DropDownList的有关问题:当小弟我选中一个下拉选项时,选中值出现在旁边的TEXT框中

2012-02-04

DropDownList的问题:当我选中一个下拉选项时,选中值出现在旁边的TEXT框中DropDownList的问题:当我选中一个

DropDownList的问题:当我选中一个下拉选项时,选中值出现在旁边的TEXT框中
DropDownList的问题:当我选中一个下拉选项时,选中值出现在旁边的TEXT框中

[解决办法]
要不要刷新页面？
[解决办法]

C# code

<%@ Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">    protected void dpFruit_SelectedIndexChanged(object sender, EventArgs e)    {        txtFruit.Text = dpFruit.SelectedItem.Text;    }</script><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server">    <title>Untitled Page</title></head><body>    <form id="form1" runat="server">        <div>            <asp:DropDownList ID="dpFruit" runat="server" AutoPostBack="true" OnSelectedIndexChanged="dpFruit_SelectedIndexChanged">                <asp:ListItem>苹果</asp:ListItem>                <asp:ListItem>桔子</asp:ListItem>            </asp:DropDownList>            <asp:TextBox ID="txtFruit" runat="server"></asp:TextBox>        </div>    </form></body></html>
[解决办法]
也可以有javascript  

onchange事件


[解决办法]
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C# code
<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    protected void dpFruit_SelectedIndexChanged(object sender, EventArgs e)
    {
        txtFruit.Text = dpFruit.SelectedItem.Text;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head r…

[解决办法]
HTML code<asp:DropDownList ID="DropDownList1" onchange="test();" runat="server">        <asp:ListItem Text="a" Value="0"></asp:ListItem>        <asp:ListItem Text="b" Value="1"></asp:ListItem>    </asp:DropDownList>    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>    <script language="javascript" type="text/javascript">        function test()        {            document.getElementById("TextBox1").value = document.getElementById("DropDownList1").value;        }    </script>

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DropDownList的有关问题:当小弟我选中一个下拉选项时,选中值出现在旁边的TEXT框中