wpf advanced datagrid

Easily get started with the WPF DataGrid using a few simple lines of XAML or C# code example as demonstrated below. Also explore our WPF DataGrid Example that shows you how to render and configure the data grid. Serialize the WPF DataGrid settings to XML format and load back (deserialization) to a data grid using the built-in serialization options. Users can adjust (auto fit) the row height based on the content of any column or certain columns to enhance the readability of content. The WPF DataGrid control can handle high-frequency updates even under the most demanding scenarios where the data is sorted and grouped in real-time.

Navigation Menu

wpf advanced datagrid

The DataGrid control looks a lot like the ListView, when using a GridView, but it offers a lot of additional functionality. For instance, the DataGrid can automatically generate columns, depending on the data you feed it with. The DataGrid is also editable by default, allowing the end-user to change the values of the underlying data source. Filtering can be enabled by setting SfDataGrid.AllowFiltering property to true , where you can open advanced filter UI by clicking the Filter icon in column header and filter the SfDataGrid.

The DataGrid control

  1. When a user deletes a row with the DataGrid control, the CollectionChanged event is fired on the bound collection.
  2. Works with Master/Detail views, collapsed groups, and also with data virtualization enabled.
  3. Navigate to the Xceed Data Grid for WPF product page and click on the “Download” button.
  4. However, in this instance, we are not really concerned about being able to cancel edits; all we really need to know is when the user has finished editing a row.
  5. For a thorough DataSet tutorial, I would recommend this Data Access Layer tutorial.

The following example is a business object that shares similar constraints to the previous Person object; however, this object has a further rule that StartDate must be before EndDate. This example is a simple CRUD application which allows the user to edit items in the Customers table of the Northwind database. Because we are only performing CRUD functions, I have not added a Business Logic Layer (BLL); if you are a purist, https://traderoom.info/displaying-data-in-tables-with-wpf-s-datagrid/ you could add a pass-through BLL; however, I feel it would add little to this example. In summary, Xceed Data Grid for WPF is an invaluable tool for any developer looking to create powerful, visually striking, and feature-rich data grid solutions. Its extensive feature set and customization options make it a top choice for those seeking to enhance their applications and provide a truly exceptional user experience.

Column chooser

Interestingly, the DatePicker picks up the current culture, whereas the TextBlock binding does not (yes, I live in the UK!). As you can see, there are no UI framework specific interfaces or classes (such as ObservableCollection) exposed by the DAL. The problem here is how to bind the customers returned by ICustomerDataAccess.GetCustomers to our DataGrid and ensure that changes are synchronised with the database. This design-time support is certainly nice to have; however, it is very easily missed as it inserts a single menu option into an existing context menu.

Unbound column

The WPF designer (Cider) does not follow the conventions of the Windows Forms and ASP.NET designers which indicate that a control has design-time support by the presence of a small button in the top right corner. The source could just as easily have been a database table/view or even an XML file – the DataGrid is not picky about where it gets its data from. You can customize the editing operations by handling SfDataGrid.CurrentCellBeginEdit and SfDataGrid.CurrentCellEndEdit events.

By default, column widths, visibility, positions, and fixed-column counts as well as grouping and sorting criteria are persisted; merged columns, their positions, and their visibility can also be persisted. However, these settings can be modified when calling the SaveUserSettings and LoadUserSettings methods. The FilterRow class represents a row in which values can be entered to filter the items in the corresponding columns. Custom type columns can also be filtered if they provide a TypeConverter (from string) and implement IComparable. This article has been a bit of a mixed-bag of samples; however, I hope that some of you out there will find something of use to you. The WPF DataGrid, although currently rough around the edges, is a control with great potential.

wpf advanced datagrid

The DataGridRow has a ValidationErrorTemplate which defines the appearance of this indicator. With the example given below, the exclamation mark is rendered within a red circle in order to give it a more striking appearance. The templated control which displays the error indicator is a child of the DataGridRow; therefore, we can obtain the validation errors from the row via a FindAncestor RelativeSource binding. To determine when a user finishes editing a bound item, we need to delve a little deeper into the binding mechanism itself. The DataGrid is able to perform an atomic commit of the row which is currently being edited; this is made possible if the bound items implement the IEditableObject interface which exposes BeginEdit, EndEdit, and CancelEdit methods.

You can then invoke methods on this class in order to provide data to your controls. This method yields a few extra benefits which are described in Beatriz Stollnitz’s blog. Probably, one of the most frequent uses of a DataGrid is to provide the user with CRUD functions (create, read, update, delete) for managing a persistent data source. This example describes how to connect a Typed DataSet to the DataGrid in such a way that row modifications, deletions, and insertions are written to the database. The last and empty row will let you add to the data source, simply by filling out the cells.

All database synchronisation logic is performed by handling event from this bound collection; therefore, there is no WPF DataGrid specific code. FlexGrid supports drop-down filters in the column headers like Microsoft Excel with special filter editors for different data types. The WPF DataGrid control provides an entirely custom context menu to expose the functionality on the user interface. Users can create context menus for different rows such as a record row, summary row, and group caption header in an efficient manner. The appearance of a grid when it is printed or exported is determined by the view assigned to a grid’s PrintView property and the theme assigned to the view’s Theme property. The standard validation error indicator is a red exclamation mark which is displayed at the left hand side of the row.

Typically, an object implementing this interface would return to its state at the point when the BeginEdit method was called as a response to the CancelEdit method being invoked. However, in this instance, we are not really concerned about being able to cancel edits; all we really need to know is when the user has finished editing a row. When a user deletes a row with the DataGrid control, the CollectionChanged event is fired on the bound collection. In the event handler, we invoke the DAL DeleteCustomer method with the wrapped data object passed as the parameter. This example is simple to implement; however, it results in a tight coupling between your database schema and your user interface.

For a thorough DataSet tutorial, I would recommend this Data Access Layer tutorial. The most common usage for the DataGrid is in combination with a database, but like most WPF controls, it works just as well with an in-memory source, like a list of objects. Since it’s a lot easier to demonstrate, we’ll mostly be using the latter approach in this tutorial. Let’s say you have window, https://traderoom.info/ 100 pixels wide and you have DataGrid with one column, which cell is “the quick brown fox…” (400 pixels wide). Thus the DataGrid should be resized to 400 pixels (probably more, because of padding) and the Window should be resized to 400 pixels too (also more, because of padding). You can also create custom themes or modify existing ones by using WPF styles and templates.



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