# ThinkGeo UI for Web **URL:** https://community.thinkgeo.com/c/thinkgeo-ui-for-web/34.md?page=2 [Latest](https://community.thinkgeo.com/latest.md) · [Categories](https://community.thinkgeo.com/categories.md) **Page:** 3 --- ## [Projection Issue regarding points](https://community.thinkgeo.com/t/projection-issue-regarding-points/9810)
**Author:** [@Mouni\_M](https://community.thinkgeo.com/u/Mouni_M)\ **Replies:** 3\ **Last updated:** [May 26, 2020, 2:22pm UTC](https://community.thinkgeo.com/t/projection-issue-regarding-points/9810 "2020-05-26T14:22:18Z")
Hi, I have one point layer.And i render that layer using below projection as given in Sample. It is located correctly.Below are points and projection. Latitude: 17.89066966 Longitude: 74.74236948 Proj4Projection pro… --- ## [Showing multiple images to poins in same layer](https://community.thinkgeo.com/t/showing-multiple-images-to-poins-in-same-layer/9807)
**Author:** [@Mouni\_M](https://community.thinkgeo.com/u/Mouni_M)\ **Replies:** 0\ **Last updated:** [May 18, 2020, 8:27am UTC](https://community.thinkgeo.com/t/showing-multiple-images-to-poins-in-same-layer/9807 "2020-05-18T08:27:44Z")
Hi, I want to show some points with dot as pointstyle and some points with different images in same InMemoryFeatureLayer.I have tried but i’m getting image set to all points. Regards, Mouni --- ## [About Proj4Projection](https://community.thinkgeo.com/t/about-proj4projection/9773)
**Author:** [@Min\_Wang](https://community.thinkgeo.com/u/Min_Wang)\ **Replies:** 3\ **Last updated:** [April 22, 2020, 2:46pm UTC](https://community.thinkgeo.com/t/about-proj4projection/9773 "2020-04-22T14:46:15Z")
Hello, Team Just wondering if there is Proj4Projection in thinkgeo.UI.blazor. How can I use Proj4Projection in a thinkgeo.UI.blazor project? It seems it belongs to ThinkGeo.MapSuite.Shapes namespace. But ThinkGeo.Ma… --- ## [Context\_lost\_webgl](https://community.thinkgeo.com/t/context-lost-webgl/9747)
**Author:** [@Brandon\_Cook](https://community.thinkgeo.com/u/Brandon_Cook)\ **Replies:** 15\ **Last updated:** [April 3, 2020, 1:19pm UTC](https://community.thinkgeo.com/t/context-lost-webgl/9747 "2020-04-03T13:19:05Z")
I have been running into an error when zooming the map - particularly, when zooming in with the map maximized on a 4K screen using the shift+click draw box to zoom into a city from pretty much the world extent. The map … --- ## [Measure Line Distance Does Not End](https://community.thinkgeo.com/t/measure-line-distance-does-not-end/9764)
**Author:** [@Brandon\_Cook](https://community.thinkgeo.com/u/Brandon_Cook)\ **Replies:** 4\ **Last updated:** [April 2, 2020, 6:30pm UTC](https://community.thinkgeo.com/t/measure-line-distance-does-not-end/9764 "2020-04-02T18:30:35Z")
ThinkGeo Team, It looks like I have found another issue. If I try to use the MeasureTool in the code sample that I provided you in my other issue, area measure seems to work fine (though it does not show the area in th… --- ## [Map does not redraw all layers](https://community.thinkgeo.com/t/map-does-not-redraw-all-layers/9756)
**Author:** [@Brandon\_Cook](https://community.thinkgeo.com/u/Brandon_Cook)\ **Replies:** 11\ **Last updated:** [April 1, 2020, 2:06pm UTC](https://community.thinkgeo.com/t/map-does-not-redraw-all-layers/9756 "2020-04-01T14:06:29Z")
Hello TG Folks, I am having an issue with the map failing to draw features and overlays. Some of the time, it draws as expected. Some of the time, the wheels fall of the bus so to speak. Features that were previousl… --- ## [MapView - On Click on Layer and show additional data](https://community.thinkgeo.com/t/mapview-on-click-on-layer-and-show-additional-data/9749)
**Author:** [@Poul](https://community.thinkgeo.com/u/Poul)\ **Replies:** 1\ **Last updated:** [March 9, 2020, 6:10am UTC](https://community.thinkgeo.com/t/mapview-on-click-on-layer-and-show-additional-data/9749 "2020-03-09T06:10:40Z")
The picture presents road sections using GeoCollection . I have a question how to add function that after clicking on specyfic layer show additional parameters from database about clicked road section. Is it possible… --- ## [Need help with coordinates OGC Services - Europe](https://community.thinkgeo.com/t/need-help-with-coordinates-ogc-services-europe/9748)
**Author:** [@Poul](https://community.thinkgeo.com/u/Poul)\ **Replies:** 4\ **Last updated:** [March 9, 2020, 4:54am UTC](https://community.thinkgeo.com/t/need-help-with-coordinates-ogc-services-europe/9748 "2020-03-09T04:54:37Z")
Hi, According to the coordinates, Mszczonowska street is at 52.132839559508824, 20.891170983827966. (Mszczonowska, 05-090 Janki, Poland Latitude: 52.13284 | Longitude: 20.891171), but I can’t get this location by ente… --- ## [Convert map extent to pdf](https://community.thinkgeo.com/t/convert-map-extent-to-pdf/9740)
**Author:** [@Mouni\_M](https://community.thinkgeo.com/u/Mouni_M)\ **Replies:** 1\ **Last updated:** [February 28, 2020, 7:23am UTC](https://community.thinkgeo.com/t/convert-map-extent-to-pdf/9740 "2020-02-28T07:23:23Z")
Hi, I want to print my map extent to pdf.For that i used this method: private void PrintMapWithPdfCanvas() { PdfDocument document = new PdfDocument(); PdfPage page = document.AddPage(); PdfGeoCanvas pdfGeoCanvas = … --- ## [Regarding shape file](https://community.thinkgeo.com/t/regarding-shape-file/9734)
**Author:** [@Mouni\_M](https://community.thinkgeo.com/u/Mouni_M)\ **Replies:** 13\ **Last updated:** [February 19, 2020, 10:09am UTC](https://community.thinkgeo.com/t/regarding-shape-file/9734 "2020-02-19T10:09:55Z")
Hi, I want to show some portion of shape file depending on condition(village).I have used stop certain features from drawing form web edition sample.It partially succeeded.But its only showing boundary of selected villa… --- ## [Connect to WMS maps for web app](https://community.thinkgeo.com/t/connect-to-wms-maps-for-web-app/9717)
**Author:** [@Poul](https://community.thinkgeo.com/u/Poul)\ **Replies:** 4\ **Last updated:** [February 17, 2020, 8:54am UTC](https://community.thinkgeo.com/t/connect-to-wms-maps-for-web-app/9717 "2020-02-17T08:54:16Z")
Is it possible to connect to WMS compliant maps as part of using UI controls. I would like to use UI controls and wms maps from different location e.g. http://mapy.geoportal.gov.pl/wss/service/img/guest/ORTO/MapServer/… --- ## [Upgrade from version 9 to?](https://community.thinkgeo.com/t/upgrade-from-version-9-to/9733)
**Author:** [@Jay](https://community.thinkgeo.com/u/Jay)\ **Replies:** 5\ **Last updated:** [February 14, 2020, 11:26am UTC](https://community.thinkgeo.com/t/upgrade-from-version-9-to/9733 "2020-02-14T11:26:52Z")
We are finally looking to upgrade from version 9. We are using .Net Framework 4.8. What version can I upgrade to? I see ThinkGeo UI 12 is out but it says it is for .Net Core 3.0 and it isn’t clear to me that it works wit… --- ## [Valustyle to InmemoryFeatureLayer](https://community.thinkgeo.com/t/valustyle-to-inmemoryfeaturelayer/9728)
**Author:** [@Mouni\_M](https://community.thinkgeo.com/u/Mouni_M)\ **Replies:** 8\ **Last updated:** [February 5, 2020, 7:40am UTC](https://community.thinkgeo.com/t/valustyle-to-inmemoryfeaturelayer/9728 "2020-02-05T07:40:23Z")
Hi Ethan, as per your recent solution,it did not work. I am provoding my code here… LayerOverlay staticOverlay = (LayerOverlay)Map1.CustomOverlays\[“StaticOverLay”\]; ShapeFileFeatureLayer shapeFileLayer = (ShapeFileFe… --- ## [SqliteFeatureLayer Feature Id is not contained by this SqliteParameterCollection](https://community.thinkgeo.com/t/sqlitefeaturelayer-feature-id-is-not-contained-by-this-sqliteparametercollection/9706)
**Author:** [@Brandon\_Cook](https://community.thinkgeo.com/u/Brandon_Cook)\ **Replies:** 6\ **Last updated:** [January 30, 2020, 10:05am UTC](https://community.thinkgeo.com/t/sqlitefeaturelayer-feature-id-is-not-contained-by-this-sqliteparametercollection/9706 "2020-01-30T10:05:28Z")
Hello all, I keep getting an odd exception when I try to add features to a SqliteFeatureLayer. This code worked in previous versions, but when I converted to .NetCore and Blazor, I keep getting this error: 'A Sqlite… --- ## [LayerOverlay Draw to Bitmap](https://community.thinkgeo.com/t/layeroverlay-draw-to-bitmap/9699)
**Author:** [@Brandon\_Cook](https://community.thinkgeo.com/u/Brandon_Cook)\ **Replies:** 9\ **Last updated:** [January 14, 2020, 6:22am UTC](https://community.thinkgeo.com/t/layeroverlay-draw-to-bitmap/9699 "2020-01-14T06:22:34Z")
Scenario: I have a local RasterTileCache that I am displaying using a LayerOverlay with IsCacheOnly set to true and the TileCache set appropriately. There are no layers. The user will not have access to the TileCache … --- ## [Shapefile displaying offset over Google and Bing maps](https://community.thinkgeo.com/t/shapefile-displaying-offset-over-google-and-bing-maps/9689)
**Author:** [@Neil3](https://community.thinkgeo.com/u/Neil3)\ **Replies:** 4\ **Last updated:** [January 9, 2020, 6:08am UTC](https://community.thinkgeo.com/t/shapefile-displaying-offset-over-google-and-bing-maps/9689 "2020-01-09T06:08:46Z")
Hi ThinkGeo, We are having issues with a specific projections in ThinkGeo WebForms displaying offset. The projection is EPSG:32026 - NAD27 / Oregon North. The curious thing about this issues is we have many other shapef… --- ## [Support for Vector Tile layers](https://community.thinkgeo.com/t/support-for-vector-tile-layers/9669)
**Author:** [@Luke\_Orpin](https://community.thinkgeo.com/u/Luke_Orpin)\ **Replies:** 6\ **Last updated:** [December 17, 2019, 6:49am UTC](https://community.thinkgeo.com/t/support-for-vector-tile-layers/9669 "2019-12-17T06:49:18Z")
I am developing an application where we need to retrieve Vector Tiles from an API source and display the tiles as a layer on our ThinkGeo map. The Vector Tiles returned from the API are provided as raw data in a Protocol… --- ## [Version 10 Unlimited License Install](https://community.thinkgeo.com/t/version-10-unlimited-license-install/9679)
**Author:** [@Stephen1](https://community.thinkgeo.com/u/Stephen1)\ **Replies:** 1\ **Last updated:** [December 11, 2019, 3:19am UTC](https://community.thinkgeo.com/t/version-10-unlimited-license-install/9679 "2019-12-11T03:19:44Z")
We currently have a couple of MVC applications built on version 8 of TG and deployed out to production on many many servers. We purchased the unlimited deployment license option since we have so many servers across many… --- ## [Printing to PDF](https://community.thinkgeo.com/t/printing-to-pdf/9668)
**Author:** [@Hartwig](https://community.thinkgeo.com/u/Hartwig)\ **Replies:** 1\ **Last updated:** [December 6, 2019, 9:47am UTC](https://community.thinkgeo.com/t/printing-to-pdf/9668 "2019-12-06T09:47:02Z")
Hi, we need a snippet for Printing to PDF using different dpi (100-300) and also rotating the map. Our main problem is to use different coordinate systems and different sources (PostGIS:25832, Raster: 4326, OSM etc.) R… --- ## [Webgl support or reliance](https://community.thinkgeo.com/t/webgl-support-or-reliance/9660)
**Author:** [@Jeff\_Griggs](https://community.thinkgeo.com/u/Jeff_Griggs)\ **Replies:** 1\ **Last updated:** [November 22, 2019, 3:24am UTC](https://community.thinkgeo.com/t/webgl-support-or-reliance/9660 "2019-11-22T03:24:50Z")
Does anyone know if the Map Component relies on Webgl? Thanks --- ## [MaxExtent not honored on zoom](https://community.thinkgeo.com/t/maxextent-not-honored-on-zoom/9636)
**Author:** [@Jeff\_Griggs](https://community.thinkgeo.com/u/Jeff_Griggs)\ **Replies:** 2\ **Last updated:** [October 24, 2019, 2:31am UTC](https://community.thinkgeo.com/t/maxextent-not-honored-on-zoom/9636 "2019-10-24T02:31:30Z")
There may be a bug in your MapView.MaxExtent property. It honors the bounding box on pan, but not on zoom. Is this expected behavior? --- ## [Ready to dive into ThinkGeo UI for Blazor?](https://community.thinkgeo.com/t/ready-to-dive-into-thinkgeo-ui-for-blazor/9624)
**Author:** [@ThinkGeo](https://community.thinkgeo.com/u/ThinkGeo)\ **Replies:** 0\ **Last updated:** [October 10, 2019, 9:15pm UTC](https://community.thinkgeo.com/t/ready-to-dive-into-thinkgeo-ui-for-blazor/9624 "2019-10-10T21:15:37Z")
Want to know how easily you can create a map with ThinkGeo UI’s new Blazor component? Our new how-to video series offers a look at how to add a map to your Blazor web application in just a few lines of code. Part 1 of … --- ## [The ThinkGeo Blazor map component](https://community.thinkgeo.com/t/the-thinkgeo-blazor-map-component/9625)
**Author:** [@ThinkGeo](https://community.thinkgeo.com/u/ThinkGeo)\ **Replies:** 0\ **Last updated:** [October 10, 2019, 9:39pm UTC](https://community.thinkgeo.com/t/the-thinkgeo-blazor-map-component/9625 "2019-10-10T21:39:44Z")
Greetings WebForms developers, If you’ve been following the buzz about Microsoft’s new Blazor SPA framework for the web, you might be interested to know that we now offer a Blazor map component in our latest version of … --- ## [Custom ContextMenu only works on features within the initial loading of the map](https://community.thinkgeo.com/t/custom-contextmenu-only-works-on-features-within-the-initial-loading-of-the-map/9567)
**Author:** [@Neil3](https://community.thinkgeo.com/u/Neil3)\ **Replies:** 2\ **Last updated:** [August 2, 2019, 9:00am UTC](https://community.thinkgeo.com/t/custom-contextmenu-only-works-on-features-within-the-initial-loading-of-the-map/9567 "2019-08-02T09:00:14Z")
Hi Thinkgeo Community, We are currently having an issue with our context menu on the Firefox browser and similar issues on other browsers. We are not using the context menu supplied through ThinkGeo but are currently … --- ## [Error when setting the Text property on a Marker](https://community.thinkgeo.com/t/error-when-setting-the-text-property-on-a-marker/9555)
**Author:** [@Jason\_Giles](https://community.thinkgeo.com/u/Jason_Giles)\ **Replies:** 1\ **Last updated:** [July 17, 2019, 4:53am UTC](https://community.thinkgeo.com/t/error-when-setting-the-text-property-on-a-marker/9555 "2019-07-17T04:53:21Z")
I get the following error when assigning the Text property of a Marker: "Object reference not set to an instance of an object.: at ThinkGeo.MapSuite.Mvc.Map.xVA=(Bitmap bitmap, PlatformGeoCanvas geoCanvas, Collection… --- ## [MAP IGN integrated to MAP SUITE](https://community.thinkgeo.com/t/map-ign-integrated-to-map-suite/5759)
**Author:** [@larue](https://community.thinkgeo.com/u/larue)\ **Replies:** 11\ **Last updated:** [July 12, 2019, 6:03am UTC](https://community.thinkgeo.com/t/map-ign-integrated-to-map-suite/5759 "2019-07-12T06:03:15Z")
Hi, i would like to integrate new overlay in map suite. In this case my new overlay is the IGN map (geoportail.fr/visu2D.do?ter=metropole). I have try to add a new overlay : Overlay ign; ign.RegisterJa… --- ## [To display .png or jpeg image](https://community.thinkgeo.com/t/to-display-png-or-jpeg-image/9538)
**Author:** [@Mouni\_M](https://community.thinkgeo.com/u/Mouni_M)\ **Replies:** 16\ **Last updated:** [July 10, 2019, 6:55am UTC](https://community.thinkgeo.com/t/to-display-png-or-jpeg-image/9538 "2019-07-10T06:55:55Z")
Hi, I want to plot points on map having image of type .png or .jpg or .tif as background. as given in web edition i tried but at a time i am able to view only image or points.. i want both points and image to disp… --- ## [Client side error when zooming in or out on Chrome](https://community.thinkgeo.com/t/client-side-error-when-zooming-in-or-out-on-chrome/9487)
**Author:** [@Neil3](https://community.thinkgeo.com/u/Neil3)\ **Replies:** 1\ **Last updated:** [March 29, 2019, 10:05am UTC](https://community.thinkgeo.com/t/client-side-error-when-zooming-in-or-out-on-chrome/9487 "2019-03-29T10:05:57Z")
Hi Thinkgeo and community, We've noticed within the past few months and following some Chrome updates that we have been getting consistent zooming in and zooming out client side errors. The client side error is "\[Inte… --- ## [Need guidance about creation and implementation of cache tiles](https://community.thinkgeo.com/t/need-guidance-about-creation-and-implementation-of-cache-tiles/9478)
**Author:** [@M\_Saeed\_Chamman](https://community.thinkgeo.com/u/M_Saeed_Chamman)\ **Replies:** 1\ **Last updated:** [March 19, 2019, 5:00am UTC](https://community.thinkgeo.com/t/need-guidance-about-creation-and-implementation-of-cache-tiles/9478 "2019-03-19T05:00:51Z")
can you please guide me how to create and use cache tiles in mvc because i have seen the given example of win forms but i'm unable to understand that how can i use it in mvc or how does it work. --- ## [OnExtentChanged in client side](https://community.thinkgeo.com/t/onextentchanged-in-client-side/9308)
**Author:** [@riyas](https://community.thinkgeo.com/u/riyas)\ **Replies:** 1\ **Last updated:** [October 16, 2018, 7:59am UTC](https://community.thinkgeo.com/t/onextentchanged-in-client-side/9308 "2018-10-16T07:59:32Z")
Hi, Is it possible to handle OnExtentChanged event in client side. If it is possible, please give me code for handle it. Code: OnExtentChanged="wfMap\_ExtentChanged" Thanks, Riyaz [Previous page](https://community.thinkgeo.com/c/thinkgeo-ui-for-web/34.md?page=1) [Next page](https://community.thinkgeo.com/c/thinkgeo-ui-for-web/34.md?page=3)