c# - 如何制作独立的更新面板？

Question

据我了解 UpdatePanel，它们应该单独失效，即触发一个 UpdatePanel 不应触及另一个面板的控件。它确实适用于任何 UpdatePanel 之外的控件，但是任何 UpdatePanel 内部的控件都可以通过触发任何 UpdatePanel 来触及:

    <form id="form1" runat="server">
<asp:ScriptManager ID="SM1" runat="server"/>
<div>
    <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
    <asp:UpdatePanel ID="update1" runat="server">
        <ContentTemplate>
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
            <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
        </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="update2" runat="server">
        <ContentTemplate>
            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
            <asp:Button ID="Button2" runat="server" Text="Button" onclick="Button2_Click" />
        </ContentTemplate>
    </asp:UpdatePanel>
</div>
</form>

代码隐藏:

        protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        TextBox1.Text = "Clicked 1";
        TextBox2.Text = "Shouldn't appear";
        TextBox3.Text = "Neither should this";
    }

    protected void Button2_Click(object sender, EventArgs e)
    {
        TextBox2.Text = "Clicked 2";
        TextBox1.Text = "Shouldn't appear";
        TextBox3.Text = "Neither should this";
    }

“这也不应该”不会出现，但是会出现“不应该出现”:(。任何人都可以帮助我理解导致这种行为的原因吗？

Answer 1

现在我明白了，我忘了把 UpdateMode="Conditional"属性放到 UpdatePanels 上。

工作代码:

    <form id="form1" runat="server">
<asp:ScriptManager ID="SM1" runat="server"/>
<div>
    <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
    <asp:UpdatePanel ID="update1" runat="server" UpdateMode="Conditional">
        <ContentTemplate>
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
            <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
        </ContentTemplate>
    </asp:UpdatePanel>
    <asp:UpdatePanel ID="update2" runat="server" UpdateMode="Conditional">
        <ContentTemplate>
            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
            <asp:Button ID="Button2" runat="server" Text="Button" onclick="Button2_Click" />
        </ContentTemplate>
    </asp:UpdatePanel>
</div>
</form>