与真/假的比较 [英] comparision with true/false
问题描述
嗨朋友们,
我的情景是我将状态列值存储为true / false。
i创建一个下拉列表,其中包含三个选项,如1.select status 。 2.活动3.停用。
我的问题是我无法将这些值与我的状态(真/假)进行比较。
如果你有任何请给我解决方案。
提前感谢
Hi friends,
my scenario is I store a "status" column value as true/false.
i create a dropdown list with three option like 1.select status. 2. Active 3. De-Active.
My problem is that i am not able to compare these value to my status(true/false).
if you have any solution for that please give me.
thanks in advance
推荐答案
试试这个,
Try this,
<asp:DropDownList ID="ddlStatus" runat="server">
<asp:ListItem Text="Active" Value="1"></asp:ListItem>
<asp:ListItem Text="De-Active" Value="0"></asp:ListItem>
</asp:DropDownList>
if(ddlStatus.SelectedValue=="1") // For Active Status
// Do Your Code
else if(ddlStatus.SelectedValue=="0") // For De-Active Status
// Do Your Code
我建议使用枚举。以下简单的东西就足够了:
I recommend an enumeration. Something as simple as the following may be enough:
public enum myStatus
{
Inactive = 0
,
Active = 1
}
然后传入数值。你没有将true / false存储为字符串,对吗?对吗?
我的文章这里 [ ^ ]可能会提供更多想法。
Then pass in the numeric value. You''re not storing the true/false as strings, right? Right?
My article here[^] may give some more ideas.
>
当你有下拉列表时,可以将所选状态转换为布尔值,然后再将其保存到数据库中。
例如:
When you have your drop down list, you could convert the selected status to a Boolean value before saving it to your database.
eg:
if ddlStatus = ACTIVE then
blnStatus = true
else
blnStatus = false
end if
另一个想法是在你的表中有一个StatusID列链接回你的Status表(而不是true / false) - 那个如果您决定添加新状态(说Pending,On Hold或其他),您只需在状态表中添加一个新值即可显示在状态下拉列表中。
Another idea would be to have a StatusID column in your table that links back to your Status table (rather than true/false) - that was if you decide to add a new Status (say Pending, On Hold or whatever), you can simply add a new value to your Status table to display in your status dropdown list.
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