特定DataGrid单元格跨多列 [英] Make specific of DataGrid cell span multiple columns

问题描述

我引用了这个

我的自定义 DataGridCellsPanel.ArrangeOverride ：

 保护覆盖大小ArrangeOverride（Size arrangeSize）
 {
 var firstCell = Children [0]; 
 firstCell.SetValue（Panel.Horizo​​ntalAlignmentProperty，Horizo​​ntalAlignment.Left）; 
 firstCell.Arrange（new Rect（arrangeSize））; （int i = 1; i< Children.Count; i ++）
 
 
 {
 var remainingCell = Children [i]; 
 remainingCell.Arrange（new Rect（0,0,0,0））; 
} 
 return arrangeSize; 
} 
  

我的 DataGridRow.Template ：

 < Style x：Key =SpanRowStyleTargetType =DataGridRow> 
< Setter Property =Template> 
< Setter.Value> 
< ControlTemplate TargetType ={x：Type DataGridRow}> 
< Border> 
< DataGridCellsPresenter前景=黑色> 
< DataGridCellsPresenter.ItemsPanel> 
< ItemsPanelTemplate> 
< controls：DataGridSpannedCellPanel /> 
< / ItemsPanelTemplate> 
< /DataGridCellsPresenter.ItemsPanel> 
< / DataGridCellsPresenter> 
< / Border> 
< / ControlTemplate> 
< /Setter.Value> 
< / Setter> 
< / Style> 
  

请帮助。

解决方案

发现问题。 ：）

将ColumnWidth设置为Auto是罪魁祸首。将其设置为静态值正常。

I referred this Answer but Its not working. Column still expands to the Row content. Column size is somehow gets updated when cell is re-arranged

Screenshot:

My custom DataGridCellsPanel.ArrangeOverride:

protected override Size ArrangeOverride(Size arrangeSize)
{
    var firstCell = Children[0];
    firstCell.SetValue(Panel.HorizontalAlignmentProperty, HorizontalAlignment.Left);
    firstCell.Arrange(new Rect(arrangeSize));

    for (int i = 1; i < Children.Count; i++)
    {
        var remainingCell = Children[i];
        remainingCell.Arrange(new Rect(0,0,0,0));
    }
    return arrangeSize;
}

My DataGridRow.Template:

<Style x:Key="SpanRowStyle" TargetType="DataGridRow">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type DataGridRow}">
                <Border>
                    <DataGridCellsPresenter Foreground="Black">
                        <DataGridCellsPresenter.ItemsPanel>
                            <ItemsPanelTemplate>
                                <controls:DataGridSpannedCellPanel/>
                            </ItemsPanelTemplate>
                        </DataGridCellsPresenter.ItemsPanel>
                    </DataGridCellsPresenter>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

Please help.

解决方案

Found the issue. :)

Setting ColumnWidth to Auto was the culprit. setting it to static values worked fine.

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