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<asp:DropDownList ID="ddlZui" runat="server" AutoPostBack="True"
DataSourceID="SqlDataSource1" DataTextField="z_name" DataValueField="z_url"
onselectedindexchanged="ddlZui_SelectedIndexChanged">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:QMconStr %>"
SelectCommand="SELECT [z_name], [z_url] FROM [zuijin]"></asp:SqlDataSource>
protected void ddlZui_SelectedIndexChanged(object sender, EventArgs e)
{
Response.Redirect(ddlZui.SelectedValue);
}
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem Text="1">
</asp:ListItem>
<asp:ListItem Text="2">
</asp:ListItem>
<asp:ListItem Text="3">
</asp:ListItem>
</asp:DropDownList>
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
Response.Redirect("UserOpt.aspx");
}
Response.Write("<script>window.open('" + ddlZui.SelectedValue + "')</script>");
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"
Width="171px">
</asp:DropDownList></div>
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
DropDownList1.Items.Add(new ListItem("百度", "http://www.baidu.com"));
DropDownList1.Items.Add(new ListItem("google", "http://www.google.cn/"));
}
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
if (DropDownList1.SelectedIndex > -1)
{
Response.Redirect(DropDownList1.SelectedValue);
}
}