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所以我有这个TextBox的UpdatePanel。每当我点击它,它就会聚焦,然后在不到一秒钟的时间内失去焦点。因此,似乎无法在TextBox中写入任何内容。我该如何解决这个问题?TextBox神秘地失去焦点
<asp:Content ID="Content3" ContentPlaceHolderID="MainContent" runat="server">
<asp:UpdatePanel runat="server" ChildrenAsTriggers="true">
<ContentTemplate>
<asp:Timer runat="server" ID="updateTimer" Interval="1000" OnTick="updateTimer_Tick"></asp:Timer>
<div>
<asp:Panel runat="server" BorderColor="Black" BorderStyle="Double" BorderWidth="4" ScrollBars="Vertical">
<asp:Literal runat="server" ID="chatLabel"></asp:Literal>
</asp:Panel>
<asp:TextBox runat="server" ID="chatTextBox" ClientIDMode="Static" BorderStyle="Double" BorderColor="Black" BorderWidth="4" AutoPostBack="true" OnKeyPress="return EnterEvent(event)"></asp:TextBox>
<asp:Button runat="server" ID="chatSubmit" OnClick="chatSubmit_Click" Text="Send"/>
</div>
</ContentTemplate>
</asp:UpdatePanel>
<script>
function EnterEvent(e)
{
if (e.keyCode == 13)
{
__doPostBack('<%= chatSubmit.UniqueID %>', "");
}
}
</script>
</asp:Content>