我有一个 div,其内容将通过 javascript 填充并返回一个图像,但我的问题是:我有 4 个下拉列表,AutoPostBack=true 并且它导致我的 div 的内容消失......我如何将图像保存到总是出现?我已经阅读了有关 ViewState 的信息,但无能为力...
这是我的代码:
<script language="javascript" type="text/javascript">
function fonte(lat, lon) {
var src = "http://maps.google.com/maps/api/staticmap?center=" + lat + "," + lon + "&zoom=15&size=540x280&maptype=roadmap&markers=color:red|" + lat + "," + lon + "&sensor=false";
testando(src, 540, 280, "Mapa");
}
function endereco(endereco) {
var fonte = endereco.split(' ').join('+');
var src = "http://maps.google.com/maps/api/staticmap?center=" + fonte + "&zoom=16&size=540x280&maptype=roadmap&markers=color:red|" + fonte + "&sensor=false";
testando(src, 540, 280, "Mapa");
}
function testando(src, width, height, alt) {
var img = document.createElement("img");
img.src = src;
img.width = width;
img.height = height;
img.alt = alt;
document.getElementById("mapa").innerHTML=img;
}
</script>
。网
<div class="formLine" id="mapa1" style="width:100%; height:100%" align="center" runat="server">
我也尝试从 div 更改为面板,但没有任何改变
<asp:Panel ID="mapa" runat="server" style="width:100%; height:100%" align="center" Visible="true">
</asp:Panel>