corelibraries-devexpress-dot-dataaccess-dot-objectbinding-dot-objectdatasource-28533370.md
Specifies the object data source that can be a specific object instance or a type.
Namespace : DevExpress.DataAccess.ObjectBinding
Assembly : DevExpress.DataAccess.v25.2.dll
NuGet Package : DevExpress.DataAccess
public object DataSource { get; set; }
Public Property DataSource As Object
| Type | Description |
|---|---|
| Object |
A Object value, specifying the data source.
|
Because the Data Source wizard cannot be used for binding to a specific object instance, it is required to assign this instance to the DataSource property in code before calling the ObjectDataSource.Fill method. In the wizard, this scenario corresponds to the “Retrieve the data source schema” option.
If the DataSource property has been assigned a type, the ObjectDataSource will try to create an instance of this type when calling the ObjectDataSource.Fill method (this will require specifying the ObjectDataSource.Parameters property). In the wizard, this scenario corresponds to the “Retrieve the actual data” option.
If the ObjectDataSource.DataMember property has been assigned a static member, creating an instance of the corresponding type is not required, nor is specifying the constructor parameters.
The following code snippets (auto-collected from DevExpress Examples) contain references 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.
data-access-library-create-data-sources-at-runtime/CS/ObjectDataSourceSnippets/Code.cs#L18
objds.DataMember = "Items";
objds.DataSource = typeof(BusinessObject);
objds.EndUpdate();
foreach (var ods in DataSourceManager.GetDataSources<ObjectDataSource>(report, includeSubReports: true)) {
if (ods.DataSource is Type dataSourceType) {
ods.DataSource = ServiceProvider.GetRequiredService(dataSourceType);
reporting-web-forms-report-designer-add-data-sources/CS/WebApplication1/Default.aspx.cs#L87
objds.Name = "CustomObjectDataSource";
objds.DataSource = typeof(ItemList);
objds.Constructor = new DevExpress.DataAccess.ObjectBinding.ObjectConstructorInfo();
winforms-dashboard-data-federation/CS/DataFederationExample/Form1.cs#L157
DashboardObjectDataSource objectDataSource = new DashboardObjectDataSource("Object Data Source");
objectDataSource.DataSource = DataGenerator.Data;
objectDataSource.Fill();
winforms-dashboard-bind-chart-item-to-data-in-code/CS/Dashboard_CreateChart/Form1.cs#L44
DashboardObjectDataSource dataSource = new DashboardObjectDataSource();
dataSource.DataSource = (new nwindDataSetTableAdapters.SalesPersonTableAdapter()).GetData();
dashboardViewer1.Dashboard.DataSources.Add(dataSource);
data-access-library-create-data-sources-at-runtime/VB/ObjectDataSourceSnippets/Code.vb#L15
objds.DataMember = "Items"
objds.DataSource = GetType(BusinessObject)
objds.EndUpdate()
reporting-web-forms-report-designer-add-data-sources/VB/WebApplication1/Default.aspx.vb#L78
objds.Name = "CustomObjectDataSource"
objds.DataSource = GetType(ItemList)
objds.Constructor = New DevExpress.DataAccess.ObjectBinding.ObjectConstructorInfo()
winforms-dashboard-data-federation/VB/DataFederationExample/Form1.vb#L146
Dim objectDataSource As New DashboardObjectDataSource("Object Data Source")
objectDataSource.DataSource = DataGenerator.Data
objectDataSource.Fill()
winforms-dashboard-bind-chart-item-to-data-in-code/VB/Dashboard_CreateChart/Form1.vb#L46
Dim dataSource As New DashboardObjectDataSource()
dataSource.DataSource = (New nwindDataSetTableAdapters.SalesPersonTableAdapter()).GetData()
dashboardViewer1.Dashboard.DataSources.Add(dataSource)
reporting-wpf-mvvm-viewmodel-data-to-report/VB/EmployeeReport.vb#L17
Me.New()
objectDataSource1.DataSource = dataSource
End Sub
See Also