void PopupItem_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
// If the property of the popupitem that changed was the Graphic, then we need to reconstruct the title
// since the attribute used for the header might have been one of the ones that was changed and these
// need to be kept in sync.
if (e.PropertyName == "Graphic")
{
_popupInfo.PopupItem.Title = MapTipsHelper.ConvertExpressionWithFieldNames(_popupInfo.PopupItem, _popupInfo.PopupItem.TitleExpression);
}
}
public static PopupItem GetPopupItem(Graphic graphic, Layer layer, IEnumerable <FieldInfo> fields, LayerInformation layerInfo, string layerName, string title = null, int?layerId = null)
{
if (layerInfo != null || layer is GraphicsLayer)
{
PopupItem popupItem = new PopupItem()
{
Graphic = graphic,
Layer = layer,
Title = title,
LayerName = layerName,
};
if (layerId.HasValue)
{
popupItem.LayerId = layerId.Value;
}
if (layerInfo != null)
{
GetMappedAttributes(graphic.Attributes, layerInfo);
}
popupItem.FieldInfos = MapTipsHelper.ToFieldSettings(fields);
MapTipsHelper.GetTitle(popupItem, layerInfo);
bool hasContent = true;
DataTemplate dt = MapTipsHelper.BuildMapTipDataTemplate(popupItem, out hasContent, layerInfo);
if (!hasContent)
{
popupItem.DataTemplate = null;
}
else if (dt != null)
{
popupItem.DataTemplate = dt;
}
if (hasContent || (!string.IsNullOrWhiteSpace(popupItem.Title)))
{
return(popupItem);
}
}
return(null);
}
internal static void rebuildMapTipContentsBasedOnFieldVisibility(HoverResults results)
{
HoverResults hr = results as HoverResults;
if (hr == null)
{
return;
}
GraphicsLayer hrLayer = hr.Layer;
if (hr.Graphic == null || hr.Graphic.Attributes == null || hrLayer == null)
{
hr.Visibility = Visibility.Collapsed;
return;
}
Visibility hrVisibility = Visibility.Visible;
IEnumerable <FieldInfo> fields = ESRI.ArcGIS.Mapping.Core.LayerExtensions.GetFields(hrLayer); // Store the fields on the Map Tips element
string displayField = ESRI.ArcGIS.Mapping.Core.LayerExtensions.GetDisplayField(hrLayer);
if (string.IsNullOrEmpty(displayField))
{
displayField = FieldInfo.GetDefaultDisplayField(fields);
ESRI.ArcGIS.Mapping.Core.LayerExtensions.SetDisplayField(hrLayer, displayField);
}
Graphic popupGraphic = hr.Graphic;
PopupItem popupItem = new PopupItem()
{
DataTemplate = null,
Graphic = popupGraphic,
Layer = hrLayer,
LayerName = ESRI.ArcGIS.Mapping.Core.LayerExtensions.GetLayerName(hrLayer),
Title = null,
TitleExpression = null,
};
popupItem.FieldInfos = MapTipsHelper.ToFieldSettings(ESRI.ArcGIS.Mapping.Core.LayerExtensions.GetFields(hrLayer));
MapTipsHelper.GetTitle(popupItem, null);
bool hasContent = false;
popupItem.DataTemplate = MapTipsHelper.BuildMapTipDataTemplate(popupItem, out hasContent);
if (!hasContent)
{
popupItem.DataTemplate = null;
}
ESRI.ArcGIS.Client.Extensibility.PopupInfo popupInfo = new ESRI.ArcGIS.Client.Extensibility.PopupInfo()
{
AttributeContainer = hr.AttributeContainer,
Container = hr,
PopupItem = popupItem
};
hr.PopupInfo = popupInfo;
bool hasTitle = !string.IsNullOrEmpty(popupInfo.PopupItem.Title);
if (hasTitle || hasContent)
{
hrVisibility = Visibility.Visible;
// re-establish delay
TimeSpan delay = (TimeSpan)hr.Map.GetValue(DelayMapTipHide.HideDelayProperty);
hrLayer.MapTip.SetValue(GraphicsLayer.MapTipHideDelayProperty, delay);
}
else
{
hrVisibility = Visibility.Collapsed;
}
hr.Visibility = hrVisibility;
}
