by one . For Ex.

TextBox1.Text="";

checkBox1.checked=False;