ListView column auto sizing

Question

Let\'s say I have the following ListView:

Answer 1

There is no easy way to do this with a GridListView since it doesn't support setting the width of a column to "*" (fill remaining space).

Here is a discussion of how you could fake it by using an IValueConverter to set the width of the column to TotalListWidth - SumOfColumnWidths

On the other hand, have you considered using a DataGrid instead? This will support the kind of layout you are looking for, though is a considerably heavier control. It is also only native in .NET 4 - though you can get an equivalent for 3.5 through the WPF Toolkit.

Answer 2

<Grid Name="dummygrid" Visibility="Hidden">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="0.5*"></ColumnDefinition>
                <ColumnDefinition Width="0.2*"></ColumnDefinition>
                <ColumnDefinition Width="0.1*"></ColumnDefinition>
                <ColumnDefinition Width="0.2*"></ColumnDefinition>
                <ColumnDefinition Width="150"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <Border Grid.Column="0" Name="dummywidth1"></Border>
            <Border Grid.Column="1" Name="dummywidth2"></Border>
            <Border Grid.Column="2" Name="dummywidth3"></Border>
            <Border Grid.Column="3" Name="dummywidth4"></Border>
            <Border Grid.Column="5" Name="dummywidth5"></Border>
        </Grid>
        <ListView  Name="Installer_LV" Grid.Row="1" ItemContainerStyle="{StaticResource LV_ItemStyle}" ScrollViewer.HorizontalScrollBarVisibility="Disabled"  AlternationCount="2">
            <ListView.View>
                <GridView ColumnHeaderContainerStyle="{StaticResource LV_HeaderStyle}">
                    <GridViewColumn  Width="{Binding ElementName=dummywidth1, Path=ActualWidth}"  DisplayMemberBinding="{Binding DisplayName}" >
                        <GridViewColumn.Header>
                            <GridViewColumnHeader Tag="DisplayName" Click="InstallerLV_HeaderClick">Name</GridViewColumnHeader>
                        </GridViewColumn.Header>
                    </GridViewColumn>
                    <GridViewColumn  Width="{Binding ElementName=dummywidth2, Path=ActualWidth}" DisplayMemberBinding="{Binding Publisher}">
                        <GridViewColumn.Header>
                            <GridViewColumnHeader Tag="Publisher" Click="InstallerLV_HeaderClick">Publisher</GridViewColumnHeader>
                        </GridViewColumn.Header>
                    </GridViewColumn>
                    <GridViewColumn  Width="{Binding ElementName=dummywidth3, Path=ActualWidth}" DisplayMemberBinding="{Binding Version}">
                        <GridViewColumn.Header>
                            <GridViewColumnHeader Tag="Version" Click="InstallerLV_HeaderClick">Version</GridViewColumnHeader>
                        </GridViewColumn.Header>
                    </GridViewColumn>
                    <GridViewColumn  Width="{Binding ElementName=dummywidth4, Path=ActualWidth}" DisplayMemberBinding="{Binding Size}">
                        <GridViewColumn.Header>
                            <GridViewColumnHeader Tag="Size" Click="InstallerLV_HeaderClick">Size</GridViewColumnHeader>
                        </GridViewColumn.Header>
                    </GridViewColumn>
                    <GridViewColumn Header="Action" Width="150">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <Button  Height="38" Width="130" Style="{DynamicResource RoundedButton}" Content="{Binding Status}" Tag="{Binding ModuleId}"  HorizontalAlignment="Center" VerticalAlignment="Center" Click="onActionClick"></Button>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>

In the above example i have used a dummy grid and split into 5 columns and using binding assign that size to "GridViewColum" by

Width="{Binding ElementName=dummywidth4, Path=ActualWidth}"

So that when the hidden dummy grid column size changes it will get reflect in gridview column size also.

Answer 3

Try this code instead,

  private void Window_SizeChanged(object sender, SizeChangedEventArgs e)
    {
        double remainingSpace = mylistviewname.ActualWidth;

        if (remainingSpace > 0)
        {

            (mylistviewname.View as GridView).Columns[1].Width = Math.Ceiling(remainingSpace / 3);
            (mylistviewname.View as GridView).Columns[2].Width = Math.Ceiling(remainingSpace / 3);
            (mylistviewname.View as GridView).Columns[3].Width = Math.Ceiling(remainingSpace / 3);
        }
    }

Here i user SizeChanged event so when the windows size change this function is triggered and update the width of the listviewheader. I have 3 listviewheaders so divided by 3 if you have more than 3 divide by appropriate value.

Answer 4

Set Width="Auto" on your GridViewColumns. However, due to virtualization you may encounter some problems with auto-sizing.

See this question.

So, long-story-short, if you want accurate auto-sizing of columns you'll need to recalculate your widths when the visible data changes, due to virtualization.

Answer 5

I'd like to present an another approach in order to size each column with the largest element width. Do this following on each list view item with the help of a loop.

No need to change size after a re-size window event.

Leaves UnitWidth as the constant font width size.

You can also define a delegate to the SourceUpdated event.

GridView gv = (myListView.View as GridView);
if (titleLen < c.Title.Length)
{
    titleLen = c.Title.Length;
    gv.Columns[0].Width = titleLen * UnitWidth;
}
if (cssLen < c.CSSName.Length)
{
    cssLen = c.CSSName.Length;
    gv.Columns[1].Width = cssLen * UnitWidth;
}
if (valueLen < c.Value.Length)
{
    valueLen = c.Value.Length;
    gv.Columns[2].Width = valueLen * UnitWidth;
}

Answer 6

First set the name in the column header like so:

<GridViewColumn Header="Description" Width="350" x:Name="lvhDescription"/>

And then on resize modify width.

Private Sub winMain_SizeChanged(sender As Object, e As SizeChangedEventArgs) Handles Me.SizeChanged


    If Me.IsLoaded = False Then Exit Sub

    lvhDescription.Width = e.NewSize.Width - 665


End Sub