我有一些问题需要帮助。
我有以下代码:
<div class="UpperClass"></div>
<div class="LowerClass"></div>
使用以下简单的CSS:
.UpperClass{
background-color: red;
width: 50px;
height: 50px;
}
.MiddleClass{
background-color: green;
width: 50px;
height: 50px;
}
.LowerClass{
background-color: blue;
width: 50px;
height: 50px;
}
现在,在代码背后我动态添加中间类div:
int count = 1; //Could be anything
foreach (var item in count)
{
Label placeholder = new Label();
StringBuilder sbExample = new StringBuilder();
sbExample.append("<div class='MiddleClass'></div>");
HtmlString text = new HtmlString(sbExample.ToString());
placeholder.Text = text.ToString();
this.Controls.Add(placeholder);
}
现在,所有3个div都显示在页面上,但是带有middleclass的div落后于大写,我想要的是高级第一个,然后是所有middleclass div,低于低级div,所有这些都很好地排序在下面彼此。我该怎么做?
提前致谢。
修改
另外,如果我想要一个包装器,我怎么能这样放置它:
<div class="wrapper">
<div class="UpperClass">
</div>
//Middle class here
<div class="LowerClass">
</div>
</div>
答案 0 :(得分:1)
在前端有这个:
<div class="UpperClass"></div>
<%= PopulateMiddleClass() %>
<div class="LowerClass"></div>
并在后端
String PopulateMiddleClass()
{
String ret = "";
//loop through and populate string
return ret;
}
或者
<div class="UpperClass"></div>
<asp:PlaceHolder ID="MyPlaceHolder" runat="server"></asp:PlaceHolder>
<div class="LowerClass"></div>
然后在后端
Page_Load(object sender, EventArgs e)
{
Literal literal = new Literal();
literal.Text = "<div class='MiddleClass'></div>";
MyPlaceHolder.Controls.Add(literal); // you could loop through and keep adding controls or you could compile them all into the one literal.
}
希望这能让你顺利上路。
答案 1 :(得分:1)
您可以使用 runat =“server”属性创建一个div,并使用它,如下所示:
设计页面
<div class="wrapper">
<div class="UpperClass">
</div>
<div runat="server" id="divMiddle">
</div>
<div class="LowerClass"></div>
</div>
代码背后:
int count = 1; //Could be anything
for (int i = 0; i < count; i++ )
{
Label placeholder = new Label();
StringBuilder sbExample = new StringBuilder();
sbExample.Append("<div class='MiddleClass'></div>");
HtmlString text = new HtmlString(sbExample.ToString());
placeholder.Text = text.ToString();
this.divMiddle.Controls.Add(placeholder);
}