# WPF performance with shapefile **URL:** \ **Category:** WPF\ **Created:** [June 24, 2013, 5:48pm UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438 "2013-06-24T17:48:30Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Murray](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/m/6f9a4e/32.png) [@Murray](https://community.thinkgeo.com/u/Murray)\ **Post date:** [June 24, 2013, 5:48pm UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/1 "2013-06-24T17:48:30Z")
Hi  I am getting very poor performance displaying a shapefile on top of a worldmaplayer. It takes many seconds to refresh when zooming and moving around.  Basically it is unusable. I am hoping I am doing something wrong. The code I am using is below. The file is too large to post on this forum. But you can download it here [geodownloads.dmp.wa.gov.au/d…ntreDb.asp](http://geodownloads.dmp.wa.gov.au/datacentre/datacentreDb.asp) Under Statewide Spatial Datasets - Mineral Information - Tenements - Current ( Live and Pending) - Download - Esri Shapefile Hopefully you can see the problem as this is a real issue for us regards Murray > `var layer = ``new` `ShapeFileFeatureLayer(file);` > `        ``layer.RequireIndex = ``false``;` > `        ``layer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;` > `        ``layer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle =` > `            ``AreaStyles.CreateSimpleAreaStyle(GeoColor.SimpleColors.Transparent,` > `                                             ``GeoColor.FromArgb(100, GeoColor.SimpleColors.Green));` >   > `        ``// Convert to the current map projection` > `        ``var proj = ``new` `Proj4Projection` > `            ``{` > `                ``InternalProjectionParametersString = Proj4Projection.GetEpsgParametersString(4326),` > `                ``ExternalProjectionParametersString = Proj4Projection.GetEpsgParametersString(srid)` > `            ``};` > `        ``layer.FeatureSource.Projection = proj;` > `        ``proj.Open();` > `        ``_staticOverlay.Layers.Add(file,layer);` > > `` ---
**Author:** ![Summer1](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/s/c89c15/32.png) [@Summer1](https://community.thinkgeo.com/u/Summer1)\ **Post date:** [June 25, 2013, 3:36am UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/2 "2013-06-25T03:36:23Z")
Hi Murray,       Thanks for your post and sorry for the inconvenience, we tried to download the data from the link, but it couldn’t be open on our side, would you please send it to [forumsupport@thinkgeo.com](mailto:forumsupport@thinkgeo.com)? Once we get your data we will debug it immediately.      Waiting for your further information.      Summer ---
**Author:** ![Murray](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/m/6f9a4e/32.png) [@Murray](https://community.thinkgeo.com/u/Murray)\ **Post date:** [June 26, 2013, 12:51am UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/3 "2013-06-26T00:51:11Z")
Hi It has been emailed as requested ---
**Author:** ![Murray](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/m/6f9a4e/32.png) [@Murray](https://community.thinkgeo.com/u/Murray)\ **Post date:** [June 26, 2013, 6:27pm UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/4 "2013-06-26T18:27:34Z")
This doesn’t seem to be restricted to shapefiles. I am having the same poor redraw on JP2 files as well. Please let me know if you want me to send through one of those as well ---
**Author:** ![Summer1](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/s/c89c15/32.png) [@Summer1](https://community.thinkgeo.com/u/Summer1)\ **Post date:** [June 27, 2013, 5:28am UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/5 "2013-06-27T05:28:57Z")
Hi Murray, Thanks for your data, we have found two ways to speed it up, The first is to use build ShapeFileFeatureLayer.BuildIndexFile(shpPath, BuildIndexMode.DoNotRebuild) The Second is to use tilecache, attahced is the sample would you please try it? if you have any more question , please feel free to let us know. Best Regards Summer [008\_007\_006\_005\_004\_003\_002\_001\_Sample.zip](https://community.thinkgeo.com/uploads/default/original/2X/d/db6eb268c5acfe80683eba1e357a16c0044db80d.zip) (10.4 KB) ---
**Author:** ![Murray](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/m/6f9a4e/32.png) [@Murray](https://community.thinkgeo.com/u/Murray)\ **Post date:** [June 27, 2013, 10:41pm UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/6 "2013-06-27T22:41:05Z")
Ok thanks that seems to have improved performance.      I will do more testing over a range of files, but it seems that has fixed it ---
**Author:** ![Tomas\_P](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/9dc877/32.png) [@Tomas\_P](https://community.thinkgeo.com/u/Tomas_P)\ **Post date:** [June 28, 2013, 2:29am UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/7 "2013-06-28T02:29:39Z")
Hi there:      I have the same issues as Murray was posting, but I already had the TileCache and an index file for my shapefiles.   By the way: what does the `BuildIndexMode.DoNotRebuild` in `ShapeFileFeatureLayer.BuildIndexFile(shpPath, BuildIndexMode.DoNotRebuild);` ?      Any other idea about how to speedup this?         Thanks! ---
**Author:** ![Summer1](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/s/c89c15/32.png) [@Summer1](https://community.thinkgeo.com/u/Summer1)\ **Post date:** [July 1, 2013, 12:59am UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/8 "2013-07-01T00:59:22Z")
Hi Murray and Tomas,      Great to hear it helped Murray’s case and if you have any more question, please feel free to let us know.      Would Tomas please provide us your data for a further test, you could upload it here, or send it to [forumsupport@thinkgeo.com](mailto:forumsupport@thinkgeo.com) if it is confidential.Once we get your data, we will debug it immediately.      Best Regards      Summer  ---
**Author:** ![Tomas\_P](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/9dc877/32.png) [@Tomas\_P](https://community.thinkgeo.com/u/Tomas_P)\ **Post date:** [July 1, 2013, 6:48am UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/9 "2013-07-01T06:48:34Z")
Hi Summer:      I will send you as soon as possible a sample code with this features.      Thank you for your answers.      Tomás ---
**Author:** ![Summer1](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/s/c89c15/32.png) [@Summer1](https://community.thinkgeo.com/u/Summer1)\ **Post date:** [July 2, 2013, 12:15am UTC](https://community.thinkgeo.com/t/wpf-performance-with-shapefile/3438/10 "2013-07-02T00:15:29Z")
Hi Tomas,      Thanks for the input, and we will be waiting for sample, and if possible would you please send the data together? we will make a futher investigation for it.      Best Regards      Summer