如何使用文本框更改模式弹出窗口 [英] How to use modal popup with Textbox Changed

问题描述

我想根据文本框值使用模态弹出窗口。即当我在文本框中编写类似test的字符串时，模态弹出窗口显示。我尝试使用文本框更改事件，但它没有。



这里是我的代码：



aspx文件：

Hi,


I want to using modal popup according to textbox value. i.e when i write a string like "test" in textbox, modal popup show. I try to this with textbox change event, but it didn't.

here is my code:

aspx file:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <asp:Button ID="Btnshow" runat="server" Text="Show" OnClick="Btnshow_Click" />
        <asp:Button ID="BtnTarget" runat="server" Text="Target" Style="display: none" />
        <asp:TextBox ID="TextBox1" runat="server">
        </asp:TextBox>
        <input type="button" value="Get" onclick="abc()" />
        <asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="BtnTarget"

            PopupControlID="Panel1">
        </asp:ModalPopupExtender>
        <asp:Panel ID="Panel1" runat="server" BackColor="Black" Width="300px" Height="300px">
            <asp:UpdatePanel ID="UpdatePanel2" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional">
                <ContentTemplate>
                    <asp:Button ID="BtnHide" runat="server" Text="Hide Button" OnClick="BtnHide_Click" />
                </ContentTemplate>
                <Triggers>
                    <asp:AsyncPostBackTrigger ControlID="BtnHide" EventName="Click" />
                </Triggers>
            </asp:UpdatePanel>
        </asp:Panel>
    </ContentTemplate>
    <Triggers>
        <asp:AsyncPostBackTrigger ControlID="Btnshow" EventName="Click" />
    </Triggers>
</asp:UpdatePanel>

cs文件：

cs file:

protected void TxtProject_TextChanged(object sender, EventArgs e)
        {
            KurumAdi = TxtProject.Text;
            if (TxtProject.Text == "test")
            {
                Btnshow_Click(null, null);
            }
        }

        protected void Btnshow_Click(object sender, EventArgs e)
        {
            ModalPopupExtender1.Show();
        }
        protected void BtnHide_Click(object sender, EventArgs e)
        {
            ModalPopupExtender1.Hide();
        }

推荐答案

将AutoPostBack =true放在文本框中

Hi,
Put AutoPostBack="true" in your textbox

<asp:TextBox ID="TextBox1" runat="server" AutoPostBack="true">

另外在AsyncPostBackTrigger中添加文本框ID，

Also add textbox id in AsyncPostBackTrigger ,

<Triggers>
        <asp:AsyncPostBackTrigger ControlID="TextBox1"/>
    </Triggers>

这样可行。

this would work.

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