Google Maps Control for ASP.Net – Part 2

Thank you very much for this great web user control.

 

I have a one question here, how can i put some pins on client click. For example i want users to put only one pin on the map and there will be a save marker button when the user clicks on the button, the coordinates will be saved in database.

Thanks

First, Thanks for a Nice collection of code.
But, when I use “MapWithDraggableIcons” I gets a Error in the following function:
Is Says “document.getElementById(”)” dont return a valid Object.

 

I look forward to hear from you.
Regads
Thomas.

function RaiseEvent(pEventName,pEventValue)
{
document.getElementById(”).value = pEventName;
document.getElementById(”).value = pEventValue;
__doPostBack(‘UpdatePanel1’,”);

Hi Shabdar,

 

I upgraded to your new v1.5 control, so far it looks great.

In v.1.4 I had added G_PHYSICAL_MAP map type, enableDoubleClickZoom, and enableScrollWheelZoom, and all worked great. I moved my code changes over into the new GoogleMapAPIWrapper,js file (see below) but none of the functions work now. Any ideas?

Chris

// Add the Terrain map type
map.addMapType(G_PHYSICAL_MAP);

map.setMapType(eval(result.MapType));
// Add zoom via mouse double click
map.enableDoubleClickZoom();
// Add zoom via mouse scroll wheel
map.enableScrollWheelZoom();

When I send parameters to a aspx file this mymap.aspx?id=2
I got a Decode error in s = System.Web.HttpContext.Current.Request.MapPath(PageName).Split(new char[] { ” }); Becayse Pagename include th “?id=2”
I have changed this to solv the problem in cGoogleMap.cs:
public static string GetLocalPath()
{
string[] s = System.Web.HttpContext.Current.Request.Url.AbsoluteUri.Split(new char[] { ‘/’ });
string PageName = s[s.Length – 1];
int PageNameLength = PageName.IndexOf(“?”); // New
if (PageNameLength != -1) // New
{ // New
PageName = PageName.Substring(0, PageNameLength);
} // New
s = System.Web.HttpContext.Current.Request.MapPath(PageName).Split(new char[] { ” });

 

string path = s[0] + “”;
for (int i = 1; i < s.Length – 1; i++)
{
path = path + s[i] + “”;
}

return path;

I hope you will aplly this to your code base !

Is there a way to put a hyperlink inside the InfoHTML html text that contains javascript to fire a server-side event?

 

I one to add a ‘Select’ link in the InfoHTML. When clicked, it should fire a server-side event with that marker’s information sent to the code-behind, so the server can change the marker icon and redraw the map.

Sure would appreciate a small example; I’ve been struggling with this one for days.

Chris

GetLocalPath() in cGoogleMap.cs doesn’t handle URLs with query strings.

 

ex:
‘locate_dealer.aspx?zipcode=02360’ is not a valid virtual path.

I did a second split on the ? to fix it.

Hey, this is very useful and i love that you can dynamically set the push pins by longitude and latitude, but is there a way of setting them by a postcode? Or is there a simple way of getting the longitude and latitude values from a postcode?

 

Help with this would be invaluable. Thanks Si!

Hi

 

In denmark we use “,” as the default seperator, but the converter function use systemet setting, it must be hardcodet to use “.” as Seperator.
I made a small addon to Code:
public static double GetNumericValue(object pNumValue)
{
if ((pNumValue == null))
{
return 0;
}
System.Globalization.NumberFormatInfo GoogleFormat = new System.Globalization.NumberFormatInfo(); // New
GoogleFormat.NumberDecimalSeparator = “.”; // New
if (IsNumeric(pNumValue))
{
return double.Parse((pNumValue.ToString()), GoogleFormat); // Updated.
}
else
{
return 0;
}

I hope you will use this in next release, or make your own type of code 😉

I was hoping you’d show how to read an SQL table and get the Lng/Lat data as pushpins into your maps… Thank you!

Is it possible to hide the map control on the page and then show it on the click of a Button ?
This button would be in another UpdatePanel on the same Page.

 

I tried it, but ran into a problem where the UpdatePanelXXXYYY could not be found (I don’t know the exact message right now) ?

Regards,

Geert Veenstra

Hi Shabdar

 

Has anyone taken a look a the GStreetviewOverlay in order to provide a map ‘street view’?

Here is a nice glimpse at what it can do:
http://googlemapsapi.blogspot.com/2008/03/street-view-in-api-or-how-i-spent-my.html

Any plans to add this in upcoming versions?

I have a requirement as:
I want to add a Plane Map of India on a aspx Page. It should only show states boundaries. On clicking of a particular state it should get highlighted and i want to show some further information pertaining to that state, which is stored in database. How can i do that in visual studio 2005.

Is it possible to use the Google Maps Control in SQL Server Reporing services 2005?

 

I have stored the coordinates in the DB and to jump to an URL. The parameter ( coordinates, Text ) should be transferd over the Hyperlink Address.

Or is there an other way ?

HI,

 

I downloaded your component, started up VS2008 after updating to 3.5 the application run quite well.

I then tried the setup steps outlined above to create a new project and on build received a message that I was missing a Script Manager. I added one and the result was a blank page.

Do you have any suggestions on how to get started so that the default map displays?

Thanks In Advance,
James

Great article!I have to remember the latitude and longitude of the icons in sql table.I did it,but with one error,which come very rare.When I drag one icon everything is ok.But when I have two or more icons when i am dragging some of them the dragged before the last go to the “old” place and in the table the “old coordinates” are stored.But the last is stored with new coordinates.I can’t understand why.

Hi again!I have another question.I make my error,but i have one question about the service.

 

public void SetLatLon(string pID, double pLatitude, double pLongitude)
{
GoogleObject objGoogleNew = (GoogleObject)System.Web.HttpContext.Current.Session[“GOOGLE_MAP_OBJECT”];
GoogleObject objGoogleOld = (GoogleObject)System.Web.HttpContext.Current.Session[“GOOGLE_MAP_OBJECT_OLD”];
objGoogleNew.Points[pID].Latitude = pLatitude;
objGoogleNew.Points[pID].Longitude = pLongitude;
//objGoogleOld.Points[pID].Latitude = pLatitude;
//objGoogleOld.Points[pID].Longitude = pLongitude;
}
I marked this two lines an everything is ok.What is the purpose of them.

I marked them because i think that the GetOptimizedGoogleObject() can’t understand about the changet point location.

Is it possible to use this in a Web Application VS2005? I have spent quite a few hours trying. First I recieved the GService is undefined error and seam to have gotten past that by adding Inline scripts = true

 

But now I get Error: no element found
Source File: http://localhost/website/GService.asmx/GetGoogleObject
Line: 1

I see the div with the Google logo on the bootom but no map

Any ideas would be appreciated

Have you thought about incorporating this?

 

“If you have an existing Maps API site, you can 3D-enable your page with as little as one line of code.”

I noticed the following behavior in your example “Google Map with Draggable pushpins”
when you zoom in and move the pushpin to a new location the map will zoom out to the original zoom level. Is there a way to keep it from doing that?
I have tried to set the zoomlevel (GoogleMapForASPNet1.GoogleMapObject.ZoomLevel) to different values in different places of the script
– load page area (doesnt seem to change the zoomlevel)
– in OnPushpinMoved

 

It seems that it still will go back to the original zoomlevel

Any suggestions how to fix this?

Thanks for a nice google map control

Hi,
I am facing the problem to draw Poly line on the GMap. i.e I am able to draw up to 15 Lan&Lat values, if above I am not able to draw line dynamically.
Here I am retrieving the Lag & Lat values dynamically from Sql-Server.
Even here I am mentioning the error which I am getting….

 

Microsoft JScript runtime error: Sys.Net.WebServiceFailedException: The server method ‘GetGoogleObject’ failed with the following error: System.InvalidOperationException– Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property.

Thanks & Regards,
Hanu

Hi all!
I need help.I am not familiar with Javascript and want to ask something about Polylines.Can i create a InfoHTML for a polyline,when it is clicked or mouseover to show some info?
Thanks

I just wanted to say that I enjoyed reviewing and using this control. I have successfully implemented it with minor changes. A previous post mentioned having to change the “GetLocalPath” function. However, it didn’t work so I changed it to the following which fixed it.

 

public static string GetLocalPath()
{
string[] s = System.Web.HttpContext.Current.Request.Url.AbsoluteUri.Split(new char[] { ‘/’ });
string PageName = s[s.Length – 1];
int PageNameLength = PageName.IndexOf(“?”);
if (PageNameLength != -1)
{
PageName = PageName.Substring(0, PageNameLength);
}
s = System.Web.HttpContext.Current.Request.MapPath(PageName).Split(new char[] { ‘//’ }); //NEW because ” is not valid char

string path = s[0] + “”; //places proper backslashes
for (int i = 1; i < s.Length – 1; i++)
{
path = path + s[i] + “”; // new
}
return path;

Do you do any custom development? I have a Google Maps project I would like to be completed.
Thanks,
Steve

Hi;
Thanks for the great control. I wonder if i can get geocodes of any point i click on the map.

Hi Shabdar. Great google map control but there is a runtime error if i use this control with the browsers(IE,FF).
I downloaded the newest Version from here: downloads/GoogleMapControl.zip

 

If i click one time with the right mouse button on the map, this runtime error appears:
line: 784
Error: ‘this.ff.width’ is Null or not an object

This is the line (main.js):
Uj.prototype.Ow=function(a){return new N(a.x+this.ff.width,a.y+this.ff.height)};

Thanks,

Hi there, looks to be a great control but I can’t seem to get your control to work.

 

if (hidEventName.Value == “PushpinMoved”)
{
//Set event name to blank string, so on next postback same event doesn’t fire again.
hidEventName.Value = “”;
OnPushpinMoved(hidEventValue.Value);

This line doesn’t seem to work, sine the hidEventName is in the contentTemplate, so it can’t be accessed, or am I doing something wrong?

Cheers, Sarkie.

thank you

hi.,
*I am having some problems in writing to databases… can u show me a sample test page where database connection is used
and the database design too..
*is it possible for me to convert a text file with lat and lang to a organized XML file.
thanks

Thank You very much for your great control,I want to say that it
is the greatest one as I ever seen before.you save my life,you are
the god.

H! Great article.
I have two questions.1-Can I use this without webservice?
and 2-I want a image from DBase along with text to b displayed in a bubble that comes when user click the pin.
For first question I tried to write methods in the code-behind file and using “PageMethods” I called them from javascript.Functions get called ,but with some script errors.
Can you comment on it please.

One More Problem
When I add more(50+) points on map it takes too long to get loaded.
What to do when we have thousands of loactions to be pointed on the map.

Thanks for a great control. In my part of the world (Kenya) we get some pretty lousy internet connections. When a connection fails partway the javascript fails at

 

if(GBrowserIsCompatible())

Now I can either move this into a try..catch block, or test that the function is instantiated first with

if(GBrowserIsCompatible)

I need to bubble this error up into an error event for the control that I can handle in the calling program.

The problem is that what I know about JavaScript is dangerous and I’d be very grateful for any suggestions you may have.

Regards Bob Morris

This thing is awsome!!! Thank you so much. The only thing I am missing is Street View. Anyway to do this?

First of all, great article. I have a question about Geocoding. I keep getting a ‘request timed out’ error when entering Seattle, WA in the GooglePoint address property. Its pretty much straight from the sample. Perhaps I’m doing something wrong. Any suggestions?

Hi, you made a great job… It’s very usefull control. But i’ve got a question, i try to get the ID of a point when i click on it to show it in a label…As you do with the pushpin moved. Is there a way to get back and handle the informations from the bubble???? Please answer me if you have any idea or anyone else got any idea…

 

Thank you.

If I want to display a point’s infoHTML by default, how would I do that? Whenever a point has some infoHTML, it should be displayed. How this can be done?

Thank you very much for this great web user control.
How do I plot routemap or polyline based on some langitude and longitude values in a looop.

 

Any one please advice or guide me to any URL…of doumentation please..

thanks

venky

Dear Shabdar,

 

Thanks for the great control….

I’ve got some queries…

How can I get the Latitude & Longitude of a point clicked on the map.

Thanks,
Yogesh J S

I was wondering if you have worked on the getBounds or adding the ability to get directions yet?

 

Charles

See my CreateMarker function. In this function I have defined a click event, which opens up a balloon. You need to add similar code for map click event. Somethink like this,

 

GEvent.addListener(map, ‘click’, function(overlay, latlng) {
var lat = latlng.lat();
var lon = latlng.lng();

Once you have lat/lon values, you can create marker based on these lat longs values

var point = new GLatLng(lat,lon);
map.addOverlay(new GMarker(point));

To save this new lat longs in database, you can define a webmethod and call it in javascript.

GService.SaveNewMarker(lat,lon);

Can you provide a sample code to add a puspin when clicked on the map. i cannot invoke the createmarker code onclick of map

i did it like this in my way , can you suggest a better way,

 

Untitled Page

function display()
{
GEvent.addListener(map, “click”, function(marker, latlng)
{
var inputForm3 = document.createElement(“form”);
inputForm3.setAttribute(“action”,””);
inputForm3.onsubmit = function() { storeMarker(latlng); return false;};
var lng = latlng.lng();
var lat = latlng.lat();
inputForm3.innerHTML = ”
+ ‘Add Transformer’
+ ‘Transformer Name:’
+ ”
+ ‘Transformer NO:’
+ ”
+ ”
+ ”
+ ”
+ ”;
map.openInfoWindow (latlng,inputForm3);
});
}

 

Back

 

Google map with draggable pushpins.

Drag any pushpin and see changed latitude and longitude value at bottom of page.

Thank you for reporting this. This was a bug. I have fixed it. You can download source code again.

Shabdar,

 

I see you already corrected it (I asked the same question on the codeproject site). I also found another solution.

I see you moved the RaiseEvent function out of the GoogleMapAPIWrapper.js and into the GoogleMapForASPNET.ascx.
To leave it in the .js file you can also do this:

Add script section after UpdatePanel:

var panelXXXYYY = ”;
var hidEventName = ”;
var hidEventValue = ”;

Change RaiseEvent function in.js file to :

function RaiseEvent(pEventName,pEventValue)
{
document.getElementById(hidEventName).value = pEventName;;
document.getElementById(hidEventValue).value = pEventValue;
if(document.getElementById(panelXXXYYY) != null)
{
__doPostBack(panelXXXYYY,”);
}
}

Or something like this of course.

Regards,

Geert Veenstra

Hi

 

I corrected my own question; For those that might like to use the G_PHYSICAL_MAP map type, enableDoubleClickZoom, and/or enableScrollWheelZoom, the code snippnet above needed to be moved from fGetGoogleObjectOptimized to the fGetGoogleObject method in the new GoogleMapAPIWrapper,js file.

Shabdar, you might like to consider adding this functionality to the next release.

Chris

Thanks,

 

I will include this in next release.

Thanks for this correction,

 

I will include this update in next release.

Hi Shabdar,

 

It seems to me that the call to GetLocalPath (and also GetHttpURL) is not really necessary.

I think this because in the IconImage set part you go through all this code, but at the end there is a line _icon = value; which makes all previous code unneeded ?

Or is all that code there just to make sure (check) that the bitmap really exists ?

Regards,

Geert Veenstra

Ok I answered part of my own question 🙂 I added a ‘Select’ tag inside the InfoHTML. When clicked, it fires a server-side event and passes the marker’s id. The server-side code records the selection and changes the marker icon color. BUT, the map does not redraw itself!

 

How do I direct the map to redraw itself?

The only work around I have found is to do a post-back –Response.Redirect(“default.aspx”)

Hi
Please see my reply =>
Thomas Olsen (Wednesday 11-Jun-08 01:58 AM)

 

Regards
Thomas Olsen.

I think most of the people know how to read an sql table and load values in variable. If not, there are plenty of examples on net.

 

I didn’t want to make my sample to tightly bind with SQL Database. That’s the reason I didn’t include it in my samples as well.

There’s an automated SQL geocoder out there already. While it isn’t open-source, I’m fairly certain that it is free. Link: http://sql.geocoder.jetkey.com/

I solved the problem by also adding the GoogleMapApiWrapper.js file to my project.

 

I have built Google Maps before inside plain HTMl but I am having problems making the transition to the ASP.NET version/implementation. Do you have any full examples of say how to implement a click to create a marker (I see the function in the included file) because I don’t know how to ‘wire’ it all together in this environment.

I am also interested in basic functionality like clicking a few points and creating a polygon / line from those clicked points for example.

Thanks in advance
James.

I figured this out and it does work on a Web Application Project. First do not use InlineScript = “true” as shown above. The GService is undefined error was being caused by the fact I was doing a url rewrite for the pages in the global.asax Application_BeginRequest which was causing the errors with GService.asmx.

 

By removing this for .asmx extentions everthing is working fine.

if (Request.Path.IndexOf(“.asmx”) == -1)
{
// do page rewrite function
}

Hope this may help someone out as it took me quite some time to figure it out.

Great control!!!

Thanks,
Dave

First you have to find the function RecenterAndZoom in the GoogleMapAPIWrapper.js file, then you have to comment the following lines:

 

//var iZoomLevel = map.getBoundsZoomLevel(bounds);
var point = bounds.getCenter();
// if(iZoomLevel>14)
// {
// iZoomLevel = 14;
// }
if(cnt<=0)
{
point = new GLatLng(result.CenterPoint.Latitude,result.CenterPoint.Longitude);
// iZoomLevel =result.ZoomLevel;
}
// map.setZoom(iZoomLevel);
map.setCenter(point);

also check this in the function IgnoreZeroLatLongs at the beginning of the same file

// var iZoomLevel = map.getBoundsZoomLevel(bounds);
var point = bounds.getCenter();

// map.setZoom(iZoomLevel);
map.setCenter(point);

then try it

I am having the same problem. Was anyone able to resolve this?

Hi
We do Google Map project, please provide me with your project details, we’ll send you an offer.

 

Please contact me at “tol (a-NoSpam) promobil.dk”

Regards
Thomas Olsen.

I met this error,too.Admin can explain for us? 🙁
Thanks!

Hi,
I have same problem, I discover that situation occurs when no markers on the map.

No…

See my CreateMarker function. In this function I have defined a click event, which opens up a balloon. You need to add similar code for map click event. Somethink like this,

 

GEvent.addListener(map, ‘click’, function(overlay, latlng) {
var lat = latlng.lat();
var lon = latlng.lng();

Once you have lat/lon values, you can create marker based on these lat longs values

var point = new GLatLng(lat,lon);
map.addOverlay(new GMarker(point));

To save this new lat longs in database, you can define a webmethod and call it in javascript.

GService.SaveNewMarker(lat,lon);

Can you provide a sample code to add a puspin when clicked on the map. i cannot invoke the createmarker code onclick of map

i did it like this in my way , can you suggest a better way,

 

Untitled Page

function display()
{
GEvent.addListener(map, “click”, function(marker, latlng)
{
var inputForm3 = document.createElement(“form”);
inputForm3.setAttribute(“action”,””);
inputForm3.onsubmit = function() { storeMarker(latlng); return false;};
var lng = latlng.lng();
var lat = latlng.lat();
inputForm3.innerHTML = ”
+ ‘Add Transformer’
+ ‘Transformer Name:’
+ ”
+ ‘Transformer NO:’
+ ”
+ ”
+ ”
+ ”
+ ”;
map.openInfoWindow (latlng,inputForm3);
});
}

 

Back

 

Google map with draggable pushpins.

Drag any pushpin and see changed latitude and longitude value at bottom of page.

Can you provide a sample code to add a puspin when clicked on the map. i cannot invoke the createmarker code onclick of map

i did it like this in my way , can you suggest a better way,

 

Untitled Page

function display()
{
GEvent.addListener(map, “click”, function(marker, latlng)
{
var inputForm3 = document.createElement(“form”);
inputForm3.setAttribute(“action”,””);
inputForm3.onsubmit = function() { storeMarker(latlng); return false;};
var lng = latlng.lng();
var lat = latlng.lat();
inputForm3.innerHTML = ”
+ ‘Add Transformer’
+ ‘Transformer Name:’
+ ”
+ ‘Transformer NO:’
+ ”
+ ”
+ ”
+ ”
+ ”;
map.openInfoWindow (latlng,inputForm3);
});
}

 

Back

 

Google map with draggable pushpins.

Drag any pushpin and see changed latitude and longitude value at bottom of page.

i did it like this in my way , can you suggest a better way,

 

Untitled Page

function display()
{
GEvent.addListener(map, “click”, function(marker, latlng)
{
var inputForm3 = document.createElement(“form”);
inputForm3.setAttribute(“action”,””);
inputForm3.onsubmit = function() { storeMarker(latlng); return false;};
var lng = latlng.lng();
var lat = latlng.lat();
inputForm3.innerHTML = ”
+ ‘Add Transformer’
+ ‘Transformer Name:’
+ ”
+ ‘Transformer NO:’
+ ”
+ ”
+ ”
+ ”
+ ”;
map.openInfoWindow (latlng,inputForm3);
});
}

 

Back

 

Google map with draggable pushpins.

Drag any pushpin and see changed latitude and longitude value at bottom of page.

Thank you for reporting this. This was a bug. I have fixed it. You can download source code again.

Shabdar,

 

I see you already corrected it (I asked the same question on the codeproject site). I also found another solution.

I see you moved the RaiseEvent function out of the GoogleMapAPIWrapper.js and into the GoogleMapForASPNET.ascx.
To leave it in the .js file you can also do this:

Add script section after UpdatePanel:

var panelXXXYYY = ”;
var hidEventName = ”;
var hidEventValue = ”;

Change RaiseEvent function in.js file to :

function RaiseEvent(pEventName,pEventValue)
{
document.getElementById(hidEventName).value = pEventName;;
document.getElementById(hidEventValue).value = pEventValue;
if(document.getElementById(panelXXXYYY) != null)
{
__doPostBack(panelXXXYYY,”);
}
}

Or something like this of course.

Regards,

Geert Veenstra

Shabdar,

 

I see you already corrected it (I asked the same question on the codeproject site). I also found another solution.

I see you moved the RaiseEvent function out of the GoogleMapAPIWrapper.js and into the GoogleMapForASPNET.ascx.
To leave it in the .js file you can also do this:

Add script section after UpdatePanel:

var panelXXXYYY = ”;
var hidEventName = ”;
var hidEventValue = ”;

Change RaiseEvent function in.js file to :

function RaiseEvent(pEventName,pEventValue)
{
document.getElementById(hidEventName).value = pEventName;;
document.getElementById(hidEventValue).value = pEventValue;
if(document.getElementById(panelXXXYYY) != null)
{
__doPostBack(panelXXXYYY,”);
}
}

Or something like this of course.

Regards,

Geert Veenstra

Hi

 

I corrected my own question; For those that might like to use the G_PHYSICAL_MAP map type, enableDoubleClickZoom, and/or enableScrollWheelZoom, the code snippnet above needed to be moved from fGetGoogleObjectOptimized to the fGetGoogleObject method in the new GoogleMapAPIWrapper,js file.

Shabdar, you might like to consider adding this functionality to the next release.

Chris

Thanks,

 

I will include this in next release.

Thanks,

 

I will include this in next release.

Thanks for this correction,

 

I will include this update in next release.

Hi Shabdar,

 

It seems to me that the call to GetLocalPath (and also GetHttpURL) is not really necessary.

I think this because in the IconImage set part you go through all this code, but at the end there is a line _icon = value; which makes all previous code unneeded ?

Or is all that code there just to make sure (check) that the bitmap really exists ?

Regards,

Geert Veenstra

Hi Shabdar,

 

It seems to me that the call to GetLocalPath (and also GetHttpURL) is not really necessary.

I think this because in the IconImage set part you go through all this code, but at the end there is a line _icon = value; which makes all previous code unneeded ?

Or is all that code there just to make sure (check) that the bitmap really exists ?

Regards,

Geert Veenstra

Ok I answered part of my own question 🙂 I added a ‘Select’ tag inside the InfoHTML. When clicked, it fires a server-side event and passes the marker’s id. The server-side code records the selection and changes the marker icon color. BUT, the map does not redraw itself!

 

How do I direct the map to redraw itself?

The only work around I have found is to do a post-back –Response.Redirect(“default.aspx”)

Hi
Please see my reply =>
Thomas Olsen (Wednesday 11-Jun-08 01:58 AM)

 

Regards
Thomas Olsen.

I think most of the people know how to read an sql table and load values in variable. If not, there are plenty of examples on net.

 

I didn’t want to make my sample to tightly bind with SQL Database. That’s the reason I didn’t include it in my samples as well.

There’s an automated SQL geocoder out there already. While it isn’t open-source, I’m fairly certain that it is free. Link: http://sql.geocoder.jetkey.com/

I solved the problem by also adding the GoogleMapApiWrapper.js file to my project.

 

I have built Google Maps before inside plain HTMl but I am having problems making the transition to the ASP.NET version/implementation. Do you have any full examples of say how to implement a click to create a marker (I see the function in the included file) because I don’t know how to ‘wire’ it all together in this environment.

I am also interested in basic functionality like clicking a few points and creating a polygon / line from those clicked points for example.

Thanks in advance
James.

I figured this out and it does work on a Web Application Project. First do not use InlineScript = “true” as shown above. The GService is undefined error was being caused by the fact I was doing a url rewrite for the pages in the global.asax Application_BeginRequest which was causing the errors with GService.asmx.

 

By removing this for .asmx extentions everthing is working fine.

if (Request.Path.IndexOf(“.asmx”) == -1)
{
// do page rewrite function
}

Hope this may help someone out as it took me quite some time to figure it out.

Great control!!!

Thanks,
Dave

First you have to find the function RecenterAndZoom in the GoogleMapAPIWrapper.js file, then you have to comment the following lines:

 

//var iZoomLevel = map.getBoundsZoomLevel(bounds);
var point = bounds.getCenter();
// if(iZoomLevel>14)
// {
// iZoomLevel = 14;
// }
if(cnt<=0)
{
point = new GLatLng(result.CenterPoint.Latitude,result.CenterPoint.Longitude);
// iZoomLevel =result.ZoomLevel;
}
// map.setZoom(iZoomLevel);
map.setCenter(point);

also check this in the function IgnoreZeroLatLongs at the beginning of the same file

// var iZoomLevel = map.getBoundsZoomLevel(bounds);
var point = bounds.getCenter();

// map.setZoom(iZoomLevel);
map.setCenter(point);

then try it

I am having the same problem. Was anyone able to resolve this?

Hi
We do Google Map project, please provide me with your project details, we’ll send you an offer.

 

Please contact me at “tol (a-NoSpam) promobil.dk”

Regards
Thomas Olsen.

I met this error,too.Admin can explain for us? 🙁
Thanks!

Hi,
I have same problem, I discover that situation occurs when no markers on the map.

No…