html - asp.net 表单设计使用 css 绝对位置

Question

我使用表格为我的 Web 应用程序设计表单。但是，随着控件数量的增加，它会使我的标记变得困惑。我可以使用内联 CSS(指定绝对位置、顶部、左侧)进行表单设计吗？这会对性能产生影响吗？是否有任何工具或技术可以轻松设计表单？以下是当前标记。

    <div style="position:relative;  height: 280px;width: 910px;"  class="employee-second-tab">
            <asp:Label ID="Label10" runat="server" style="position:absolute; top: 31px; left: 35px;" >Date of Birth:</asp:Label>
            <div  style="position:absolute; top: 30px; left: 123px;">
                 <asp:TextBox ID="dateOfBirth" runat="server" CssClass="datepicker" Width="155px"></asp:TextBox>
            </div>
           <asp:Label ID="Label11" runat="server" style="position:absolute; top: 61px; left: 28px;" Text="Marital Status:"></asp:Label>
           <asp:DropDownList ID="maritalStatus" runat="server" style="position:absolute; top: 60px; left: 123px;" Width="180px">
               <asp:ListItem Value="-1">--SELECT--</asp:ListItem>
               <asp:ListItem>Single</asp:ListItem>
               <asp:ListItem>Divorced</asp:ListItem>
               <asp:ListItem>Married</asp:ListItem>
               <asp:ListItem>Widow(er)</asp:ListItem>
            </asp:DropDownList>

           <asp:Label ID="Label12" runat="server" style="position:absolute; top: 91px; left: 65px;" Text="Gender:"></asp:Label>
           <asp:RadioButton ID="genderMale" runat="server" Checked="True" 
            GroupName="gender" style="position:absolute; top: 90px; left: 123px;" 
            Text="Male" />
           <asp:RadioButton ID="genderFemale" runat="server" GroupName="gender"  style="position:absolute; top: 90px; left: 210px;" Text="Female" />

        <asp:Label ID="Label13" runat="server" style="position:absolute; top: 121px; left: 60px;"  Text="Children:"></asp:Label>
        <asp:TextBox ID="children" runat="server" style="position:absolute; top: 120px; left: 123px;"  Width="180px"></asp:TextBox>

        <asp:Label ID="Label14" runat="server" style="position:absolute; top: 151px; left: 33px;"  Text="Home Phone:"></asp:Label>
        <asp:TextBox ID="homePhone" runat="server" style="position:absolute; top: 150px; left: 123px;"  Width="180px"></asp:TextBox>
        <asp:Label ID="Label15" runat="server" style="position:absolute; top: 181px; left: 67px;" Text="Mobile:"></asp:Label>
        <asp:TextBox ID="mobile1" runat="server" style="position:absolute; top: 180px; left: 123px;" 
            Width="180px"></asp:TextBox>
        <asp:TextBox ID="mobile2" runat="server" style="position:absolute; top: 210px; left: 123px;" Width="180px"></asp:TextBox>
        <asp:Label ID="Label16" runat="server" style="position:absolute; top: 241px; left: 77px;" Text="Email:"></asp:Label>
        <asp:TextBox ID="email" runat="server" style="position:absolute; top: 240px; left: 123px;" Width="180px"></asp:TextBox>
        <asp:Label ID="Label17" runat="server" style="position:absolute; top: 31px; left: 397px;" Text="Address:"></asp:Label>
        <asp:TextBox ID="address1" runat="server" style="position:absolute; top: 30px; left: 460px;" Width="180px"></asp:TextBox>
        <asp:TextBox ID="address2" runat="server" style="position:absolute; top: 60px; left: 460px;" Width="180px"></asp:TextBox>
        <asp:Label ID="Label18" runat="server" style="position:absolute; top: 91px; left: 424px;" Text="City:"></asp:Label>
        <asp:TextBox ID="city" runat="server" style="position:absolute; top: 90px; left: 460px;" Width="180px"></asp:TextBox>
        <asp:Label ID="Label19" runat="server" style="position:absolute; top: 121px; left: 403px;" Text="PO Box:"></asp:Label>
        <asp:TextBox ID="poBox" runat="server" 
            style="position:absolute; top: 120px; left: 460px;" Width="180px"></asp:TextBox>

        <asp:Label ID="Label20" runat="server" style="position:absolute; top: 151px; left: 416px;" Text="State:"></asp:Label>
        <asp:TextBox ID="state" runat="server" style="position:absolute; top: 150px; left: 460px;" Width="180px"></asp:TextBox>

        <asp:Label ID="Label21" runat="server" style="position:absolute; top: 181px; left: 393px;" Text="ZIP Code:"></asp:Label>
        <asp:TextBox ID="zipCode" runat="server" style="position:absolute; top: 180px; left: 460px;" 
            Width="180px"></asp:TextBox>

        <asp:Label ID="Label22" runat="server" style="position:absolute; top: 211px; left: 400px;" Text="Country:"></asp:Label>
        <asp:DropDownList ID="country" runat="server" style="position:absolute; top: 210px; left: 460px;" Width="180px">
        </asp:DropDownList>

        <asp:Label ID="Label23" runat="server" style="position:absolute; top: 241px; left: 383px;" Text="Nationality:"></asp:Label>
        <asp:DropDownList ID="nationality" runat="server" style="position:absolute; top: 240px; left: 460px;" Width="180px">
        </asp:DropDownList>
    </div>  

Answer 1

关于您的问题

Can I use inline CSS(with absolute position, top, left specified) for form designing ?

是的，你可以

Will this make any performance impact ?

没有

Is there any tool, or technique to easily design Forms ?

Visual Studio 在设计模式下完美地做到了这一点。

一般来说，你应该停止使用这样的布局。假设，系统会要求您删除“出生日期”字段。使用当前布局，您将需要更改所有以下字段和标签的坐标以将它们向上移动。如果您使用 html 表格或 div，则不会发生这种情况。另一个问题是，当调整窗口大小或在小屏幕上时，绝对定位将无法正常工作。

您当前的表单没有什么特别之处，您可以轻松地用

做同样的事情

<table>
<tr>...</tr>
</table>

或

<div>...</div>
<div>...</div>

您可以更灵活地编码。