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<div id="testLoadControl" runat="server"></div>
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
return;
testLoadControl.Controls.Add(Page.LoadControl("~/controls/TestUserControl1.ascx"));
}
<table>
<tr>
<td>请选择所在城市:</td>
<td>
<asp:DropDownList ID="ddlCity" runat="server">
<asp:ListItem Text="上海"></asp:ListItem>
<asp:ListItem Text="北京"></asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td></td>
<td>
<asp:Button ID="btnSubmit" runat="server" Text="下一步" Width="80"
onclick="btnSubmit_Click" />
</td>
</tr>
</table>
public void btnSubmit_Click(object sender, EventArgs e)
{
//页面加载用户控件之后 点击下一步 这段代码执行不到 是什么原因???
File.AppendAllText(@"d:\test.txt", DateTime.Now.ToString()+"\r\n");
Page p = Parent.Page;
HtmlGenericControl control = p.FindControl("testLoadControl") as HtmlGenericControl;
control.Controls.Add(Page.LoadControl("~/controls/TestUserControl2.ascx"));
}