我有一个母版页和一个用户控件。
我在用户控件中有两个用于创建或删除会话的按钮,以及一个显示会话文本的标签,当单击按钮时没有任何反应,用户控件不会更新,我应该刷新页面,
你能请任何人帮我解决这个问题吗?
这是我的母版页标记:
<form runat="server">
<div>
<!--previous codes-->
<nav class="navigation">
<div class="wrapper">
<controller:menu runat="server" ID="menu" />
<controller:user runat="server" ID="user" />
</div>
</nav>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
<!--Next Codes-->
</div>
</form>
这是我的用户控件
<ul class="nav signup">
<li class="no-drop-down">
<asp:Label ID="_signupbutton" runat="server" CssClass="sr">Test</asp:Label>
<div class="signup-dropdown">
<asp:PlaceHolder ID="_defaultuser" runat="server" Visible="false">
<div class="notloggeduser">
<asp:LinkButton ID="LinkButton1" runat="server" CssClass="usercontroller"
OnClick="LinkButton1_Click" Text="????">
</asp:LinkButton>
</div>
</asp:PlaceHolder>
<asp:PlaceHolder ID="_signedup" runat="server" Visible="false">
<div class="defaultuser">
<ul>
<li>
<asp:LinkButton ID="_userlogout" runat="server" CssClass="usercontroller" OnClick="_userlogout_Click">
<i class="fa"></i>????
</asp:LinkButton>
</li>
</ul>
</div>
</asp:PlaceHolder>
</div>
</li>
</ul>
这是用户控件代码隐藏
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Session["signup"] == null)
{
_signupbutton.Text = "??? ??? / ????";
_defaultuser.Visible = true;
}
else
{
_signupbutton.Text = "<i class="fa"></i> " + Session["signup"].ToString();
_signedup.Visible = true;
}
}
}
protected void _userlogout_Click(object sender, EventArgs e)
{
Session.Remove("signup");
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
Session.Add("signup", "????? ??????????");
}
你的事件顺序在这里有点混乱。
Page_Load
将在单击事件的事件处理程序之前执行。您需要从事件处理程序执行按钮状态的设置,就像在页面加载中执行此操作一样,您的会话对象尚未更新。
您需要在此处执行一些操作(这未经过测试,但应显示逻辑):
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) // This will run when the page is loaded but not from a post back / button click etc (e.g. from your page refresh)
{
this.SetButtonState();
}
else
{
// use this for things you want to happen on postback only
}
}
private void SetButtonState()
{
if (Session["signup"] == null)
{
_signupbutton.Text = "??? ??? / ????";
_defaultuser.Visible = true;
}
else
{
_signupbutton.Text = "<i class="fa"></i> " + Session["signup"].ToString();
_signedup.Visible = true;
}
}
protected void _userlogout_Click(object sender, EventArgs e)
{
Session.Remove("signup");
// Update your button state
this.SetButtonState();
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
Session.Add("signup", "????? ??????????");
// Update your button state
this.SetButtonState();
}