Question

我尝试将默认值分配给当前正在登录的用户，以便他们查看自己的个人资料。

这是数据源：

<asp:SqlDataSource ID="SqlDataProfile" runat="server" ConnectionString="<%$ ConnectionStrings:RegistrationConnectionString %>" SelectCommand="SELECT username, email, studIC, password, studGuardian, studPhone, studAddress, studClass, studName FROM RegStudents WHERE (username LIKE @username + '%')" UpdateCommand="UPDATE RegStudents SET username = @username, password = @password, studName = @studName, studClass = @studClass, studAddress = @studAddress, studPhone = @studPhone, studGuardian = @studGuardian, studIC = @studIC WHERE (username LIKE @username + '%')">
    <SelectParameters>
        <asp:Parameter Name="username" Type="String" DefaultValue="@username" />
    </SelectParameters>
    <UpdateParameters>
        <asp:Parameter Name="username" />
        <asp:Parameter Name="password" />
        <asp:Parameter Name="studName" />
        <asp:Parameter Name="studClass" />
        <asp:Parameter Name="studAddress" />
        <asp:Parameter Name="studPhone" />
        <asp:Parameter Name="studGuardian" />
        <asp:Parameter Name="studIC" />
    </UpdateParameters>
</asp:SqlDataSource>

这是我背后的代码：

  public partial class ProfilePage : System.Web.UI.Page {

     protected void Page_Load(object sender, EventArgs e) { 
          SqlDataProfile.SelectParameters["username"].DefaultValue =User.Identity.Name; 
                }

当我将默认值设置为现有用户名时，它完全有效，但不能使用上面的代码。

<asp:Parameter Name="username" Type="String" DefaultValue="amanda123" />

在ASP.NET中为SelectParameters

0 个答案: