Datagrid columns auto fill not working on auto generated columns

Question

I try to resize the columns of my DataGrid that the columns just take enough space they needed.

Can't upload an image of what I want it seems.

But for example:

Header      |Header         |
Content     |MoreContent    |

How can I make it:

Header |Header2    |
Content|MoreContent|

Tried this in the xaml file:

ColumnWidth="*"

And this:

MyDataGrid.AutoGeneratedColumns += MyDataGrid_AutoGeneratedColumns;

private void MyDataGrid_AutoGeneratedColumns(object sender, EventArgs e)
    {
        foreach (var oColumn in OgonePaymentInfoDataGrid.Columns)
        {
            // This is how to set the width to *
            oColumn.Width = new DataGridLength(1.0, DataGridLengthUnitType.Star);
        }
    }

This is how I fill my DataGrid:

MyDataGrid.ItemsSource = items;

The columns should be auto-sized by default. Are you setting the width explicitly somewhere? — mm8

ASh ASh · Accepted Answer · 2019-08-21T08:34:06

ColumnWidth="*" will stretch all DataGrid columns equally. you can use

<DataGrid ColumnWidth="{x:Static DataGridLength.SizeToCells}">

</DataGrid>

without additional event handlers for AutoGeneratedColumns event.

ColumnWidth property has type DataGridLength, and SizeToCells is one of possible values, which are defined as static properties.

Datagrid columns auto fill not working on auto generated columns

2 Answers