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動態控件在我點擊它後就消失了,爲什麼會發生這種情況,以及如何解決這個問題。動態創建的控件在點擊時消失點擊
protected void Page_Load(object sender, EventArgs e)
{
/*DropDownList1_SelectedIndexChanged(sender, e);
Label1.Text += "<br/>huh?";
Label1.Text = MapPath("dawd");*/
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
//PlaceHolder1.Controls.Clear();
for (int i = 0; i < DropDownList1.SelectedIndex + 1; i++)
{
CheckBox cb = new CheckBox();
cb.AutoPostBack = true;
cb.CheckedChanged += new EventHandler(cb_CheckedChanged);
PlaceHolder1.Controls.Add(cb);
PlaceHolder1.Controls.Add(new LiteralControl("<br/>"));
}
}
void cb_CheckedChanged(object sender, EventArgs e)
{
//DropDownList1_SelectedIndexChanged(sender, e);
Label1.Text += "<br/>adsd";
//throw new NotImplementedException();
}
歡呼聲,JAF
是的,但我希望它只在從下拉列表中選擇時創建,如何 – user434753 2010-09-03 08:16:19
@ jbs135 - 就像你做的那樣。但是,如果稍後的按鈕/鏈接點擊意味着它們消失(因爲它們不會被重新創建),請不要感到驚訝。 – Oded 2010-09-03 08:30:18