Asp.net calls 51 DITU

Last Update:2018-12-05 Source: Internet

Author: User

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Front-end:

<% @ Page Language = "C #" autoeventwireup = "true" codefile = "mapsdemo. aspx. cs" inherits = "_ default" %>

<! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<HTML xmlns = "http://www.w3.org/1999/xhtml">
<Head id = "head1" runat = "server">
<Title> my 51 maps </title>

<SCRIPT type = "text/JavaScript">
Function onload ()
{
VaR coordinates = Document. getelementbyid ("hidaddress"). value. Split (",");
VaR maps = new ltmaps ("mapdiv ");
VaR point = new ltpoint (coordinates [0], coordinates [1]);
Maps. centerandzoom (New ltpoint (coordinates [0], coordinates [1]), coordinates [2]);
Var control = new ltstandmapcontrol ();
Maps. addcontrol (control );
VaR marker = new ltmarker (point );
Maps. addoverlay (Marker );
}
</SCRIPT>

</Head>
<Body>
<Form ID = "form1" runat = "server">
<Input id = "hidaddress" runat = "server" type = "hidden"/>
* Tip: use it on a map

The approximate position is marked. The result may be inaccurate and is for reference only.

<SCRIPT type = "text/JavaScript">
Function setmap (point, zoom)
{
Document. getelementbyid ("longpolling"). value = point. getlongpolling ();
Document. getelementbyid ("latitude"). value = point. getlatitude ();
Document. getelementbyid ("level"). value = zoom;
Document. form1.submit ();
}
VaR EZ = new ltezmarker ("ezmarker ");
VaR coordinates = Document. getelementbyid ("hidaddress"). value. Split (",");
VaR point = new ltpoint (coordinates [0], coordinates [1]);
EZ. setvalue (point, parseint (coordinates [2]);
Ltevent. addlistener (EZ, "Mark", setmap );
</SCRIPT>

<SCRIPT type = "text/JavaScript">
Onload ();
</SCRIPT>

</Form>
</Body>
</Html>
Background:

Using system;
Using system. configuration;
Using system. Data;
Using system. LINQ;
Using system. Web;
Using system. Web. Security;
Using system. Web. UI;
Using system. Web. UI. htmlcontrols;
Using system. Web. UI. webcontrols;
Using system. Web. UI. webcontrols. webparts;
Using system. xml. LINQ;

Public partial class _ default: system. Web. UI. Page
{
Protected void page_load (Object sender, eventargs E)
{
String address = NULL;
If (! Ispostback)
{
Address = "12085627,3201350, 3"; // read database coordinates
This. hidaddress. value = address;
}
Else
{
String addressupdate = This. longpolling. Value + "," + this. Latitude. Value + "," + this. level. value;
Address = addressupdate; // update database coordinates
This. hidaddress. value = address;
}
}
}

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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