Question

请编程遍历页面上所有TextBox控件并给它赋值为string.Empty（用C#语言）

Answer 1

前台的代码：
foreach (Control txtobj in this.Page.Controls)
{
if (txtobj.GetType().Name == "TextBox")
{
// ((TextBox)txtobj).Text = "";//这是第一种方法赋值，第二种在下面
TextBox tb = new TextBox();
tb = (TextBox)this.FindControl(txtobj.ID); nbsp;
tb.Text = string.Empty;
}

后台代码：
foreach(Control ctl in this.Controls)
{
if(ctl is TextBox){

(ctl as TextBox).Text = string.Empty;
}}
}

Answer 2

foreach(Control ctl in this.Controls){
if(ctl is TextBox){
(ctl as TextBox).Text = string.Empty;
}
}