![](/img/trans.png)
[英]How to pass session value from aspx (stored using javascript) to cs
[英]pass value from aspx to javascript
我有一組地址,可用來在地圖上加載,
我使用HiddenField將那些地址從cs文件加載到javascript
// In code behind
string []arr=new string[]
{
"51.482238,0.001581",
"51.473364,0.011966","51.471974,-0.000651",
"51.472108,-0.002196","51.474995,-0.003827",
"51.476492,-0.005629","51.477855,-0.006058",
"51.478443,-0.007045","51.479298,-0.007861",
"51.481202,-0.002136","51.481577,-0.0022"
};
for ( int j = 0; j < arr.Length ; j++ )
{
HiddenField1.Value += arr[j] + ":";
}
}
//in javascript
var hidValue= document.getElementById("<%=HiddenField1.ClientID%>").value;
var latlonArr = hidValue.split(':');
for (var i = 0; i < latlonArr.length - 1; i++)
{
//alert("item :"+ i + " : "+latlonArr[i]);
var latlonA = latlonArr[i].split(',');
var latlon = new google.maps.LatLng(latlonA[0],latlonA[1]);
arrCoords.push(latlon);
}
所以,現在,如果我還有更多沒有。 地址,如果地址范圍從100到1000或更多,可以選擇HiddenField。
用您可能擁有的最大地址數檢查性能,如果性能還可以,那么應該沒問題。 如果性能不佳,則考慮異步獲取地址,例如一次獲取100個。
在后台代碼中,您可以使用:
string []arr=new string[]
{
"51.482238,0.001581",
"51.473364,0.011966","51.471974,-0.000651",
"51.472108,-0.002196","51.474995,-0.003827",
"51.476492,-0.005629","51.477855,-0.006058",
"51.478443,-0.007045","51.479298,-0.007861",
"51.481202,-0.002136","51.481577,-0.0022"
};
HiddenField1.Value = arr.join(",");
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.