我想使用 GridView 生成复选框字段，系统将根据 totalDay 的数量计算要显示的字段数。如果数据库中存储的totalDay是7，那么调用eventID时会生成7个checkbox，D1-D7 checkboxes字段会出现；如果 totalDay 为 5，它将生成 5 个复选框，将出现 D1-D5 复选框字段。
在 PHP 中，我设法根据值 totalDay 自动生成我想要的 D 字段数。但我不知道如何在 VB 中编写代码。
PC Fair Event 为期 7 天，因此在用户选择要预订的活动和展位后，它将显示 7 个复选框：
嘉年华 2012 的持续时间为 5 天，因此在用户选择要预订的活动和展位后，它将显示 5 个复选框：
PHP中可以生成复选框的代码：
$query = "select * from booths, eventinfo where booths.eventID=eventinfo.eventID && booths.eventID = ".$id."";
$_SESSION['EVENT_ID']=$id;
$result = mysql_query($query);
$result2= mysql_query($query);
echo "<table border='0' style='width:400px;table-layout:fixed'>";
$rows2 = mysql_fetch_array($result);
$Day=$rows2['totalDay'];
echo "<table>";
for ($day = 0; $day <= $Day; ++$day) {
if($day==0){
echo "<th>Booth</th>";
}else{
echo "<th>D".$day."</th>";
}
}
while($rows = mysql_fetch_array($result2)){
$boothAlias=$rows['boothAlias'];
$totalDay=$rows['totalDay'];
$boothID=$rows['boothID'];
echo "<tr><td>$boothAlias</td>";
for ($day2 = 1; $day2 <= $totalDay; ++$day2) {
$d=$rows["D$day2"];
if ($d==0){
echo "<td><input name='totalDay[]' type='checkbox' value='$boothAlias $boothID $day2'/></td>";
}else{
echo "<td><input name='totalDay[]' type='checkbox' value='$boothAlias $day2' disabled='true'/></td>";
}
}
echo "</tr>";
}
echo "</table>";
}
}
我不知道如何调用 totalDay 值并循环检查 VB 中的 D 字段。有没有更好的解决方案来生成复选框？可以只重用一个itemtemplate来生成checkbox并绑定D字段吗？
以下是我当前的 VB 代码：
<%@ Page Language="VB" MasterPageFile="~/MasterPageMember.master" AutoEventWireup="false" CodeFile="member_view_event_list.aspx.vb" Inherits="member_view_event_list" title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="ContentPlaceHolder2" runat="server"
contentplaceholderid="ContentPlaceHolder2">
<table width="80%">
<tr><td class="style10"> </td><td class="style8"> </td><td> </td></tr>
<tr><td class="style10">
<asp:Label ID="Label1" runat="server" Text="Select Event:"></asp:Label>
</td><td class="style8">
<asp:DropDownList ID="ddlEventList" runat="server"
DataSourceID="SqlDataSourceEvent" DataTextField="eventTitle"
DataValueField="eventID" AutoPostBack="True" Width="200">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSourceEvent" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString1 %>"
SelectCommand="SELECT DISTINCT [eventTitle], [eventID] FROM [booth_eventinfo]">
</asp:SqlDataSource>
</td><td>
</td></tr>
<tr><td class="style10">
<asp:Label ID="Label2" runat="server" Text="Select Booth:"></asp:Label>
</td><td class="style8">
<asp:DropDownList ID="ddlBoothList" runat="server"
DataSourceID="SqlDataSourceBooth" DataTextField="boothAlias"
DataValueField="boothID" AutoPostBack="True" Width="200">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSourceBooth" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString1 %>"
SelectCommand="SELECT [boothAlias], [boothID] FROM [booth_eventinfo] WHERE ([eventID] = @eventID)">
<SelectParameters>
<asp:ControlParameter ControlID="ddlEventList" Name="eventID"
PropertyName="SelectedValue" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
</td><td>
</td></tr>
<tr><td class="style10">
</td><td class="style8">
</td><td>
</td></tr>
<tr><td class="style9" colspan="3">
<asp:GridView ID="GridViewDay" runat="server" AutoGenerateColumns="False"
CellPadding="4" DataSourceID="SqlDataSourceDay" ForeColor="#333333"
GridLines="None">
<RowStyle BackColor="#FFFBD6" ForeColor="#333333" />
<Columns>
<asp:TemplateField HeaderText="Day1" SortExpression="D1" HeaderStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" Checked='<%# Bind("D1") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Day2" SortExpression="D2" HeaderStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox ID="CheckBox2" runat="server" Checked='<%# Bind("D2") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Day3" SortExpression="D3" HeaderStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox ID="CheckBox3" runat="server" Checked='<%# Bind("D3") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Day4" SortExpression="D4" HeaderStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox ID="CheckBox4" runat="server" Checked='<%# Bind("D4") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Day5" SortExpression="D5" HeaderStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox ID="CheckBox5" runat="server" Checked='<%# Bind("D5") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Day6" SortExpression="D6" HeaderStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox ID="CheckBox6" runat="server" Checked='<%# Bind("D6") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />
<HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSourceDay" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString1 %>"
SelectCommand="SELECT [D1], [D7], [D6], [D5], [D4], [D3], [D2] FROM [booth_eventinfo] WHERE ([boothID] = @boothID)">
<SelectParameters>
<asp:ControlParameter ControlID="ddlBoothList" Name="boothID"
PropertyName="SelectedValue" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
</td></tr>
<tr><td class="style10">
</td><td class="style8">
</td><td>
</td></tr>