在aspx页面上调用静态方法不起作用？

Question

I have a master page named MasterPage_MyMasterPage on whic i have created a static method as

public static string GetRoleName()
    {
        string sRoleName="admin";


        if (HttpContext.Current.Session["UserName"] != null)
        {
            sRoleName = HttpContext.Current.Session["UserName"].ToString();
        }
        return sRoleName;
    }

and on aspx page i called it as

<a >Brayan <asp:Label runat="server" Text='<%= MasterPage_MyMasterPage.GetRoleName() %>' ></asp:Label>

but it doesn't worked, it print as ...

Brayan <span><%= MasterPage_MyMasterPage.GetRoleName() ;></span>       

Session["UserName"] is bind when login successfull.Please help me.

Answer 1

嘿，请尝试对我有用

<a >Brayan <asp:Label runat="server" Text='' ><%= MasterPage_MyMasterPage.GetRoleName()%>     </asp:Label>

Answer 2

Inline expressions using the <%= ... %> syntax can be used to render to the page.

But they can't be used to set a server-control property, which is what you're attempting to do (Label.Text property).

Consider using data-binding syntax instead:

... Text = "<%# MasterPage_MyMasterPage.GetRoleName() %>"

Answer 3

Try this

<%= ((MasterPage_MyMasterPage)Page.Master).GetRoleName() %>

Update:

Make a protected method in your cs file something like this

protected string getRoleName()
{
    return ((MasterPage_MyMasterPage)Page.Master).GetRoleName();
}

and in aspx file

<%= getRoleName() %>

Answer 4

Could it be the same as this one?

How do I set an ASP.NET Label text from code behind on page load?