谷歌地图/Iframe动态src元素

Question

好吧，所以我的问题是我有一个iframe，用来显示谷歌地图

iframe的src将被设置为命中谷歌地图，从数据库中读取的地址将被插入作为位置

目前，框架只是纯白的，甚至没有图片出现，但是，如果src路径被放置到浏览器URL中，它可以正常工作，我的测试URL是"http://maps.google.com/maps/api/staticmap?markers=27+朗诗+街+贝尔法斯特&尺寸=500x300&传感器=错误"

如果你把地址栏放进去，你会发现这是有效的。

我的目标是让三个框架都单独命名，然后在它们上设置src。这是我到目前为止的代码

VB.NET公共类关于继承System.Web.UI.Page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    Session("recentAddressmap1") = ""
    Session("recentAddressmap2") = ""
    Session("recentAddressmap3") = ""
    Session("src1") = ""
    Session("src2") = ""
    Session("src3") = ""
    Dim recentCount As Integer
    recentCount = 0
    Dim addresstest As String = "27 Landseer Street"
    Dim words As String() = addresstest.Split(New Char() {" "c})
    ' Use For Each loop over words and display them
    Dim word As String
    Dim newaddress As String = ""
    Dim loopcounter As Integer = 0
    For Each word In words
        If loopcounter = 0 Then
            newaddress = word
            loopcounter = loopcounter + 1
        Else
            newaddress = newaddress & "+" & word
        End If
    Next
    '''''''''''''''''''''''''''''''''''''''''' DO ENTRY RECENT 1 '''''''''''''''''''''''''''''''''''''''''''''''''''
    Session("recentAddressmap1") = newaddress & ",Belfast"
    Session("src1") = "http://maps.google.com/maps/api/staticmap?markers=" & Session("recentAddressmap1") & "&size=500x300&sensor=false"
    'MsgBox(Session("src1"))
    visualAddress1.Attributes.Add("src", Session("src1"))
End Sub

终端类

ASPX-

<%@ Page Title="About Us" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false"
CodeBehind="About.aspx.vb" Inherits="email_tester.About" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
               <iframe width="425" height="350" scrolling="no" marginheight="0" marginwidth="0" id="visualAddress1" runat="server"></iframe>
</asp:Content>

Answer 1

给iframe一个ID+runat=server，然后从VB设置src怎么样？