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This class represents a dynamic data collection that provides notifications when items get added or removed.When you use an instance of Data Service Collection for data binding, the WCF Data Services client libraries handle these events to ensure that objects tracked by the Data Service Context remain synchronized with the data in the bound UI element.If you are binding an element to a related object that is returned by a navigation property, include the path in the binding defined for the Items Source property. Country == customer Country select cust; // Create a new collection for binding based on the LINQ query. tracked Customers = new Data Service Collection' Create a LINQ query that returns customers with related orders. Auto Change Tracking, "Customers", _ Address Of On My Property Changed, Address Of On My Collection Changed) ' Bind the root Stack Panel element to the collection ' related object binding paths are defined in the XAML. tracked Customers = New Data Service Collection(Of Customer)(customer Query) ' Bind the Customers combobox to the collection. Display Member = "Customer ID" customers Combo Box.This path is relative to the root object set by the Data Context property of the parent control. tracked Customers = new Data Service Collection(customer Query, Tracking Mode. Data Context = tracked Customers; // Create a LINQ query that returns customers with related orders. Data Source = tracked Customers When you use the Add Service Reference dialog to generate the client data service classes, a project data source is also created that is based on the generated Data Service Context.If you need to manually track these changes, call one of the constructor methods that takes a ' Create a new collection that contains all customers and related orders. tracked Customers = New Data Service Collection(Of Customers)(customer Query, _ Tracking Mode. When you use the Add Service Reference dialog box or the Data Svc tool to generate the client data service classes, the navigation property returns an instance of Data Service Collection.Dim tracked Customers As Data Service Collection(Of Customer) = _ New Data Service Collection(Of Customer)(context. Expand("Orders")) class that contains the query result. Country = customer Country _ Select cust ' Create a new collection for binding based on the LINQ query. Data Context = tracked Customers ' Create a LINQ query that returns customers with related orders. Auto Change Tracking, "Customers", _ Address Of On My Property Changed, Address Of On My Collection Changed) ' Bind the root Stack Panel element to the collection ' related object binding paths are defined in the XAML. This enables you to bind related objects to a control, and support common WPF binding scenarios, such as the master-detail binding pattern for related entities.Handle the User Deleting Row event to display a confirmation box to the user. If the user clicks cancel, set e.cancel = true which cancels the row deletion.The snippet shown below, first auto-resizes the columns to fit its content.

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Show Metro Dialog Async(new Custom Base Metro Dialog()); // create and show custom dialog with own settings await this.

The following example sets the Data Context property of a Stack Panel element to bind the parent control to an Data Service Collection// Create a LINQ query that returns customers with related orders. Auto Change Tracking,"Customers", On Property Changed, On Collection Changed); // Bind the root Stack Panel element to the collection; // related object binding paths are defined in the XAML. With this data source, you can create UI elements or controls that display data from the data service simply by dragging items from the Data Sources window onto the designer.

These items become elements in the application UI that are bound to the data source.

Data Grid View control is a Windows Forms control that gives you the ability to customize and edit tabular data.

In this short snippet, we will populate a Data Grid View using the Load Data() method.




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