Question

据我了解UpdatePanels，它们应该单独失效，即触发一个UpdatePanel不应该触及另一个面板的控件。它确实适用于任何UpdatePanel之外的控件，但触发任何UpdatePanel触及任何UpdatePanel内的控件：

    <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>

代码背后：

        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";
    }

“也不应该出现”，但是“不应出现”出现:(。有人能帮助我理解导致这种行为的原因吗？

Answer 1

现在我看到了，我忘了将UpdateMode =“Conditional”属性放到UpdatePanels。

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>

如何制作独立的更新面板？

1 个答案: