DataSourceProvider Members
.NET Framework 3.5
Common base class and contract for DataSourceProvider objects, which are factories that execute some queries to produce a single object or a list of objects that you can use as binding source objects.
The DataSourceProvider type exposes the following members.
| Name | Description | |
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DataSourceProvider | Initializes a new instance of the DataSourceProvider class. This is a protected constructor. |
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BeginInit | Indicates that initialization of this object is about to begin; no implicit Refresh occurs until the matched EndInit method is called. |
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BeginQuery | When overridden in a derived class, this base class calls this method when InitialLoad or Refresh has been called. The base class delays the call if refresh is deferred or initial load is disabled. |
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DeferRefresh | Enters a defer cycle that you can use to change properties of the provider and delay automatic refresh. |
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EndInit | Indicates that the initialization of this object has completed; this causes a Refresh if no other DeferRefresh is outstanding. |
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Equals | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetType | Gets the type of the current instance. (Inherited from Object.) |
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InitialLoad | Starts the initial query to the underlying data model. The result is returned on the Data property. |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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OnPropertyChanged | Raises the PropertyChanged event with the provided arguments. |
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OnQueryFinished | Overloaded. Derived classes call this method to indicate that a query has finished. |
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Refresh | Initiates a refresh operation to the underlying data model. The result is returned on the Data property. |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
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Data | Gets the underlying data object. |
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Dispatcher | Gets or sets the current Dispatcher object to the UI thread to use. |
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Error | Gets the error of the last query operation. |
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IsInitialLoadEnabled | Gets or sets a value that indicates whether to prevent or delay the automatic loading of data. |
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IsRefreshDeferred | Gets a value that indicates whether there is an outstanding DeferRefresh in use. |
| Name | Description | |
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DataChanged | Occurs when the Data property has a new value. |
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PropertyChanged | Occurs when a property value changes. |
| Name | Description | |
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ISupportInitialize.BeginInit | This member supports the Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code. |
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ISupportInitialize.EndInit | This member supports the Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code. |
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INotifyPropertyChanged.PropertyChanged | Occurs when a property value changes. |
