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问题描述
我想在源文件中使用其他代码,这是我的代码:
I want to use if else in source file, here is my code:
<span style="float: left; width: 100px; text-align: center; margin-right: 10px; margin-bottom: 10px">
<a href='../profile.aspx?member_id=<%=comments_member_id%>'>
<img alt="<%=member_name%>" title="<%=member_name%>" src='../img/avatars/<%=img_url%>' style="width: 80px; height: 80px">
<img alt="<%=member_name%>" title="<%=member_name%>" src="../img/blank.gif" style="width: 80px; height: 80px">
</a>
</span>
如果img_url不为null,我将在这里使用它显示第一个图像.
否则显示第二张图片,所以请告诉我如果在那里还有其他地方该如何使用.
在此先感谢
here i wnt to use if img_url is not null then it display first image.
else display the second image, so please tell me how can i use if else in there.
Thanks in advance
推荐答案
<% if (1 = 1) {%>
<img alt="<%=member_name%>" title="<%=member_name%>" src="../img/avatars/<%=img_url%>" style="width: 80px; height: 80px">
<%} else {%>
<img alt="<%=member_name%>" title="<%=member_name%>" src="../img/blank.gif" style="width: 80px; height: 80px">
<% }%>
您也可以使用javascript.
Also you can use javascript.
<script type="text/javascript">
if (1=1)/*Change your conditions here*/
{
document.getElementById("image1").style.display = "none";
document.getElementById("image2").style.display = "block";
}
else
{
document.getElementById("image1").style.display = "block";
document.getElementById("image2").style.display = "none";
}
</script>
<% if (member_name == "")%>
<pre lang="xml"><img alt="<%=member_name%>" title="<%=member_name%>" src='../img/avatars/<%=img_url%>' style="width: 80px; height: 80px">
]]>
]]>
<img alt="<%=member_name%>" title="<%=member_name%>" src="../img/blank.gif" style="width: 80px; height: 80px">
<img alt="<%=member_name%>" title="<%=member_name%>" src=''<%= string.IsNullOrEmpty(img_url) ? "../img/blank.gif" : "../img/" + img_url %> style="width: 80px; height: 80px">
如果使用asp图像控件,则需要类似这样的
If you use asp image control, then you need to similar like this
<asp:Image ID="imgOnOff" runat="server" ImageUrl=''<%#(DataBinder.Eval(Container.DataItem,"b_default_value").ToString()=="True")?"~/Images/checkboxOn.gif":"~/Images/checkboxOff.gif"%>'' />
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