So, this is literally my first day writing a single line of C# and working with the .NET SDK. The Developer documentation has been really good thus far and I've been able to understand everything pretty well.
Unfortunately, when I got towards the end of the third tutorial, I ran into a problem - my corporate proxy.
Since this is my first day working with C#, I'm not sure how to build a function to use IWA to authenticate to our internal proxy.
Any help or guidance is greatly appreciated.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Esri.ArcGISRuntime.Controls;
using Esri.ArcGISRuntime.Portal;
using Esri.ArcGISRuntime.WebMap;
namespace FirstApp
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private ArcGISPortal arcGISOnline;
private ArcGISPortalItem selectedPortalItem;
// changes the basemap layer
private void baseMap_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var combo = sender as ComboBox;
var sel = combo.SelectedItem as ComboBoxItem;
if (sel.Tag == null) { return; }
//Find and remove the current basemap layer from the map
if (mainMap == null) { return; }
var oldBasemap = mainMap.Layers["BaseMap"];
mainMap.Layers.Remove(oldBasemap);
//Create a new basemap layer
var newBaseMap = new Esri.ArcGISRuntime.Layers.ArcGISTiledMapServiceLayer();
//Set the ServiceUri with the url defined for the ComboboxItem's Tag
newBaseMap.ServiceUri = sel.Tag.ToString();
//Give the layer an ID so it an still be found with the code above
newBaseMap.ID = "BaseMap";
//Insert the new basemap layer as the first (bottom) layer in the map
mainMap.Layers.Insert(0, newBaseMap);
}
// searches the portal for content
private async void SearchButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (this.arcGISOnline == null)
{
// create the uri for the portal
var portalUri = new Uri("https://gis.kdc.capitalone.com/portal/sharing/rest");
// create the portal
this.arcGISOnline = await ArcGISPortal.CreateAsync(portalUri);
}
// create a variable to store search results
IEnumerable<ArcGISPortalItem> results = null;
if (this.ItemTypeCombobox.SelectedValue.ToString() == "BaseMap")
{
// basemap search returns web maps that contain the basemap layer
var basemapSearch = await this.arcGISOnline.ArcGISPortalInfo.SearchBasemapGalleryAsync();
results = basemapSearch.Results;
}
else
{
// get the search term provided in the UI
var searchTerm = this.SearchTextBox.Text.Trim();
var searchItem = this.ItemTypeCombobox.SelectedValue.ToString();
// build a query that searches for the specified type
// ('web mapping application' is excluded from the search since 'web map' will match those item types too)
var queryString = string.Format("\"{0}\" type:(\"{1}\" NOT \"web mapping application\")", searchTerm, searchItem);
var searchParameters = new SearchParameters()
{
QueryString = queryString,
SortField = "avgrating",
SortOrder = QuerySortOrder.Descending,
Limit = 10
};
// execute the search
var itemSearch = await this.arcGISOnline.SearchItemsAsync(searchParameters);
results = itemSearch.Results;
}
// show the results in the list box
this.ResultListBox.ItemsSource = results;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error searching Atlas");
}
}
// resets the UI controls to keep them in sync with the currently selected portal item in the ResultsListBox
private void ResetUI()
{
// clear UI controls
this.SnippetTextBlock.Text = "";
this.ThumbnailImage.Source = null;
this.ShowMapButton.IsEnabled = false;
}
private void ResultSelectionChanged(object sender, SelectionChangedEventArgs e)
{
this.ResetUI();
// store the currently selected portal item
this.selectedPortalItem = this.ResultListBox.SelectedItem as ArcGISPortalItem;
if (this.selectedPortalItem == null) { return; }
// show the portal item snippet (brief description) in the UI
if (!string.IsNullOrEmpty(this.selectedPortalItem.Snippet))
{
this.SnippetTextBlock.Text = this.selectedPortalItem.Snippet;
}
// show a thumnail for the selected portal item (if there is one)
if (this.selectedPortalItem.ThumbnailUri != null)
{
var src = new BitmapImage(this.selectedPortalItem.ThumbnailUri);
this.ThumbnailImage.Source = src;
}
// enable the show map button when a web map portal item is chosen
this.ShowMapButton.IsEnabled = (this.selectedPortalItem.Type == ItemType.WebMap);
}
private async void ShowMapButton_Click(object sender, RoutedEventArgs e)
{
// create a web map from the selected portal item
var webMap = await WebMap.FromPortalItemAsync(this.selectedPortalItem);
// load the web map into a web map view model
var webMapVM = await WebMapViewModel.LoadAsync(webMap, this.arcGISOnline);
// show the web map view model's map in the page's map view control
this.mainMapView.Map = webMapVM.Map;
}
}
}
