>>>>Hi,
>>>>
>>>>in XAML is there a way to add a row of totals to the bottom of a datagrid?
>>>>
>>>>For example I want something like this:
>>>>
>>>>

Invoice #   Invoice Amount
>>>>1234        100.00
>>>>1235        150.00
>>>>2           250.00

>>>>
>>>>where 2 is the count of invoices and 250.00 is the total of the Invoice Amount column.
>>>
>>>I don't think there's an easy way of doing this, certainly not in XAML. If the row content is static (ie not adding, deleting or editing) then it's not too difficult - otherwise, unless you have very strong reasons for doing so, I'd suggest simply showing those values in textblocks below the grid (I think this came up a while back?).
>>>
>>>Alternatively you could look for a third-party grid with this ability - I think DevExpress handle it ?
>>
>>It is on a grid where items can be added, edited and deleted (albeit the editing is done on another tab). If I show them in textblocks below the grid is it easy to change their width and position if somebody rearranges the grid's columns (position and width)?
>
>The sizing is easy enough:

    <StackPanel>
>        <DataGrid CanUserResizeColumns="True" AutoGenerateColumns="True">
>            <DataGrid.Columns>
>                <DataGridTextColumn Header="Column1" x:Name="Column1" Width="100"></DataGridTextColumn>
>                <DataGridTextColumn  Header="Column2" x:Name="Column2" Width="200"></DataGridTextColumn>
>                <DataGridTextColumn  Header="Column3" x:Name="Column3" Width="100"></DataGridTextColumn>
>            </DataGrid.Columns>
>        </DataGrid>
>        <StackPanel Orientation="Horizontal">
>            <TextBlock Background="Red"  Width="{Binding ElementName=Column1,Path=ActualWidth}"></TextBlock>
>            <TextBlock Background="Yellow" Width="{Binding ElementName=Column2,Path=ActualWidth}"></TextBlock>
>            <TextBlock Background="Green"  Width="{Binding ElementName=Column3,Path=ActualWidth}"></TextBlock>
>        </StackPanel>
>    </StackPanel>

but if the user is allowed to change the column order then it would be more difficult (not even sure it's possible). One approach *might* be to use a Grid instead of the horizontal StackPanel and somehow bind the Grid column used by each TextBlock to the Column order of the DataGrid.
>
>Don't suppose you could consider showing the totals in the header instead of a 'footer' ?

hmmm... totals in the header might take a bit of getting used to.

I guess I can define the grid so he users cannot change column order? If so that might at least be a quick way to get this working.

I've found this https://wpfextendeddatagrid.codeplex.com/ which looks like it might do the trick. I'll try it out this week. I would buy a grid like devexpress or telerik's but I've gone bust on this project, what with the coding taking so much longer than I anticipated and having to pay OakLeaf for mentoring services to get me past some hurdles.