It is not intended to comply with Microsoft's bland guidelines for user interface styling. I realize the colors are a bit garish, but the purpose is to clearly show how a DataGrid cell's background color can be changed when its content changes. Note: The integer numbers in the cells are generated by a random generator and will differ each time the code is run, and also each time you click the button. When you build and run the code, the following window will appear: It is also assumed that the reader has a basic understanding of C# WPF projects, and the MVVM pattern. It also needs version 1.0.2, but this SDK is packaged with the project files. The solution was built using Visual Studio 2019 Community Edition, version 16.3.9 and. The background color of the cells change, depending on the new contents of the cell. In the application, every time the user clicks, the cells in the DataGrid are filled with new random integers from 1 to 9. A working example of the project can be downloaded from here. I provide the complete Visual Studio source code and other project files here. This styling is demonstrated with emphasis on the Model-View-ViewModel (MVVM) pattern in particular. One example of dynamic styling: If the value in a cell turns negative, you may want to change the background color of the cell to red. This little app demonstrates one way to dynamically modify the styling of the cells of a DataGrid based on the content of a cell.
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