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问题:

I'm trying to swap out a WPF datagrid to a xceed\Extended WPF Toolkit DataGridControl.

I need to react to the click event in a checkbox column ... to summarizing a number of other columns.

In the existing datagrid I have a checkbox column, that is bound to a Observable Collection and I call a method if any check box is checked\unchecked. The xaml I use for this, which works, is as such:

<DataGridTemplateColumn Width="40" Header="Inc">
<DataGridTemplateColumn.CellTemplate>
    <DataTemplate>
        <CheckBox
            IsChecked="{Binding Include ,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
            Checked="CheckBoxUpdated" Unchecked="CheckBoxUpdated" />
    </DataTemplate>
</DataGridTemplateColumn.CellTemplate>

For the xceed datagridcontrol I started with the simple syntax below, and the the initial binding seemed OK, but I don't have a click event to respond to:

<xcdg:Column   FieldName="Include" Title="Inc" />

Now I tried to do something similar to the original code using the xceed datagridcontrol, as such:

<xcdg:Column   FieldName="Include" Title="Inc" Width="*" >
<xcdg:Column.CellContentTemplate>
    <DataTemplate>
        <CheckBox IsChecked="{Binding Include ,UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" Click="CheckBoxUpdated"/>
    </DataTemplate>
</xcdg:Column.CellContentTemplate>

But I don't think this is the correct syntax. It seems the binding is not working ... based on the initial values of the collection.

(note code behind sets this items source as such dg.ItemsSource = collectionView;)

Any ideas on how to setup a checkbox DataTemplate and the binding correctly?

Thanks

回答1:

I just found a post at xceed forums that gave me the syntax I needed, that to set the FieldName=".", not FieldName="Include" . My guess is that having FieldName="Include" and the "{Binding Include ..." was confusing the binding.

<xcdg:Column   FieldName="." Title="Inc" Width="*" >
 <xcdg:Column.CellContentTemplate>
  <DataTemplate>
    <CheckBox IsChecked="{Binding Include ,UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" Click="CheckBoxUpdated"/>
</DataTemplate>
</xcdg:Column.CellContentTemplate>

answered Nov 25 '13 at 22:00

Gern Blanston

19.7k164362

this works! path should be ., and full path in template. – Lei Yang Jun 15 '16 at 15:32
This only works if you are binding to a single field that you need to do this trick with. Otherwise it will only let you bind one column to FieldName ="." – markokstate Feb 15 '17 at 22:11

add a comment |

Your solution to your question wasn't working for me, what did work however:

Either

<xcdg:Column ...

if the type is boolean it will automaticly create a checkbox for it, you'll have to click 3 times though (column edit -> (un)check -> column out) which can be annoying.

<xcdg:Column FieldName="ckb1" DisplayMemberBinding="{Binding Path=IsThisChecked,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" >
                    <xcdg:Column.CellContentTemplate>
                        <DataTemplate>
                            <CheckBox IsChecked="{xcdg:CellEditorBinding NotifyOnSourceUpdated=True}" HorizontalAlignment="Center" />
                        </DataTemplate>
                    </xcdg:Column.CellContentTemplate>
                </xcdg:Column>

Which doesn't need all the clicking

answered Sep 1 '14 at 14:08

xtds

2,01621510

Unfortunately, Xceed decided to leave a line of code in their DataGridCheckBox.OnApplyTemplate method: this.ChildCheckBox.Background = (Brush) new SolidColorBrush(Colors.Blue); If you like your check boxes with arbitrary blue backgrounds that aren't overrideable, go for it! :) – NathanAldenSr Oct 5 '16 at 0:20
fixed in version 6.1.16565.14160, see xceed.com/release-notes – Cauly Nov 29 '16 at 2:20
Did they Obsolete 'DisplayMemberBinding'? I only see DisplayMemberBindingInfo which I cannot bind to. – markokstate Feb 15 '17 at 22:15

add a comment |

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