//1.遍歷頁面中所有的TextBox,并將值設置成String.Empty

?for (int j = 0; j < this.Controls.Count; j++)
{
??????foreach (object o in Page.Controls[j].Controls)
??????{

??????????if (o is TextBox)
?????????{
?????????????TextBox txt = (System.Web.UI.WebControls.TextBox)o;
?????????????txt.Text = String.Empty;
???????? }
???? }
}

?

//2.遞歸遍歷

?private void FindAllTextBoxByPageControl(ControlCollection controlCollection)
{
????for (int i = 0; i < controlCollection.Count; i++)
????{
??????????? if (controlCollection[i].GetType() == typeof(TextBox))??? //System.Web.UI.WebControls.TextBox
??????????? {
??????????????? (controlCollection[i] as TextBox).Text = String.Empty;
??????????? }
??????????? if (controlCollection[i].HasControls())
??????????? {
??????????????? //遞歸 (重要) 否則將退出程序
??????????????? FindAllTextBoxByPageControl(controlCollection[i].Controls);
??????????? }
????}
?}

//調用方法

?FindAllTextBoxByPageControl(Page.Controls);

摘自：http://www.cnblogs.com/Capricornus

?

轉載于:https://www.cnblogs.com/cuiqingling/archive/2010/02/03/1662549.html

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