Before reading this article, I highly recommend reading the previous parts:
- Mastering WPF DataGrid in a Day: Hour 1 Introduction
- Mastering WPF DataGrid in a Day: Hour 2 DataGrid Layout and Border
- Mastering WPF DataGrid in a Day: Hour 3 DataGrid Header
- Mastering WPF DataGrid in a Day: Hour 4 DataGrid Rows
AutoGenerateColumns
The AutoGenerateColumns property determines whether the DataGrid columns will be autogenerated at run-time based on the data source object and its properties. Each public property of the data source collection becomes a column in the DataGrid. The DataGrid control is smart enough to know what type of column to generate for various data types. As you saw in Figure 4, the DataGrid generated 5 columns for 5 public properties of the Author class and a CheckBox column was generated for a book type IsMVP property.
Note: The AutoGenerateColumns value is set to true by default for a DataGrid.
The XAML code snippet in Listing 7 sets the AutoGenerateColumns to True.
- <DataGrid HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top"
- Height="219" Width="465" Name="McDataGrid" AutoGenerateColumns="True"/>
If the data source bound to the DataGrid has 50 columns and the user has set the AutoGenerateColumns property to “true” then it will generate and show all 50 columns for you. If you want to show fewer columns then set it to false and create the columns manually. We will discuss how to create columns manually later in this book.
ColumnWidth
The DataGrid control is smart enough to adjust and manage the width of its colummns. The ColumnWidth property represents the width settings of a DataGrid columns. The ColumnWidth is a DataGridLength structure that has the following key values that apply to columns:
- Auto: Automatic sizing mode.
- DesiredValue: Calculated pixel value needed for columns.
- DisplayValue: Pixel value needed for columns.
- SizeToCells: Width based on the content of the cells.
- SizeToHeader: Width based on the header.
- Value: Width in pixels.
Let's look at the output of some of these values.
Figure 8 is the result of ColumnWidth="SizeToHeader".
Figure 8
Figure 9 is the result of ColumnWidth="SizeToCells".
Figure 9
Figure 10 is the result of ColumnWidth="100".
Figure 10
Figure 11 is the result of ColumnWidth="*".
Figure 11
CanUserResizeColumns
By default, the DataGrid allows users to resize its columns and rows. But you can restrict users if they can resize the DataGrid columns and rows.
The CanUserResizeRows property is used to set whether or not users can resize the row. The CanUserResizeColumns property is used to set whether or not users can resize the columns.
The code snippet in Listing 13 restricts users from resizing the rows and columns of the DataGrid.
R SPosted Apr 22, 2020, 11:00 PM
Next Article event(To change a page) is not working on this page
Knarf VandPosted Jun 18, 2019, 3:59 AM
Link to next article is indeed broken.....
Umair KapoorPosted Aug 20, 2018, 12:57 AM
Can we change selected row height ?
Guillermo RodriguezPosted Jul 22, 2018, 8:25 PM
Hi, excellent article. Just beginning to move from Winform projects to WPF projects. The DataGridView events CellContentClick and CellMouseClick could not replace them in the events of a DataGrid in WPF. An article that will talk about the events of a DataGrid in WPF would be very helpful.Thanks, again for the article.
Saša CrljenicaPosted Jun 22, 2018, 12:53 PM
Next article is on the link: https://www.c-sharpcorner.com/UploadFile/mahesh/mastering-wpf-datagrid-in-in-a-day-hour-6-datagrid-columns/
Rick BurkePosted Oct 19, 2015, 11:35 AM
Nice tutorials...The next article link above is broken. I found the article anyway.