c# Dynamically injecting views with PRISM and WPF

The above method calls another method existing within the same class I have called DataTemplateSelectorBase. Next we need to override a method within the System.Windows.Controls.DataTemplateSelector class. The ObjectTag itself is a DependencyProperty that can be attached to any type of control that is derived from DependencyObject.

Customizing vs. Purchasing a DataGrid

For Size property, for example, the grid populates two columns namely, “Size.Width” and “Size.Height”. The data binding interfaces allow you to create collection of custom objects where you want to present those collection of objects together, through the grid. You can also navigate through the objects to view them through the same grid and interact with them.

The Datagrid column definition in WPF and its corresponding row definition are represented by two parameters – GridWidth and GridHeight. Grouping can be performed interactively or declaratively on the Unbound Columns by using XAML code. The following screenshot shows a GDC which bound with an Object data using the Object Data Provider. This thread looks to be a little on the old side and therefore may no longer be relevant. Please see if there is a newer thread on the subject and ensure you’re using the most recent build of any software if your question regards a particular product. Users may also defer updates to the pivot panel to improve performance.

If the cell contains a number 1, 2 or 3, the background color is set to system color Colors.LightGreen. Then you just bind to Users collections and columns are autogenerated as you speficy them. At runtime you can add more PropertyDescriptors to ‘Users’ add another column to the grid. If your data is not a object with known type, you could create a data structure that would enable access by any number of columns and specify a PropertyDescriptor for each “column”.

Some of these features are possible with the standard datagrid, but others require writing a lot more code. If you use a third-party datagrid, you can enable most of these features rather quickly with just a few lines of code. Let’s replace the DataGrid control with FlexGrid, and then we’ll continue to customize it with advanced grouping and filtering. The WPF datagrids will automatically generate all the columns based on your data source. Rarely will the columns be in your or your user’s preferred order, so, in most cases, you will want to reorder or hide some columns.

1. Note that the XAML markup for the view contains only an empty DataGrid and the columns and bindings are defined in code.
2. The data grid control’s column property is declared as read-only, so it cannot be bound to a view model property.
3. WPF added many improvements over Windows Forms, but most significantly, it added better data binding, styling, and performance enhancements.
4. While these may not be “built-in” the same way as WinForms, they are fairly easy to implement, given the nature of the platform.
5. It owns a set of data providers that retrieves data from the underlying sources and place it in an ADO.NET DataSet object.
6. It is overloaded to accept row and column indices as parameters using which it fetches the corresponding unbound visible column and yields its value as output.
7. To mitigate the problem, I would add some logic that prevents the user from clicking the role check boxes until the row is attached to the data set.

Viewer Component

While that’s still more development work than setting a built-in feature, it’s still a lot easier than extending a control in Windows Forms or for the web. Editing is a critical feature as datagrids, like spreadsheets, are often used for batch editing. The standard WPF datagrid provides basic features and extensibility but does not have as many built-in features as most third-party datagrids. The .NET ecosystem has always supported custom components that you can build yourself or purchase from other software development teams. Create a model class according to the data and implement the INotifyPropertyChanged interface to notify when a property value changes.

The Fastest Possible Way to Achieve Your Objectives

GridDataControl confirms that it is an EntityFramework-aware control by providing support to EF-driven data sources. The EF model offers several architectural benefits that can be experienced in the networking applications. Connect to various data sources such as Microsoft SQL Server Analysis Services (SSAS), online or local cubes, or any data table or collection of business objects. There are many different ways to implement filtering in a .NET datagrid. You could add a traditional filter row fixed at the top of the datagrid.

The ComponentOne WPF FlexPivot control uses pivot grids and charts to deliver in-depth business intelligence (BI) functionality. Aggregate millions of rows of data in your WPF apps to create dynamic pivot tables like Microsoft Excel. 12) Press “Next” on the Table adapter connection wizard dialog after which a message box will ask you if you want to copy the database to the project.

This means that if CVS is linked to a source collection (ObservableCollection), then all the updates to the source list is transmitted to the grid. First, this doesn’t attempt to dynamically change the number of rows or columns in the actual Grid object. Instead, cells can emit Merge and Split events to which the main window can respond by creating or deleting cells and changing their Row, Column, and ColumnSpan attached properties. Pull multiple data sources into a single application and deliver data from online or local cubes that users can drill https://traderoom.info/displaying-data-in-tables-with-wpf-s-datagrid/ down and parse more meaningfully.

You can create an unbound column by instantiating the class GridDataUnboundVisibleColumn, which is a derivative of GridDataVisibleColumn. It contains a property named Format, which is used to specify a format for the unbound column. Given a visible column, it is possible to check whether it is an unbound column or not, using the IsUnbound property of that visible column. You can bind data columns from multiple data tables which are inter-related to the same grid. The following code example illustrates how to bind ‘OrderID’ and ‘CustomerID’ columns from the ‘Orders’ table, and ‘CompanyName’ and ‘ContactTitle’ columns from the ‘Customers’ table.

1. Also, other implementation for cells could be used; for example, 2-dimensional array of cells ICellViewModels works well.
2. An ObjectDataProvider is a class which creates an object that you can use as a binding source.
3. Note that you must set the AutoGenerateColumns property to False unless you want the combined effect of autogenerated columns and manually defined columns.
4. DataGrid is a data shaping component that allows the end user to manage the data and also display the data on the screen.
5. Of the above classes, the ObservableCollection is widely preferred as it is more user-friendly to use in a WPF application, and can be easily created by using XAML.

You can keep the grid notified of the underlying data source changes by setting a Boolean property called NotifyPropertyChanges. When it is set to true, the grid continues to listen to the data source changes and gets its field values updated accordingly. For this feature to take effect, the data source should implement the INotifyPropertyChanged interface.