ASP.NET判斷控制項類型

DEMO1：

public void ChangeRepeaterStatus(string rpID)        {            for (int i = 0; i < this.divPanel.Controls.Count; i++)            {                    //if (this.divPanel.Controls[i].GetType().FullName == typeof(Repeater).FullName)                    if (this.divPanel.Controls[i] is Repeater)                    {                        Repeater rpControl = this.divPanel.Controls[i] as Repeater;                        if (rpControl.ID == rpID)                        {                            rpControl.Visible = true;                        }                        else                        {                            rpControl.DataSource = null;                            rpControl.DataBind();                            rpControl.Visible = false;                        }                    }            }        }

DEMO2：

 public static void ClearTextBox(Control c)         {            foreach(Control control in c.Parent.Controls)            {                 if (control is TextBox)                 {                     ((TextBox)control).Text = string.Empty;                 }            }        }