//1.遍歷頁(yè)面中所有的TextBox,并將值設(shè)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(diào)用方法
FindAllTextBoxByPageControl(Page.Controls);
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