标签的可见属性有问题 [英] Problem with visible property of a label

问题描述

大家好！

我已经贴了一个标签，用于向用户显示消息.
我有一个下拉列表.如果下拉列表的项目计数为0，我想向用户显示标签，否则不显示.我做了以下工作，但是没有按预期工作.您能告诉我这段代码有什么问题吗?我应该怎么做才能获得预期的结果?

Hello all!!

I have taken a label for showing message to the user.
I have a dropdown-list. If the Item Count of dropdown list is 0, i want to show the label to the user else not. I did the following but it''s not working as expected. Can you please tell me what''s wrong with this code and what should i do to get the expected result ??

<asp:Label ID="lblMessage" runat="server" Text="Currently there are no products in this category" Visible='<%# bool.Parse((ddlProducts.Items.Count==0).ToString())%>' Font-Bold="true" Font-Italic="true" Font-Names="Georgea"></asp:Label>
</td>

它总是将标签设置为可见，而当项目计数不为零时，则不应向用户显示.

It''s always setting the label as visible whereas when the item count is not zero it should not be shown to the User.

推荐答案

我认为如果u在您需要的页面加载时进行检查，
if(ddlProducts.Item.Count == 0)
{
lblMessage.visible = true;
}
并使用aspx语法visible ="false"保留其visible属性.我认为这可以解决您的问题.

i think its better if u check it on page load where u required it as,
if(ddlProducts.Item.Count == 0)
{
lblMessage.visible = true;
}
and keep its visible property in aspx syntax visible="false". i think this may solve your problem.

这篇关于标签的可见属性有问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！