CODEWITHSUNDEEP
c#wpfdatagrid
sevi
sevi

Reputation: 480

DataGrid column size width fit to cell content

I have this XAML code: 

<Window>
    <Grid Name="gridBase" Width="Auto" Height="Auto">
        <DataGrid Grid.Row="1" DataContext="{StaticResource ItemCollectionViewSource}" ItemsSource="{Binding}" AutoGenerateColumns="False" CanUserAddRows="False" Name="dgPatchContent" Margin="10, 20, 10, 10" >
            <DataGrid.Columns>
                <DataGridTextColumn Binding="{Binding SoftwareName}" Header="Software Name" />
                <DataGridCheckBoxColumn Binding="{Binding AssignmentStatus_Stopped, UpdateSourceTrigger=PropertyChanged}" Header="Stopped" MinWidth="55" CanUserResize="False" />
                <DataGridCheckBoxColumn Binding="{Binding AssignmentStatus_New, UpdateSourceTrigger=PropertyChanged}" Header="New"  MinWidth="55" CanUserResize="False" />
                <DataGridCheckBoxColumn Binding="{Binding AssignmentStatus_Pilot, UpdateSourceTrigger=PropertyChanged}" Header="Pilot"  MinWidth="55" CanUserResize="False" />
                <DataGridCheckBoxColumn Binding="{Binding AssignmentStatus_Productive, UpdateSourceTrigger=PropertyChanged}" Header="Prod"  MinWidth="55" CanUserResize="False" />
            </DataGrid.Columns>
        </DataGrid>

        <StackPanel HorizontalAlignment="Right" VerticalAlignment="Bottom" Grid.Row="2" Orientation="Horizontal">
            <Button Content="OK" MinWidth="80" Margin="10,10,10,10" />
            <Button Content="Cancel" MinWidth="80" Margin="0,10,10,10" />
        </StackPanel>
    </Grid>
</Window>

The DataGrid is filled with objects containing some dummy values for testing purposes. The first few entries in the SoftwareName column have rather short strings (~10 characters). At the bottom I've added a large string (~60 characters).

I want to have the Cells have the Width of the largest string in that column when the application launches. Currently when I start it, the Width is the size of the largest string which is visible in my DataGrid. Only when I scroll to the bottom the DataGrid and Window resizes to the Width of the large 60char string.

I've played around with Width="SizeToContent" or "SizeToCells" but nothing seems to make the DataGrid have the correct size after the application has launched. Can someone point me in the right direction please?

Thanks for any help!

Upvotes: 3

Views: 5353

Answers (1)

icebat
icebat

Reputation: 4774

Well, DataGrid has row virtualization enabled by default, so only visible row objects are created initially, and the grid itself knows only about currently visible cells sizes:

When the EnableRowVirtualization property is set to true, the DataGrid does not instantiate a DataGridRow object for each data item in the bound data source. Instead, the DataGrid creates DataGridRow objects only when they are needed...

If your DataGrid is not a big one, then a most simple solution will be just to set EnableRowVirtualization="False", then the sizing will work from the start.

Upvotes: 4

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