Read a shapefile and display its metadata.
Use case
You can display information about the shapefile your user is viewing, like tags, credits, and summary.
How to use the sample
The shapefile's metadata will be displayed when you open the sample.
How it works
- Call
ShapefileFeatureTable.OpenAsync("path_to_shapefile")
to create theShapefileFeatureTable
. - Get the
ShapefileInfo
from the feature table'sInfo
property. - Get the image from
fileInfo.Thumbnail
and display it. - Display the
Summary
,Credits
, andTags
properties from the shapefile info.
Relevant API
- ShapefileFeatureTable
- ShapefileFeatureTable.Info
- ShapefileFeatureTable.OpenAsync
- ShapefileInfo
- ShapefileInfo.Credits
- ShapefileInfo.Summary
- ShapefileInfo.Tags
- ShapefileInfo.Thumbnail
Offline data
Aurora Colorado Shapefiles is available as an item hosted on ArcGIS Online].
About the data
This sample uses a shapefile showing bike trails in Aurora, CO. The Aurora Colorado Shapefiles are available as an item on ArcGIS Online.
Tags
credits, description, metadata, package, shape file, shapefile, summary, symbology, tags, visualization
Sample Code
// Copyright 2017 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
// language governing permissions and limitations under the License.
using ArcGIS.Samples.Managers;
using Esri.ArcGISRuntime.Data;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI;
using System;
using System.Threading.Tasks;
using System.Windows;
namespace ArcGIS.WPF.Samples.ReadShapefileMetadata
{
[ArcGIS.Samples.Shared.Attributes.Sample(
name: "Read shapefile metadata",
category: "Data",
description: "Read a shapefile and display its metadata.",
instructions: "The shapefile's metadata will be displayed when you open the sample.",
tags: new[] { "credits", "description", "metadata", "package", "shape file", "shapefile", "summary", "symbology", "tags", "visualization" })]
[ArcGIS.Samples.Shared.Attributes.OfflineData("d98b3e5293834c5f852f13c569930caa")]
public partial class ReadShapefileMetadata
{
public ReadShapefileMetadata()
{
InitializeComponent();
// Open a shapefile stored locally and add it to the map as a feature layer
_ = Initialize();
}
private async Task Initialize()
{
// Create a new map to display in the map view with a streets basemap
Map streetMap = new Map(BasemapStyle.ArcGISStreets);
// Get the path to the downloaded shapefile
string filepath = GetShapefilePath();
try
{
// Open the shapefile
ShapefileFeatureTable myShapefile = await ShapefileFeatureTable.OpenAsync(filepath);
// Read metadata about the shapefile and display it in the UI
ShapefileInfo fileInfo = myShapefile.Info;
InfoPanel.DataContext = fileInfo;
// Display the shapefile thumbnail in an image control
ShapefileThumbnailImage.Source = await RuntimeImageExtensions.ToImageSourceAsync(fileInfo.Thumbnail);
// Create a feature layer to display the shapefile
FeatureLayer newFeatureLayer = new FeatureLayer(myShapefile);
await newFeatureLayer.LoadAsync();
// Zoom the map to the extent of the shapefile
MyMapView.SpatialReferenceChanged += (s, e) => { MyMapView.SetViewpoint(new Viewpoint(newFeatureLayer.FullExtent)); };
// Add the feature layer to the map
streetMap.OperationalLayers.Add(newFeatureLayer);
// Show the map in the MapView
MyMapView.Map = streetMap;
}
catch (Exception e)
{
MessageBox.Show(e.ToString(), "Error");
}
}
private static string GetShapefilePath()
{
return DataManager.GetDataFolder("d98b3e5293834c5f852f13c569930caa", "TrailBikeNetwork.shp");
}
}
}