DataSourceAdapterBase.DataSource Property

Specifies the data source to provide data for a data adapter.

Namespace: DevExpress.Xpf.Map

Assembly: DevExpress.Xpf.Map.v22.2.dll

NuGet Package: DevExpress.Wpf.Map

Declaration

C#

public object DataSource { get; set; }

VB.NET

Public Property DataSource As Object

Property Value

Type	Description
Object	A Object.

Example

This example shows how to use the ListSourceDataAdapter to load shipwreck information from an XML file and display wrecked ship images on a map.

1. Create a ListSourceDataAdapter object and assign it to the VectorLayer.Data property.
2. Specify the DataSourceAdapterBase.DataSource property.
3. Configure the ListSourceDataAdapter.Mappings property to assign data source field values to map items.
4. Use the ListSourceDataAdapter.ItemSettings property to specify map item settings.

View Example

MainWindow.xaml

<dxm:VectorLayer.Data>
    <dxm:ListSourceDataAdapter DataSource="{Binding Source={StaticResource data}, XPath=Ship}">
        <dxm:ListSourceDataAdapter.AttributeMappings>
            <dxm:MapItemAttributeMapping Name="Name" Member="Name"/>
            <dxm:MapItemAttributeMapping Name="Year" Member="Year"/>
            <dxm:MapItemAttributeMapping Name="Description" Member="Description"/>
        </dxm:ListSourceDataAdapter.AttributeMappings>
        <dxm:ListSourceDataAdapter.Mappings>
            <dxm:MapItemMappingInfo Latitude="Latitude" Longitude="Longitude"/>
        </dxm:ListSourceDataAdapter.Mappings>
        <dxm:ListSourceDataAdapter.ItemSettings>
            <dxm:MapCustomElementSettings ContentTemplate="{Binding Source={StaticResource itemTemplate}}"/>
        </dxm:ListSourceDataAdapter.ItemSettings>
    </dxm:ListSourceDataAdapter>
</dxm:VectorLayer.Data>

The structure of the XML file used in the example looks as follows:

Show XML

XML

<?xml version="1.0" standalone="yes"?>
<Ships>
  <Ship>
    <Year>1898</Year>
    <Name>Koonya</Name>
    <Description>A steamboat that ran aground off Cronulla Beach.</Description>
    <Latitude>-34.042876</Latitude>
    <Longitude>151.206777</Longitude>
  </Ship>
  <Ship>
    <Year>1809</Year>
    <Name>Hazard</Name>
    <Description>A sloop that ran aground on Box Head.</Description>
    <Latitude>-33.54227</Latitude>
    <Longitude>151.3485</Longitude>
  </Ship>  
  <!--...-->
</Ships>

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the DataSource property.

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.

XAML

how-to-implement-a-custom-clusterer-t311800/CS/CustomClustererSample/MainWindow.xaml#L18

<dxm:VectorLayer DataLoaded="VectorLayer_DataLoaded">
    <dxm:ListSourceDataAdapter DataSource="{Binding Source={StaticResource dataSource}}"
                               DataMember="Row">