请编程遍历页面上所有TextBox控件并给它赋值为string.Empty？(webform&winform)

webform:

 

 

 foreach (Control control in this.Form.Controls)



{



if (control is System.Web.UI.WebControls.TextBox)



{



TextBox txt = (TextBox)control;



txt.Text = "fdsafds";// string.Empty;



}



}

 

 

winform:

foreach (System.Windows.Forms.Control control in this.Controls)

{

if (control is System.Windows.Forms.TextBox)

{

System.Windows.Forms.TextBox tb = (System.Windows.Forms.TextBox)control ; 

tb.Text = String.Empty ;

}

}