CODEWITHSUNDEEP
wpfdata-bindinggriddatatemplateitemscontrol
Giuseppe Panzuto
Giuseppe Panzuto

Reputation: 95

WPF Bind Grid.Column Property

I need to set Grid.Column property of an item by a converter. this is my xaml :

<ItemsControl.ItemTemplate>
    <DataTemplate>
        <TextBlock Text="{Binding Periodo.Inizio}">
            <Grid.Column>
                <MultiBinding Converter="{StaticResource ItemColumnSetter}">
                    <Binding RelativeSource="{RelativeSource Self}" />
                    <Binding RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=local:Timeline}" Path="StartDate" />
                    <Binding RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=local:Timeline}" Path="EndDate" />
                    <Binding Path="Periodo.Inizio" />
                </MultiBinding>
            </Grid.Column>
        </TextBlock>
    </DataTemplate>
</ItemsControl.ItemTemplate>

But don't work. I'm sure that the converter work well...

Upvotes: 1

Views: 2383

Answers (1)

brunnerh
brunnerh

Reputation: 184296

Your TextBlock will be wrapped in another control of some sort, that means any Grid.XXX properties will be disregarded. To apply those properly you need to do the binding in the ItemsControl.ItemContainerStyle.

Should be something like this:

<ItemsControl.ItemContainerStyle>
    <Style>
        <Setter Property="Grid.Column">
            <Setter.Value>
                <MultiBinding Converter="{StaticResource ItemColumnSetter}">
                    <Binding RelativeSource="{RelativeSource Self}" />
                    <Binding RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=local:Timeline}" Path="StartDate" />
                    <Binding RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=local:Timeline}" Path="EndDate" />
                    <Binding Path="Periodo.Inizio" />
                </MultiBinding>
            </Setter.Value>
        </Setter>
    </Style>
</ItemsControl.ItemContainerStyle>

Upvotes: 4

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