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Xceed Toolkit Plus for WPF v5.1 Documentation
Xceed.Wpf.ListBox Assembly / Xceed.Wpf.Data Namespace / DataSourceProvider Class


In This Topic
    DataSourceProvider Class
    In This Topic
    Base class for all data-source providers.
    Syntax
    'Declaration
 

    Public MustInherit Class DataSourceProvider 
    'Usage
 

    Dim instance As DataSourceProvider
    public abstract class DataSourceProvider
    Inheritance Hierarchy

    System.Object
       Xceed.Wpf.Data.DataSourceProvider
          Xceed.Wpf.Data.AsyncDataSourceProvider
          Xceed.Wpf.Data.IndexDataSourceProvider
          Xceed.Wpf.Data.ParentDataSourceProvider
          Xceed.Wpf.Data.SyncDataSourceProvider

    Public Properties
     NameDescription
    Public PropertyCanCalculateStats  
    Public PropertyCanCountGets a value indicating whether the data-source provider can provide the item count.   
    Public PropertyCanFilterGets a value indicating whether the data-source provider supports filtering.   
    Public PropertyCanFilterGroup  
    Public PropertyCanGroupCountGets a value indicating whether the data-source provider supports retrieving the group count.  
    Public PropertyCanJump  
    Public PropertyCanJumpToItemGets a value indicating whether the data-source provider supports starting operations from a specific item in the data source.  
    Public PropertyCanSkipGets a value indicating whether the data-source provider supports skipping.   
    Public PropertyPageSizeGets or sets the number of items that will be requested when a data request query is sent to the server.  
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    Protected Properties
     NameDescription
    Protected Internal PropertyElementTypeGets the type of the elements in the data source.  
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    Public Methods
     NameDescription
    Public MethodNotifyItemsAddedOverloaded. Notifies the data-source provider that new items have been added to the data source.  
    Public MethodNotifyItemsChangedOverloaded. Notifies the data-source provided that items in the data source have changed.  
    Public MethodNotifyItemsRemovedOverloaded. Notifies the data-source provider that items have been removed from the data source.  
    Public MethodNotifyResetNotifies the data-source provider that the data source has been reset.  
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    Protected Methods
     NameDescription
    Protected MethodCanSortByRetrieves a value indicating whether the specified sort criteria are supported by the data source.  
    Protected MethodGetPrimaryKeyInfoRetrieves information about the data source's primary key(s).  
    Protected MethodGetSupportedFilterOperatorsRetrieves a list of the filter operators that are supported for the specified data type.  
    Protected MethodGetSupportedStatFunctionsRetrieves a list of the statistical functions that are supported for the specified data type.  
    Protected MethodInitializeInitializes the data-source provider.  
    Protected MethodOnDataObjectsAdded  
    Protected MethodOnDataObjectsRemoved  
    Protected MethodOnDataSourceChangedNotifies the data-source provider that the underlying data source has changed.  
    Protected MethodOnInvalidateData  
    Protected MethodOnInvalidateDataObjects  
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    Public Events
     NameDescription
    Public EventUnhandledExceptionRaised when an exception is thrown by the data source that is wrapped by the provider.  
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    Supported Frameworks

    .NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

    .NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

    See Also

    Reference

    DataSourceProvider Members
    Xceed.Wpf.Data Namespace

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