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DataGrid with groupstyle shows errors #3236

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raytangRT opened this issue May 3, 2018 · 2 comments · Fixed by #3805
Closed

DataGrid with groupstyle shows errors #3236

raytangRT opened this issue May 3, 2018 · 2 comments · Fixed by #3805
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@punker76
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Bug
Milestone
2.0.0

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@raytangRT
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raytangRT commented May 3, 2018 •
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What steps will reproduce this issue?

DataGrid with groupstyle shows the following errors

Related Issue #2356

Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.DataGrid', AncestorLevel='1''. BindingExpression:Path=SelectionUnit; DataItem=null; target element is 'DataGridRow' (Name=''); target property is 'SelectionUnit' (type 'DataGridSelectionUnit')
Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.DataGrid', AncestorLevel='1''. BindingExpression:Path=AreRowDetailsFrozen; DataItem=null; target element is 'DataGridDetailsPresenter' (Name=''); target property is 'SelectiveScrollingOrientation' (type 'SelectiveScrollingOrientation')
Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.DataGrid', AncestorLevel='1''. BindingExpression:Path=HeadersVisibility; DataItem=null; target element is 'DataGridRowHeader' (Name=''); target property is 'Visibility' (type 'Visibility')

Expected outcome

No error shown

Repo

repo

Environment

  • MahApps.Metro v1.6.1
  • Windows OS Windows 7
  • Visual Studio 2013
  • .NET Framework 4.5
@punker76 punker76 self-assigned this May 3, 2018
@punker76 punker76 added the Bug label May 3, 2018
@lipchev
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lipchev commented Aug 22, 2019

Issue is still here in version 1.6.5. A workaround that I use is to set the selections manually:

            <DataGrid.RowStyle>
                <Style TargetType="{x:Type DataGridRow}" BasedOn="{StaticResource AzureDataGridRow}">
                    <Setter Property="mah:DataGridRowHelper.SelectionUnit"
                            Value="{x:Static DataGridSelectionUnit.FullRow}" />
                </Style>
            </DataGrid.RowStyle>
            <DataGrid.CellStyle>
                <Style TargetType="{x:Type DataGridCell}" BasedOn="{StaticResource AzureDataGridCell}">
                    <Setter Property="mah:DataGridCellHelper.SelectionUnit"
                            Value="{x:Static DataGridSelectionUnit.FullRow}" />
                </Style>
            </DataGrid.CellStyle>

@punker76 punker76 added this to the 2.0.0 milestone May 21, 2020
punker76 added a commit that referenced this issue May 22, 2020
@punker76
(GH-3236) Search for ScrollViewer at NumericUpDown only when needed
2d52803
punker76 added a commit that referenced this issue May 22, 2020
@punker76
(GH-3236) DataGrid with GroupStyle
c493393 
- New style MahApps.Styles.ToggleButton.ExpanderHeader.Down.DataGrid.Group.Container
- New style MahApps.Styles.GroupItem.DataGrid.Group.Container
- Fix "Cannot find source for binding with reference..." errors
punker76 added a commit that referenced this issue May 22, 2020
@punker76
(GH-3236) Rename styles
ab4ad2e 
- MahApps.Styles.ToggleButton.ExpanderHeader.Down.DataGrid.GroupItem
- MahApps.Styles.GroupItem.DataGrid
@punker76 punker76 mentioned this issue May 22, 2020
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@raytangRT This is finally fixed now and will be available with v2.0

punker76 added a commit that referenced this issue Jun 7, 2020
@punker76
(GH-3840, GH-3236) Fix finally "Cannot find source for binding with r…
aa2a8ed 
…eference..." errors
punker76 added a commit that referenced this issue Jun 9, 2020
@punker76
(GH-3840, GH-3236) Fix finally "Cannot find source for binding with r…
8ce684b 
…eference..." errors
@JamesCorl JamesCorl mentioned this issue Sep 4, 2021
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Milestone
2.0.0
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Add DataGrid GroupStyle and fix grouping errors MahApps/MahApps.Metro
3 participants
@punker76 @lipchev @raytangRT