如何在选择radiolistbutton的listitem时向用户显示该面板？ [英] How can I show the panel to user on selection of radiolistbutton's listitem?

问题描述

我试图在asp：RadioButtonList的asp：ListItem中选择asp：Panel。我尝试了很多次但是没有用。



我尝试过的事情：



protected void billOption_SelectedIndexChanged（object sender，EventArgs e）

{

if（billOption.SelectedValue ==2）

{

billaddpnl.Visible = true;

}

}

I am try to show the asp:Panel on the selection of asp:RadioButtonList's asp:ListItem. I am trying it many times but it is not working.

What I have tried:

protected void billOption_SelectedIndexChanged(object sender, EventArgs e)
{
if (billOption.SelectedValue == "2")
{
billaddpnl.Visible = true;
}
}

推荐答案

试试这样

Try like this

protected void billOption_SelectedIndexChanged(object sender, EventArgs e)
       {
           HideAllPanels(); // Hide all panels
           string selection = billOption.SelectedValue;
           switch (selection)
           {
               case "1":
                   Panel1.Visible = true;
                   break;

               case "2":
                   Panel2.Visible = true;
                   break;
                   .
                   .
                   .
               case "N":
                   PanelN.Visible = true;
                   break;

               case default:
                   HideAllPanels();
                   break;
           }
       }

       private void HideAllPanels()
       {
           Panel1.Visible = false;
           Panel2.Visible = false;
           Panel3.Visible = false;
           .
           .
           .
           PanelN.Visible = false;
       }

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