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Thomas
95
Multiple SummaryDefinitions with different Converters
posted

Hi,

I've got a XamDataGrid with two Summary Columns (two SummaryDefinitions) and tried to create a SummaryResultPresenter for each of them. Both of them get a key so they aren't assigend to every SummaryResultResult per default.

The problem is that I can't figure out where to use this keys? I can't set it on the SummaryDefinition and applying it on the editor on the fields won't work either.

Definition of the Styles:

<igDP:XamDataGrid.Resources>
    <Style TargetType="{x:Type igDP:SummaryResultPresenter}" x:Key="PercentSummaryStyle">
            <Setter Property="Control.Background" Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=SummaryResult.Value,
        Converter={StaticResource colorConverter1}}"/>
    </Style>
    <Style TargetType="{x:Type igDP:SummaryResultPresenter}" x:Key="CountSummaryStyle">
            <Setter Property="Control.Background" Value="{Binding RelativeSource={x:Static RelativeSource.Self}, Path=SummaryResult.Value,
        Converter={StaticResource colorConverter2}}"/>
    </Style>
</igDP:XamDataGrid.Resources>

 

Definition of the Summary:

<igDP:FieldLayout.SummaryDefinitions>
    <igDP:SummaryDefinition Key="idp_percent" SourceFieldName="Percent" Calculator="Sum" />  <igDP:SummaryDefinition Key="idp_count" SourceFieldName="Count" Calculator="Sum" />
</igDP:FieldLayout.SummaryDefinitions>

Thanks in advance,
Thomas

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  • 9836
    posted

    Hi Thomas,

    Currently there is no way to set different SummaryResultPresenter styles for each of the fields - so you would need to use only one style. In order to obtain the name of the field associated with the summary result you can use the SummaryResult.SourceField property. Attached is a simple sample so you can see my implementation.

    <Grid.Resources>
                <local:MultiColorConverter x:Key="multiColorConverter"/>
    </Grid.Resources>

    <Style TargetType="{x:Type igDP:SummaryResultPresenter}">
                        <Setter Property="Background">
                            <Setter.Value>
                                <MultiBinding Converter="{StaticResource multiColorConverter}">
                                    <Binding Path="SummaryResult" RelativeSource="{RelativeSource Self}"/>
                                    <Binding Path="SummaryResult.Value" RelativeSource="{RelativeSource Self}"/>
                                </MultiBinding>
                            </Setter.Value>
                        </Setter>
    </Style> 

    public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
            {
                SummaryResult result = values[0] as SummaryResult;
                string resultName = (result.SourceField as Field).Name;

                int resultValue = 0;
                bool b = int.TryParse(values[1].ToString(), out resultValue);

                if (resultName == "MyProperty1")
                {
                    // return brush object based on the resultValue
                }
                else if (resultName == "MyProperty2")
                {
                    // return brush object based on the resultValue
                }
                return Binding.DoNothing;
    }

    Let me know if this would work in your scenario and if you have any questions.

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