Question

CSS新手的第二个布局问题。

我在网站母版页的ASP.NET布局中生成了.Main div。我添加了一个名为“Show.aspx”的新页面，并为此添加了一些div。我想要做的是根据'Show.aspx'的描述div的大小扩展'.main'div

要添加，我在源服务器端添加了'description'div，其中.main位于站点主CSS页面中。

以下是显示问题的屏幕截图：

enter image description here

如图所示，白色.main div没有扩展。我试过添加溢出：自动，但再次无济于事。由于我在经过一些研究后在我的div上使用浮动样式，这可能是问题，但我不知道为什么。

代码：

sitemaster .main：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head runat="server">
<title></title>
<link href="~/Styles/Site.css" rel="stylesheet" type="text/css" />

</head>
<body>
<form runat="server">
<div class="page">

    <asp:ContentPlaceHolder ID="HeadContent" runat="server">
</asp:ContentPlaceHolder>
    <div class="header">
        <div class="title">

            <h1>

             <img id="Img1" src = "Images/coffe pic.png" alt="" runat="server" />
                Coffee Stop

                </h1>
        </div>
        <div class="loginDisplay">
        </div>
        <div class="clear hideSkiplink">
            <asp:Menu ID="NavigationMenu" runat="server" CssClass="menu" EnableViewState="false" IncludeStyleBlock="false" Orientation="Horizontal">
                <Items>
                    <asp:MenuItem NavigateUrl="~/Default.aspx" Text="Home"/>
                    <asp:MenuItem Text="Shop Online" Value="Shop Online"></asp:MenuItem>
                    <asp:MenuItem Text="Contact Us" Value="Contact Us"></asp:MenuItem>
                    <asp:MenuItem Text="About Us" Value="About Us"></asp:MenuItem>
                </Items>
            </asp:Menu>
        </div>
    </div>
    <div class="main">
        <asp:ContentPlaceHolder ID="MainContent" runat="server"/>
    </div>
    <div class="clear">
    </div>
</div>
<div class="footer">

</div>
</form>
</body>
</html>

我的服务器端添加了Show.aspx页面的div：

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Show.aspx.cs" Inherits="ViewCDs.Show" %>

   <asp:FormView ID="FormView1" runat="server" Height="141px">
       <EditItemTemplate>
           coffeeName:
           <asp:TextBox ID="coffeeNameTextBox" runat="server" 
               Text='<%# Bind("coffeeName") %>' />
           <br />
           coffeeOrigin:
           <asp:TextBox ID="coffeeOriginTextBox" runat="server" 
               Text='<%# Bind("coffeeOrigin") %>' />
           <br />
           coffeeStrength:
           <asp:TextBox ID="coffeeStrengthTextBox" runat="server" 
               Text='<%# Bind("coffeeStrength") %>' />
           <br />
           coffeeGrind:
           <asp:TextBox ID="coffeeGrindTextBox" runat="server" 
               Text='<%# Bind("coffeeGrind") %>' />
           <br />
           coffeePrice:
           <asp:TextBox ID="coffeePriceTextBox" runat="server" 
               Text='<%# Bind("coffeePrice") %>' />
           <br />
           coffeeQty:
           <asp:TextBox ID="coffeeQtyTextBox" runat="server" 
               Text='<%# Bind("coffeeQty") %>' />
           <br />
           coffeeRRP:
           <asp:TextBox ID="coffeeRRPTextBox" runat="server" 
               Text='<%# Bind("coffeeRRP") %>' />
           <br />
           <asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True" 
               CommandName="Update" Text="Update" />
           &nbsp;<asp:LinkButton ID="UpdateCancelButton" runat="server" 
               CausesValidation="False" CommandName="Cancel" Text="Cancel" />
       </EditItemTemplate>
       <InsertItemTemplate>
           coffeeName:
           <asp:TextBox ID="coffeeNameTextBox" runat="server" 
               Text='<%# Bind("coffeeName") %>' />
           <br />
           coffeeOrigin:
           <asp:TextBox ID="coffeeOriginTextBox" runat="server" 
               Text='<%# Bind("coffeeOrigin") %>' />
           <br />
           coffeeStrength:
           <asp:TextBox ID="coffeeStrengthTextBox" runat="server" 
               Text='<%# Bind("coffeeStrength") %>' />
           <br />
           coffeeGrind:
           <asp:TextBox ID="coffeeGrindTextBox" runat="server" 
               Text='<%# Bind("coffeeGrind") %>' />
           <br />
           coffeePrice:
           <asp:TextBox ID="coffeePriceTextBox" runat="server" 
               Text='<%# Bind("coffeePrice") %>' />
           <br />
           coffeeQty:
           <asp:TextBox ID="coffeeQtyTextBox" runat="server" 
               Text='<%# Bind("coffeeQty") %>' />
           <br />
           coffeeRRP:
           <asp:TextBox ID="coffeeRRPTextBox" runat="server" 
               Text='<%# Bind("coffeeRRP") %>' />
           <br />
           <asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" 
               CommandName="Insert" Text="Insert" />
           &nbsp;<asp:LinkButton ID="InsertCancelButton" runat="server" 
               CausesValidation="False" CommandName="Cancel" Text="Cancel" />
       </InsertItemTemplate>
       <ItemTemplate>

           <b>Origin:</b>
           <asp:Label ID="coffeeOriginLabel" runat="server" 
               Text='<%# Bind("coffeeOrigin") %>' />
           <br />

           <b>Grind:</b>
           <asp:Label ID="coffeeGrindLabel" runat="server" 
               Text='<%# Bind("coffeeGrind") %>' />
           <br />

           <b>Price: £</b>
           <asp:Label ID="coffeePriceLabel" runat="server" 
               Text='<%# Bind("coffeePrice") %>' />
           <br />

               <b>Strength:</b>
           <asp:Label ID="coffeeStrengthLabel" runat="server" 
               Text='<%# Bind("coffeeStrength") %>' />
           <br />

           <b>Stock Level:</b>
           <asp:Label ID="coffeeQtyLabel" runat="server" Text='<%# Bind("coffeeQty") %>' />
           <br />


       </ItemTemplate>
   </asp:FormView>
   <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
       ConnectionString="<%$ ConnectionStrings:CoffeeConnectionString %>" 
       SelectCommand="SELECT [coffeeName], [coffeeOrigin], [coffeeStrength], [coffeeGrind], [coffeePrice], [coffeeQty], [coffeeRRP] FROM [Coffees]">
   </asp:SqlDataSource>

   <br />

的

豆子平滑课程

  <div style=" float:left; width: 165px; height: 40px;">
  <br />
      <b><asp:Label ID="Label2" runat="server" Text="Quantity:"></asp:Label></b>
 </div>

  <div style=" float:right; width: 165px; height: 40px;">
   <br />

      <asp:TextBox ID="TextBox1" runat="server" Width="40px">1</asp:TextBox>

 </div>
     <div style=" float:left; width: 165px; height: 40px;">
     <br />

         <asp:Button ID="Button1" runat="server" Text="Buy" />

 </div>

 <div>

</div>
</div>

<br />
<br />

<div id = "titleDescrip" style="position:absolute; top:445px; font-size:20pt;" runat="server" > 

</div> 

<div id="divDescrip" style="position:absolute; top:480px; width:925px;" runat="server"> 

</div>

</asp:Content>

Answer 1

看到你需要了解的东西很少。

Master Page和Child页面在运行时合并为一个。

我的意思是假设你的母版页下面有容器

<div class="main">
     <asp:ContentPlaceHolder id="mainContent" runat="server">
     </asp:ContentPlaceHolder">
</div>

在您的子页面中，即Show.aspx，您的容器就像

一样

   <asp:Content id="mains" ContentPlaceHolderId="mainContent">
         <div class="pagecontent">
         </div>
         <div class="description">
         </div> 
   </asp:Content>

然后在运行时它们被渲染成这样的东西（ofcours还有更多的容器）：

<div class="main">
    <div class="pagecontent">
    </div>
    <div class="description">
    </div>
</div>

其次，您使用position:absolute作为内部元素，不要那样做。

当你执行position:absolute时，你从文档正常流中删除那个元素，所以现在，松散地说，父div，不关心它的绝对定位子的维度是什么!!

请参阅此fiddle。

无论你给内部div的高度如何，main总是相应地扩展，因为main没有定义高度，因此它的高度为：auto

Answer 2

尝试

.main

{

display:table-column;
padding: 0px 12px;
margin: 12px 8px 8px 8px;
min-height: 420px;

}

并添加display：block;到儿童班

基于浮动div扩展div

2 个答案: