Question

如何使用脚本根据aspx页面中的查询字符串隐藏用户控件。我试过这个，但它没有用。

<%# (Request.QueryString["catl1"] == "ask_the_expert") ? ucTalkToExpert1.Visible = false : ucTalkToExpert1.Visible = true%>
<uc3:ucTalkToExpert ID="ucTalkToExpert1" runat="server" />

即使queryString是ask_the_expert，它仍然没有隐藏ucTalkToExpert1用户控件。

我无法触及后端代码。

更新

我没有源代码。

Answer 1

在后面的代码中执行它会更清晰。

if(Request.QueryString["catl1"] == "ask_the_expert")
     ucTalkToExpert1.Visible = false;
else
     ucTalkToExpert1.Visible = true;

或者，如果您没有代码

<script language="c#" runat="server">
public void Page_Load(object sender, EventArgs e)
{
   if(Request.QueryString["catl1"] == "ask_the_expert")
     ucTalkToExpert1.Visible = false;
   else
     ucTalkToExpert1.Visible = true;

}
</script>

Answer 2

您可以通过在其周围添加if语句来破解aspx页面。

<% if (Request.QueryString["catl1"] != "ask_the_expert") { %>
<uc3:ucTalkToExpert ID="ucTalkToExpert1" runat="server" />
<% } %>

Answer 3

ASPX：

<uc1:ucTalkToExpert1 ID="ucTalkToExpert11" runat="server" Visible=<%# Request.QueryString["catl1"] == "ask_the_expert" ? false : true %>  />

代码背后：

protected void Page_Load(object sender, EventArgs e)
{
    DataBind();
}

Answer 4

更改

<uc3:ucTalkToExpert ID="ucTalkToExpert1" runat="server" />

到

<uc3:ucTalkToExpert Visible="false" ID="ucTalkToExpert1" runat="server" />

如何根据aspx页面中的查询字符串隐藏用户控件

4 个答案: