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Jean-Sebastien
94
Headers gone when using ExpansionIndicatorDisplayMode
posted

Hello,

 

I have a grid with nested records and I would like to display the expansion indicator only if there is subrecords. So I used the following option : ExpansionIndicatorDisplayMode="CheckOnDisplay". 

Problem : when I set the indicator, headers are gone. If I do not so, headers are well displayed.

with ExpansionIndicatorDisplayMode="CheckOnDisplay" :

 

without the option : 

 

Do you any idea to slove the problem?

 

Thank you

Guillaume

Parents
  • 69686
    posted

    Hello Guillaume,

    This looks like a styling issue as from what I can see from the screenshots, the LabelPresenters are gone, however the header record is there.  How are you setting the ExpansionIndicatorDisplayMode property? Are you using some style?

  • 94
    posted in reply to John Doe

    Here is the xaml code I uses. It is more or less the same than the one used to display a data grid as a tree

     

            <igDP:XamDataGrid Name="xamDtaGridPlanFi" GroupByAreaLocation="None" DataSource="{Binding PlanFi.Nodes}" FieldChooserOpening="xamDtaGridPlanFi_FieldChooserOpening">

                <igDP:XamDataGrid.Resources>

                    <converters:XamConverter x:Key="conv"/>

                    <Style x:Key="{x:Type igDP:FieldChooser}" TargetType="{x:Type igDP:FieldChooser}" BasedOn="{StaticResource {x:Type igDP:FieldChooser}}">

                        <Setter Property="FieldDisplayOrder" Value="SameAsDataPresenter" />

                    </Style>

                    <Style TargetType="{x:Type igDP:RecordPresenter}">

                        <Setter Property="IsExpanded" Value="True"/>

                    </Style>

                    <Style TargetType="{x:Type igDP:DataRecordPresenter}" x:Key="nestedEXPStyle">

                        <Setter Property="RenderTransform">

                            <Setter.Value>

                                <TranslateTransform X="{Binding Path=NestingDepth, Converter={StaticResource conv}}" Y="0"/>

                            </Setter.Value>

                        </Setter>

                    </Style>

     

                    <Style TargetType="{x:Type igDP:CellValuePresenter}" x:Key="nestedCVPStyle">

                        <Setter Property="Margin" Value="{Binding Path=NestingDepth, ConverterParameter=cvp, Converter={StaticResource conv}}" />

                    </Style>

                    <Style TargetType="{x:Type igDP:LabelPresenter}">

                        <EventSetter Event="SizeChanged"  Handler="OnLabelPresenterSizeChanged" />

                    </Style>

                </igDP:XamDataGrid.Resources>

                <igDP:XamDataGrid.FieldLayouts>

     

                    <igDP:FieldLayout Key="master">

                        <igDP:Field Name="Label">

                            <igDP:Field.Settings>

                                <igDP:FieldSettings CellWidth="260" />

                            </igDP:Field.Settings>

                        </igDP:Field>

                        <igDP:Field Name="Qty"/>

                        <igDP:Field Name="Value"/>

                        <igDP:Field Name="Nodes"/>

                        <igDP:FieldLayout.Settings>

                            <igDP:FieldLayoutSettings HeaderPrefixAreaDisplayMode="FieldChooserButton" HeaderPlacement="OnTopOnly" HeaderPlacementInGroupBy="OnTopOnly"/>

                        </igDP:FieldLayout.Settings>

                    </igDP:FieldLayout>

     

                    <igDP:FieldLayout Key="nested">

                        <igDP:Field Name="Label">

                            <igDP:Field.Settings>

                                <igDP:FieldSettings CellValuePresenterStyle="{StaticResource nestedCVPStyle}"/>

                            </igDP:Field.Settings>

                        </igDP:Field>

                        <igDP:Field Name="Qty"/>

                        <igDP:Field Name="Value"/>

                        <igDP:Field Name="Nodes"/>

                        <igDP:FieldLayout.FieldSettings>

                            <igDP:FieldSettings AllowResize="False"/>

                        </igDP:FieldLayout.FieldSettings>

                        <igDP:FieldLayout.Settings>

                            <igDP:FieldLayoutSettings ExpansionIndicatorDisplayMode="CheckOnDisplay" HighlightAlternateRecords="True" DataRecordPresenterStyle="{StaticResource nestedEXPStyle}" LabelLocation="Hidden"/>

                        </igDP:FieldLayout.Settings>

                    </igDP:FieldLayout>

     

                </igDP:XamDataGrid.FieldLayouts>

     

                <igDP:XamDataGrid.FieldLayoutSettings>

                    <igDP:FieldLayoutSettings AutoGenerateFields="False"/>

                </igDP:XamDataGrid.FieldLayoutSettings>

                <igDP:XamDataGrid.FieldSettings>

                    <igDP:FieldSettings AllowEdit="False" CellClickAction="SelectRecord"/>

                </igDP:XamDataGrid.FieldSettings>

            </igDP:XamDataGrid>

     

     

    Guillaume

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