InformationDataProviderBase.LayerItemsGenerating Event
Occurs when a data provider starts generating map items for a layer.
Namespace: DevExpress.XtraMap
Assembly: DevExpress.XtraMap.v24.2.dll
NuGet Package: DevExpress.Win.Map
#Declaration
public event LayerItemsGeneratingEventHandler LayerItemsGenerating
#Event Data
The LayerItemsGenerating event's data class is LayerItemsGeneratingEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Cancelled |
Gets a value indicating whether an asynchronous operation has been canceled.
Inherited from Async |
Error |
Gets a value indicating which error occurred during an asynchronous operation.
Inherited from Async |
Items | Returns all the items generated for the layer. |
User |
Gets the unique identifier for the asynchronous task.
Inherited from Async |
The event data class exposes the following methods:
Method | Description |
---|---|
Raise |
Raises a user-supplied exception if an asynchronous operation failed.
Inherited from Async |
#Example
void OnLayerItemsGenerating(object sender, LayerItemsGeneratingEventArgs e) {
foreach(MapItem item in e.Items) {
MapPolyline polyline = item as MapPolyline;
if(polyline != null) {
polyline.Stroke = Color.FromArgb(0xFF, 0x00, 0x72, 0xC6);
polyline.StrokeWidth = 4;
}
}
}
#Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the LayerItemsGenerating event.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.