c#开关语句和单选按钮列表
本文关键字：单选按钮 列表 语句 开关 | 更新日期: 2023-09-27 18:17:05
我正在工作的网页形式，我有一点麻烦。我在页面上有一个单选按钮列表，供用户从中选择一个项目。根据他们的选择，我希望在屏幕上显示一个字段，以便他们详细说明他们的请求。
这是我的单选按钮列表和面板的HTML:
<div class="formInformation">
<div class="reason">
<h3><b>Why are you requesting a new badge?</b></h3>
<asp:RadioButtonList ID="rblReason" runat="server" AutoPostBack="true"
RepeatDirection="Vertical" Width="350px"
onselectedindexchanged="rblReason_SelectedIndexChanged">
<asp:ListItem Text="Broken">Broken</asp:ListItem>
<asp:ListItem Text="Faded">Faded</asp:ListItem>
<asp:ListItem Text="Lost">Lost</asp:ListItem>
<asp:ListItem Text="NotWork">Doesn't Work</asp:ListItem>
<asp:ListItem Text="Name">Name Change</asp:ListItem>
<asp:ListItem Text="Title">Title Change</asp:ListItem>
<asp:ListItem Text="Dept">Dept/Location Change</asp:ListItem>
<asp:ListItem Text="Other">Other</asp:ListItem>
</asp:RadioButtonList>
</div>
<div class="reason">
<h3><b>Further Information:</b></h3>
<h4>*Fields will become visible depending on your selection to the left*</h4>
<asp:Panel ID="pnlLost" runat="server" Visible="False">
<div class="pnlText"><h5><b>Are you enrolled in QuickCharge?</b></h5></div>
<asp:RadioButtonList ID="rblLost" runat="server"
RepeatDirection="Horizontal" Width="350px">
<asp:ListItem>Yes</asp:ListItem>
<asp:ListItem>No</asp:ListItem>
</asp:RadioButtonList>
</asp:Panel>
<asp:Panel ID="pnlDoesNotWork" runat="server" Visible="False">
<div class="pnlText"><h5><b>Explain what doesn't work:</b></h5></div>
<asp:TextBox ID="txtNotWorking" runat="server" TextMode="MultiLine"
Width="225px"></asp:TextBox>
</asp:Panel>
<asp:Panel ID="pnlNameChange" runat="server" Visible="False">
<div class="pnlText"><h5><b>For name change:</b></h5></div>
<div class="pnlText">Submit request then contact HR: 770.836.9517</div>
</asp:Panel>
<asp:Panel ID="pnlTitleChange" runat="server" Visible="False">
<div class="pnlText"><h5><b>What is you new title?</b></h5></div>
<asp:TextBox ID="txtNewTitle" runat="server" TextMode="MultiLine"
Width="225px"></asp:TextBox>
</asp:Panel>
<asp:Panel ID="pnlDeptLocation" runat="server" Visible="False">
<div class="pnlText"><h5><b>What is your new Dept/Location?</b></h5></div>
<asp:TextBox ID="TextBox1" runat="server" TextMode="MultiLine"
Width="225px"></asp:TextBox>
</asp:Panel>
<asp:Panel ID="pnlOther" runat="server" Visible="False">
<div class="pnlText"><h5><b>Elaborate:</b></h5></div>
<asp:TextBox ID="TextBox2" runat="server" TextMode="MultiLine"
Width="225px"></asp:TextBox>
</asp:Panel>
</div>
</div>
这是我的c#显示面板基于选择在单选按钮列表
protected void rblReason_SelectedIndexChanged(object sender, EventArgs e)
{
switch (rblReason.SelectedItem.Text)
{
case "Broken":
pnlLost.Visible = false;
pnlDoesNotWork.Visible = false;
pnlNameChange.Visible = false;
pnlTitleChange.Visible = false;
pnlDeptLocation.Visible = false;
pnlOther.Visible = false;
break;
case "Faded":
pnlLost.Visible = false;
pnlDoesNotWork.Visible = false;
pnlNameChange.Visible = false;
pnlTitleChange.Visible = false;
pnlDeptLocation.Visible = false;
pnlOther.Visible = false;
break;
case "Lost":
pnlLost.Visible = true;
pnlDoesNotWork.Visible = false;
pnlNameChange.Visible = false;
pnlTitleChange.Visible = false;
pnlDeptLocation.Visible = false;
pnlOther.Visible = false;
break;
case "NotWork":
pnlDoesNotWork.Visible = true;
pnlLost.Visible = false;
pnlNameChange.Visible = false;
pnlTitleChange.Visible = false;
pnlDeptLocation.Visible = false;
pnlOther.Visible = false;
break;
case "Name":
pnlNameChange.Visible = true;
pnlLost.Visible = false;
pnlDoesNotWork.Visible = false;
pnlTitleChange.Visible = false;
pnlDeptLocation.Visible = false;
pnlOther.Visible = false;
break;
case "Title":
pnlTitleChange.Visible = true;
pnlLost.Visible = false;
pnlDoesNotWork.Visible = false;
pnlNameChange.Visible = false;
pnlDeptLocation.Visible = false;
pnlOther.Visible = false;
break;
case "Dept":
pnlDeptLocation.Visible = true;
pnlLost.Visible = false;
pnlDoesNotWork.Visible = false;
pnlNameChange.Visible = false;
pnlTitleChange.Visible = false;
pnlOther.Visible = false;
break;
case "Other":
pnlOther.Visible = true;
pnlLost.Visible = false;
pnlDoesNotWork.Visible = false;
pnlNameChange.Visible = false;
pnlTitleChange.Visible = false;
pnlDeptLocation.Visible = false;
break;
}
}
目前"破碎"，"褪色"，"丢失"answers"其他"的情况下工作完美。知道为什么其他四个没有吗?我试着查找拼写错误，但没有找到。但也有可能只是我看不到自己的错误。
感谢任何帮助!
您可能需要使用文本，因为当前文本属性在ListItem标记之间给出文本，而不是Text属性的文本。
case "Name":
case "Name Change"
或
<asp:ListItem Text="Name">Name Change</asp:ListItem>
<asp:ListItem Text="Name Change" Value="Name"></asp:ListItem>
你有可以避免的冗余代码
pnlLost.Visible = false;
pnlDoesNotWork.Visible = false;
pnlNameChange.Visible = false;
pnlTitleChange.Visible = false;
pnlDeptLocation.Visible = false;
pnlOther.Visible = false;
switch (rblReason.SelectedItem.Text)
{
case "NotWork":
pnlDoesNotWork.Visible = true;
break;
case "Name":
pnlNameChange.Visible = true;
break;
case "Title":
pnlTitleChange.Visible = true;
break;
case "Dept":
pnlDeptLocation.Visible = true;
break;
case "Other":
pnlOther.Visible = true;
break;
}
将Text属性更改为Value，如下:
<asp:ListItem Value="NotWork">Doesn't Work</asp:ListItem>
然后在开关箱中检查rblReason.SelectedValue
switch (rblReason.SelectedValue)
{
.
.
.
}
另一种可以考虑的方法是类似下面的代码，其中switch语句是不必要的。
var text = rblReason.SelectedItem.Text;
var culture = CultureInfo.InvariantCulture;
pnlLost.Visible = string.Equals(text, "Lost", culture);
pnlDoesNotWork.Visible = string.Equals(text, "???", culture);
...