我在回击期间改变一个灰色体的价值。
<asp:HiddenField runat="server" ID="hiddenField" Value="old value" />
private void Page_Load(object sender, EventArgs e)
{
if (IsCallBack)
{
hiddenField.Value = "new value";
}
}
但是,在回击之后,隐蔽领域的价值是“旧价值”。 在进行清点时,我可以看到,隐蔽领域的价值是“新的价值”。 我要知道,为什么保留原来的价值。 感谢。
I think you are trying to change the value of the Hidden Field in Async/partial post back but your Hidden field is not in the update panel.
<><>Edit>: 你需要把你的隐蔽领域放在更新小组。
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