Usage of ToolTipText with cluster in UI for WinForms

This is a migrated thread and some comments may be shown as answers.

Usage of ToolTipText with cluster

2 Answers 5 Views

Map

This is a migrated thread and some comments may be shown as answers.

perico asked on 18 Oct 2017, 08:40 AM

Hello,

I am using a map with 2 layers

Dim layer As New MapLayer("Site")

layer.ClusterStrategy = New ElementClusterStrategy()

layer.ClusterDistance = 50

Me.RadMap1.Layers.Add(layer)

Me.RadMap1.Layers.Add(New MapLayer("Base départ"))

And i add elements to the map like this

Dim element As New MapPin(siteInfo.Location)

element.Text = String.Format("{0}" & vbCrLf & "{1}", siteInfo.Name, siteInfo.adresse)

element.BackColor = Me.colors(siteInfo.identifieur)

element.Tag = siteInfo

element.ToolTipText = String.Format("{0}" & vbCrLf & "{1}", siteInfo.Name, siteInfo.adresse)

Me.RadMap1.Layers(siteInfo.identifieur).Add(element)

In this setup, tooltiptext works on pins contained on layer without cluster, but they don't on the one with cluster.

Can you tell me how can i use ToolTipText with cluster ?

Thank you

2 Answers, 1 is accepted

Accepted

answered on 19 Oct 2017, 03:27 PM

Hi Perico,

Thank you for writing.

The reported behavior is an issue and I have logged it on our feedback portal, here: https://feedback.telerik.com/Project/154/Feedback/Details/230060-fix-radmap-using-clusters-in-radmap-breaks-the-tooltips-added-to-mappins. I have also updated your Telerik points. Additionally, you can subscribe to the issue and be updated with its status changes. The issue is already in development and a fix will be included in the R1 2018 release.

Until then you can use the workaround below and handle the ToolTipTextNeeded event:

public partial class Form3 : Form

{

public Form3()

{

InitializeComponent();

MapLayer pointLayer = new MapLayer("PointG");

pointLayer.ClusterStrategy = new ElementClusterStrategy();

pointLayer.ClusterDistance = 100;

this.radMap1.Layers.Add(pointLayer);

MapPin pin1 = new MapPin(new PointG(45d, 15d)) { BackColor = Color.Coral, ToolTipText = "Tool Tip1" };

MapPin pin2 = new MapPin(new PointG(44d, 18d)) { BackColor = Color.Coral, ToolTipText = "Tool Tip2" };

this.radMap1.Layers["PointG"].Add(pin1);

this.radMap1.Layers["PointG"].Add(pin2);

this.SetupProviders();

this.radMap1.ToolTipTextNeeded += radMap1_ToolTipTextNeeded;

}

private void radMap1_ToolTipTextNeeded(object sender, Telerik.WinControls.ToolTipTextNeededEventArgs e)

{

MapCluster cluster = sender as MapCluster;

if (cluster != null && cluster.ClusteredItems.Count == 1)

{

cluster.ToolTipText = ((MapPin)cluster.ClusteredItems[0]).ToolTipText;

}

private void SetupProviders()

{

string cacheFolder = @"..\..\cache";

BingRestMapProvider bingProvider = new BingRestMapProvider();

bingProvider.Culture = System.Threading.Thread.CurrentThread.CurrentCulture;

bingProvider.ImagerySet = ImagerySet.Road;

bingProvider.UseSession = true;

bingProvider.BingKey = "...";

LocalFileCacheProvider cache = new LocalFileCacheProvider(cacheFolder);

bingProvider.CacheProvider = cache;

this.radMap1.MapElement.Providers.Add(bingProvider);

bingProvider.InitializationComplete += bingProvider_InitializationComplete;

}

private void bingProvider_InitializationComplete(object sender, EventArgs e)

{

this.radMap1.BringIntoView(new PointG(45d, 15d), 5);

}

I hope this helps. Please let me know if you need further assistance.

Regards,
Hristo
Progress Telerik

Try our brand new, jQuery-free Angular components built from ground-up which deliver the business app essential building blocks - a grid component, data visualization (charts) and form elements.