Infragistics XamDataGrid Group通過在WPF中加載

Question

如何從Infragistics中爲XamDataGrid的給定屬性設置Group By on Load，並使該視圖不會摺疊並摺疊組禁用？ 如果這是可能的，我會知道我怎麼可以隱藏組按小按鈕。

我的環境是WPF和C＃。

Answer 1

試試這個，

在XAML，

<igDP:XamDataGrid x:Name="xdgSample" DataSource="{Binding SampleCollection}" InitializeRecord="xdgSample_InitializeRecord"> 
           <igDP:XamDataGrid.FieldLayouts> 
            <igDP:FieldLayout>  
             <igDP:Field Name="field1" Label="Field1"/> 
             <igDP:Field Name="field2" Label="Field2"/> 
             <igDP:Field Name="field3" Label="Field3"/> 
             <igDP:Field Name="field4" Label="Field4"/> 
             <igDP:Field Name="field5" Label="Field5"/>         
            </igDP:FieldLayout> 
           </igDP:XamDataGrid.FieldLayouts> 
           <igDP:XamDataGrid.FieldLayoutSettings> 
            <igDP:FieldLayoutSettings AllowFieldMoving="No" 
                 AllowDelete="False" 
                 AutoGenerateFields="False" 
                 AutoFitMode="ExtendLastField" 
                 SelectionTypeRecord="Single" 
                 FilterUIType="LabelIcons" 
          GroupByExpansionIndicatorVisibility="Collapsed"> 
            </igDP:FieldLayoutSettings> 
           </igDP:XamDataGrid.FieldLayoutSettings> 
          </igDP:XamDataGrid> 

在代碼隱藏，

Private ObservableCollection<SampleBO> sampleCollection; 

Public ObservableCollection<SampleBO> SampleCollection 
{ 
    get 
    { 
     return this.sampleCollection; 
    } 
} 

你可以把下面的代碼加載和分組在窗口已加載事件或構造數據，

this.sampleCollection = your collection/List; 
this.OnPropertyChange("SampleCollection"); 

this.xdgSample.FieldLayouts[0].SortedFields.Add(new FieldSortDescription 
         { 
          IsGroupBy = true, 
          Field = this.xamInputList.FieldLayouts[0].Fields["field2"], 
          Direction = System.ComponentModel.ListSortDirection.Ascending 
         }); 

         this.xdgSample.FieldLayoutSettings.HeaderPlacement = HeaderPlacement.OnTopOnly; 
         this.xdgSample.FieldLayoutSettings.HeaderPlacementInGroupBy = HeaderPlacementInGroupBy.WithDataRecords; 

另外，對於擴展組，使用下面的事件，它最初是爲了擴展組。

private void xdgSample_InitializeRecord(object sender, Infragistics.Windows.DataPresenter.Events.InitializeRecordEventArgs e)  
{  
if (e.Record.NestingDepth == 0)  
{  
    e.Record.IsExpanded = true;  
}  
}