</asp:DropDownList>问题

</asp:DropDownList>

代码如下

<form id="form1" runat="server">
<div>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem>boy</asp:ListItem>
<asp:ListItem>girl</asp:ListItem>
</asp:DropDownList>
</div>
</form>

后台

protected void MyDropDownListSex_SelectedIndexChanged(object sender, EventArgs e)
{
Response.Write(boy);

Response.Write(girl);

}

我要选择girl就打印girl 选择BOY就打印BOY

if (mysousuo.SelectedIndex == 0)

{

Response.Write(boy);

}

if (mysousuo.SelectedIndex == 1)

{

Response.Write(girl);

}

if (this.DropDownList1.SelectedIndex == 1) { Response.Write(boy); }else

{

Response.Write(girl);

}

//在他的事件中默认选择是1 是1的时候就说明选择到了boy了 girl是2 这个是最简单的写法