It doesn’t have any access to the source property, i.e. the User object. You could make the GroupsToBooleanConverter class derive from the System.Windows.DependencyObject class, add a dependency property to it and bind the source value to this dependency property. Note however that as a converter is not part of the visual tree, it doesn’t have any DataContext and this means that you have to get or inherit this from somewhere.
(F) The software is licensed “as-is.” You bear the risk of using it. The contributors give no express warranties, guarantees or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, wpf dynamic table fitness for a particular purpose and non-infringement. Includes built-in save and load of views, which saves development time and increases productivity by giving more power to the end-user. Built on a super-charged data engine, FlexPivot offers a lightning-fast data engine that will give your users more power, speed, and reach than ever before.
The WPF ListBox Control and List Selection Options
Export the WPF pivot table to Excel (XLSX) and save the formatting information in addition to the data. The saved files will include most formatting information including row and column dimensions, fonts, colors, formats, and cell alignment. 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. I took data table and created the Columns as ColumnInfo class and also updated rows info[From RowsInfo class].
DevExpress engineers feature-complete Presentation Controls, IDE Productivity Tools, Business Application Frameworks, and Reporting Systems for Visual Studio, Delphi, HTML5 or iOS & Android development. Whether using WPF, ASP.NET, WinForms, HTML5 or Windows 10, DevExpress tools help you build and deliver your best in the shortest time possible. Progress is the leading provider of application development and digital experience technologies. Since I am not quite certain about the result you wish to achieve, I will provide several Knowledge Base articles that describe how to create different kinds of dynamic Tables.
Enter your email address to follow this blog and receive notifications of new posts by email. A “contribution” is the original software, or any additions or changes to the software. And here is complete C# code of the program with some sample data. It allows you to generate a table on the server side and on use the client to render the XAML.
Users can apply conditional formatting at runtime using the built-in menus from the pivot panel. Highlight high and low values by coloring the text color, cell color or text weight. For example, highlight values below zero, or highlight the top 10% of values. Just connect the all-in-one FlexPivotPage component to a data source and you have a complete analytical tool including the pivot panel, grid, chart and a toolbar.
Runtime Table Creation in WPF
Deliver in-depth business intelligence with a pivot UI that slices and dices your tabular and cube data to give users real-time information, insights, and results in seconds. The easy-to-use controls are https://traderoom.info/ modeled after Microsoft Excel® Pivot Tables, so they’re powerful and familiar for all users. If you need WPF to populate datagrid, please refer to the following discussion on Microsoft’s Q&A blog.
Try to better understand it I thought why not keep my hands dirty with it and give it a short. Pull multiple data sources into a single application and deliver data from online or local cubes that users can drill down and parse more meaningfully. Connect directly to your Microsoft® SQL Server® Analysis Services (SSAS) cube without any server go-between.
Each new column can be one of several datatypes (string, date, lookup key to another table, integer, etc). The values in the columns can be a value directly entered in, or a formula based off of other columns. The databases are shipped with a few base columns, and the rest are all defined in the field by the various end users. The post is devoted to the Wpf datagrid with cells that have defined fixed size but a number of rows and columns is updated dynamically in order to fill all available space.
For example, if you add another row to the Group database table, you want another column representing this new group to show up in the DataGrid without any changes to the code. Dynamic grid is implemented as user control that contains DataGrid control bound to observable collection of collections of cell view models. I am preparing to do an upgrade of a fairly large program that is currently written entirely in MS Access, both GUI and data (code and data in separate files). One of the key features of the product is that end users can add additional columns to several of the tables at run time.
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Because I have two properties in my Table class, therefore I have to assigned it for header and data in DataGrid. Rest of the step is just populate some data in class and assigned its object to DataContext of my Window class. That code fixes the width of the cells, I made it dynamic too. Adds support for dynamic columns to DataGrid for WPF/UWP/Uno platforms. After setting , the final source code of the MainWindow.XAML is given below.
Note that the name of the DataTemplate is passed as a property to the CustomBoundColumn, so you could dynamically choose a DataTemplate to use based on the type of property (e.g., use a different template if the value is numeric). In this particular example, one user can belong to multiple groups and one group can have multiple users. You may license other files that are entirely your own work and do not contain code from the software under any terms you choose. You can customize the FlexPivotPage control, or use the separate grid, panel and chart components to build a completely custom pivot UI.
The default settings of a datagrid allows the user to select entire rows (and multiple rows) by clicking the left mouse button. With this, the SelectionMode property is Extended, and the SelectionUnit is FullRow. First, the AutoGenerateColumns property is changed to false to instruct .NET not to use the properties from the data as columns; then the desired columns are specified by adding DataGridTextColumns to the markup. The property Header sets the text that is displayed at the top of the column. To be able to access the CheckBox control that is generated by a DataGridCheckBoxColumn, you can create your own class that extends the DataGridCheckBoxColumn class and overrides the GenerateElement method. This method is responsible for creating the actual CheckBox control that is bound to the column’s Binding property.
After control size is changed and number of rows and columns of grid are calculated, cell set is recreated, but state of cells are preserved. Then collection of cell view models is updated by asynchronous method. Method analyses necessary changes and remove or add rows and remove or add cell view models to rows. Asynchronous method allows to keep application responsible, and using cancellation token allows to cancel updating if control size is changed again. Note that the XAML markup for the view contains only an empty DataGrid and the columns and bindings are defined in code.
- After control size is changed and number of rows and columns of grid are calculated, cell set is recreated, but state of cells are preserved.
- To the extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a particular purpose and non-infringement.
- Just connect the all-in-one FlexPivotPage component to a data source and you have a complete analytical tool including the pivot panel, grid, chart and a toolbar.
- When used in combination with AlternationCount, you can change the background of every nth row – where n is the value of AlternationCount.
- Try to better understand it I thought why not keep my hands dirty with it and give it a short.
- It provides a feature called AutoGenerateColumns that automatically generates columns.
For example, such grid could be used in games at infinite 2D field or implementation of cellular automaton. There is an issue with binding to view size – as bindings are executed in single thread, new values of view width and height come in different moments. In addition, in order to prevent too frequent changes of grid sizes if user are resizing window slowly, timer is used in application.
After new cells set is created, collection of cell view models should be updated. In the previous post, this collection was recreated each time and it leads to application hangs. This issue is solved by asynchronous method of updating current collection. Due to Wpf architecture and as dynamic grid user control item source is bound to Cells collection, all changes of this collection is done via Dispatcher. In the application priority DispatcherPriority.ApplicationIdle is used as it is executed after all data bindings, but other value could be used.
Defining cell template is even easier, because we already have access to Columns collection and we don’t have to do anything special like relative binding or UIElement to UIElement binding. That application works only with read only data, I wanted to make data editable, therefore I modified code accordingly to make it writable dynamic columns grid. I came across a problem where I am suppose to create a data grid with dynamic columns in it. I.e. number of columns decided on run time depends on the data in it.
DataGrid with Dynamic Columns
I set only data, width and color, but we can easily add more properties in this class. My next step is to create a column class, which is nothing more than a collection of ColumnData class object. In this short guide, you will see how to add a datagrid to a WPF project using extensible application markup language (XAML) and C#. It is not a full tutorial of C# – you can find in-depth instruction on C# and working with Visual Studio at Udemy.com – and nor does it cover the entire range of options and techniques available to programmers using WPF. Learn C# Part III covers WPF controls and key concepts such a data binding. In the application, which will be either winforms or WPF to start, we will need to bind those fields to controls and collections of rows to grids.
Furthermore, there is a table that contains the metadata about the fields. Dynamically group and aggregate data across the top or down the side of the WPF pivot grid. The FlexPivotGrid is an extension of FlexGrid and supports automatic data binding, grouped row and columns, summaries, resizing columns, filtering data and drill-down details for each cell in the grid.
- You can customize the FlexPivotPage control, or use the separate grid, panel and chart components to build a completely custom pivot UI.
- Software Engineering Stack Exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle.
- The main idea of the runtime approach is to define a Detail Band template.
- Create dynamic pivot tables like Microsoft Excel and aggregate millions of rows of data in milliseconds with ComponentOne FlexPivot.
- The values for the number of rows and columns may change dynamically.
Using the base tools of Visual Studio or Blend do not allow to reach the desired result or not always possible. As you can see, I dynamically create a Binding, and use the index of the column in my model as the binding path. When building an application, I might not have the luxury of creating model classes to represent the objects I’ll be rendering on screen, because they are dynamic. If I don’t know the shape of my data, I can use a meta model (a model of the final model) to represent it.
You can look at the WPF grid example in the image below, which shows a 10×5 grid table. The values for the number of rows and columns may change dynamically. In the above code, the top level items source is a list of CelebrityCategory objects. In this sample the top level item’s ItemTemplate (the content of the HierarchicalDataTemplate)
and the child item’s ItemTemplate (the content of HierarchicalDataTemplate.ItemTemplate) are very
DataGrid is a data shaping component that allows the end user to manage the data and also display the data on the screen. It provides a feature called AutoGenerateColumns that automatically generates columns. Note in the above sample, it is necessary to set the TreeView’s ItemTemplate
property in order to display the item correctly. In the above example, the ItemTemplate contains a
to display the person’s name and a Bitmap element to display the person’s picture.
Also, I don’t really need to use specifically the DataGrid, as this will be simple table of strings for preview only – it may be as well displayed, say, inside Grid with ItemsControl – I just need to provide a view with columns and rows. You typically use the Binding property of a DataGridCheckBoxColumn to bind to a source property of type System.Boolean (bool). However, you can also bind to a source property of some other type and use a value converter to convert the value of this type to a Boolean value that can be set on the CheckBox’s IsChecked property and this is exactly what you want to do here. Convey the same WPF pivot table view in a chart to discover new insights and trends. The FlexPivotChart is an extension of FlexChart and supports multiple chart types, like column, bar, area, scatter, and pie, tooltips, legends and hierarchical axes. As a added benefit I also add the property to change the color of individual item or header and make it easy to add even future addition.