private void SearchButtonClick(object sender, EventArgs e)
{
// Get the search text entered.
string searchText = _searchTextField.Text.Trim();
// Fire the OnMapInfoEntered event and provide the map item values.
if (OnSearchMapsTextEntered != null)
{
// Create a new MapSavedEventArgs to contain the user's values.
var mapSaveEventArgs = new SearchMapsEventArgs(searchText);
// Raise the event.
OnSearchMapsTextEntered(sender, mapSaveEventArgs);
}
}
// Handle the SearchTextEntered event from the search input UI
// SearchMapsEventArgs contains the search text that was entered
private async void SearchTextEntered(object sender, SearchMapsEventArgs e)
{
try
{
// Get web map portal items from a keyword search
IEnumerable <PortalItem> mapItems = null;
ArcGISPortal portal;
// Connect to the portal (anonymously)
portal = await ArcGISPortal.CreateAsync(new Uri(ServerUrl));
// Create a query expression that will get public items of type 'web map' with the keyword(s) in the items tags
var queryExpression = string.Format("tags:\"{0}\" access:public type: (\"web map\" NOT \"web mapping application\")", e.SearchText);
// Create a query parameters object with the expression and a limit of 10 results
PortalQueryParameters queryParams = new PortalQueryParameters(queryExpression, 10);
// Search the portal using the query parameters and await the results
PortalQueryResultSet <PortalItem> findResult = await portal.FindItemsAsync(queryParams);
// Get the items from the query results
mapItems = findResult.Results;
// Show the map results
ShowMapList(mapItems);
}
catch (Exception ex)
{
// Report search error
UIAlertController alert = UIAlertController.Create("Error", ex.Message, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
finally
{
// Get rid of the search input controls
_searchMapsUI.Hide();
_searchMapsUI = null;
}
}