c# - 在上一步中禁用控件

Question

在 nextbuttonclick 事件之后，如何在向导的上一步中禁用所有 checbkoxes 或所有单选按钮？

Answer 1

ASPX：

<asp:Wizard ID="Wizard1" runat="server" 
        onnextbuttonclick="Wizard1_NextButtonClick">
        <WizardSteps>
            <asp:WizardStep ID="Step1" runat="server" Title="Step 1">
                <asp:RadioButton ID="RadioButton1" Text="Option 1" runat="server" />
                <asp:RadioButton ID="RadioButton2" Text="Option 2" runat="server" />
                <asp:RadioButton ID="RadioButton3" Text="Option 3" runat="server" />
            </asp:WizardStep>
            <asp:WizardStep ID="Step2" runat="server" Title="Step 2">
            </asp:WizardStep>
        </WizardSteps>
    </asp:Wizard>

后面的代码：

protected void Wizard1_NextButtonClick(object sender, WizardNavigationEventArgs e)
{
    if (Wizard1.ActiveStep == Step1)
    {
        IEnumerable<RadioButton> controls = FindControls<RadioButton>(Step1);
        controls.ToList().ForEach(c => c.Enabled = false);
    }
}

IEnumerable<T> FindControls<T>(Control parent) where T : Control
{
    foreach (Control c in parent.Controls)
    {
        if (c.GetType() == typeof(T)) yield return (T)c;
        foreach (var subControl in FindControls<T>(c))
            yield return subControl;
    }
}

Answer 2

好的，我已经检查过了，它不起作用，当step.allowreturn=false.