示例#1
0
        protected override Size MeasureOverride(Size availableSize)
        {
            Panel panel = this.GroupLevelIndicatorPaneHost;

            if (panel != null)
            {
                DataGridContext dataGridContext = DataGridControl.GetDataGridContext(this);

                if (dataGridContext != null)
                {
                    if (this.GroupLevelIndicatorPaneNeedsRefresh)
                    {
                        //clear all the panel's children!
                        panel.Children.Clear();

                        DataGridContext previousContext        = dataGridContext;
                        DataGridContext runningDataGridContext = dataGridContext.ParentDataGridContext;

                        while (runningDataGridContext != null)
                        {
                            //create a GroupLevelIndicator to create indentation between the GLIPs
                            FrameworkElement newGroupMargin = null;
                            newGroupMargin             = new DetailIndicator();
                            newGroupMargin.DataContext = dataGridContext;

                            object bindingSource = dataGridContext.GetDefaultDetailConfigurationForContext();
                            if (bindingSource == null)
                            {
                                bindingSource = dataGridContext.SourceDetailConfiguration;
                            }

                            //Bind the GroupLevelIndicator`s style to the running DataGridContext`s GroupLevelIndicatorStyle.
                            Binding groupLevelIndicatorStyleBinding = new Binding();
                            groupLevelIndicatorStyleBinding.Path   = new PropertyPath(DetailConfiguration.DetailIndicatorStyleProperty);
                            groupLevelIndicatorStyleBinding.Source = bindingSource;
                            newGroupMargin.SetBinding(StyleProperty, groupLevelIndicatorStyleBinding);

                            //insert the Spacer GroupLevelIndicator in the panel
                            panel.Children.Insert(0, newGroupMargin);

                            //then create the GLIP for the running DataGridContext
                            GroupLevelIndicatorPane newSubGLIP = new GroupLevelIndicatorPane();
                            DataGridControl.SetDataGridContext(newSubGLIP, runningDataGridContext);
                            newSubGLIP.SetIsLeaf(false);
                            GroupLevelIndicatorPane.SetGroupLevel(newSubGLIP, -1);

                            //and insert it in the panel.
                            panel.Children.Insert(0, newSubGLIP);

                            previousContext        = runningDataGridContext;
                            runningDataGridContext = runningDataGridContext.ParentDataGridContext;
                        } //end of the loop to cycle through the parent contexts.
                    }     // end if GroupLevelIndicatorPaneNeedsRefresh
                }         // end if dataGridContext != null
            }             //end if panel is not null

            return(base.MeasureOverride(availableSize));
        }
    protected override Size MeasureOverride( Size availableSize )
    {
      var panel = this.GroupLevelIndicatorPaneHost;
      if( panel == null )
        return base.MeasureOverride( availableSize );

      var dataGridContext = DataGridControl.GetDataGridContext( this );
      if( ( dataGridContext == null ) || !this.GroupLevelIndicatorPaneNeedsRefresh )
        return base.MeasureOverride( availableSize );

      //clear all the panel's children!
      panel.Children.Clear();

      var previousContext = dataGridContext;
      var runningDataGridContext = dataGridContext.ParentDataGridContext;

      while( runningDataGridContext != null )
      {
        //create a GroupLevelIndicator to create indentation between the GLIPs
        FrameworkElement newGroupMargin = new DetailIndicator();
        newGroupMargin.DataContext = dataGridContext;

        object bindingSource = dataGridContext.GetDefaultDetailConfigurationForContext();
        if( bindingSource == null )
        {
          bindingSource = dataGridContext.SourceDetailConfiguration;
        }

        //Bind the GroupLevelIndicator`s style to the running DataGridContext`s GroupLevelIndicatorStyle.
        var groupLevelIndicatorStyleBinding = new Binding();
        groupLevelIndicatorStyleBinding.Path = new PropertyPath( DetailConfiguration.DetailIndicatorStyleProperty );
        groupLevelIndicatorStyleBinding.Source = bindingSource;
        newGroupMargin.SetBinding( StyleProperty, groupLevelIndicatorStyleBinding );

        //insert the Spacer GroupLevelIndicator in the panel
        panel.Children.Insert( 0, newGroupMargin );

        if( !runningDataGridContext.AreDetailsFlatten )
        {
          //then create the GLIP for the running DataGridContext
          var newSubGLIP = new GroupLevelIndicatorPane();
          DataGridControl.SetDataGridContext( newSubGLIP, runningDataGridContext );
          newSubGLIP.SetIsLeaf( false );
          GroupLevelIndicatorPane.SetGroupLevel( newSubGLIP, -1 );

          //and insert it in the panel.
          panel.Children.Insert( 0, newSubGLIP );
        }

        previousContext = runningDataGridContext;
        runningDataGridContext = runningDataGridContext.ParentDataGridContext;
      }

      return base.MeasureOverride( availableSize );
    }
    protected override Size MeasureOverride( Size availableSize )
    {
      Panel panel = this.GroupLevelIndicatorPaneHost;

      if( panel != null )
      {
        DataGridContext dataGridContext = DataGridControl.GetDataGridContext( this );

        if( dataGridContext != null )
        {
          if( this.GroupLevelIndicatorPaneNeedsRefresh )
          {
            //clear all the panel's children!
            panel.Children.Clear();

            DataGridContext previousContext = dataGridContext;
            DataGridContext runningDataGridContext = dataGridContext.ParentDataGridContext;

            while( runningDataGridContext != null )
            {
              //create a GroupLevelIndicator to create indentation between the GLIPs
              FrameworkElement newGroupMargin = null;
              newGroupMargin = new DetailIndicator();
              newGroupMargin.DataContext = dataGridContext;

              object bindingSource = dataGridContext.GetDefaultDetailConfigurationForContext();
              if( bindingSource == null )
                bindingSource = dataGridContext.SourceDetailConfiguration;

              //Bind the GroupLevelIndicator`s style to the running DataGridContext`s GroupLevelIndicatorStyle.
              Binding groupLevelIndicatorStyleBinding = new Binding();
              groupLevelIndicatorStyleBinding.Path = new PropertyPath( DetailConfiguration.DetailIndicatorStyleProperty );
              groupLevelIndicatorStyleBinding.Source = bindingSource;
              newGroupMargin.SetBinding( StyleProperty, groupLevelIndicatorStyleBinding );

              //insert the Spacer GroupLevelIndicator in the panel
              panel.Children.Insert( 0, newGroupMargin );

              //then create the GLIP for the running DataGridContext
              GroupLevelIndicatorPane newSubGLIP = new GroupLevelIndicatorPane();
              DataGridControl.SetDataGridContext( newSubGLIP, runningDataGridContext );
              newSubGLIP.SetIsLeaf( false );
              GroupLevelIndicatorPane.SetGroupLevel( newSubGLIP, -1 );

              //and insert it in the panel.
              panel.Children.Insert( 0, newSubGLIP );

              previousContext = runningDataGridContext;
              runningDataGridContext = runningDataGridContext.ParentDataGridContext;
            } //end of the loop to cycle through the parent contexts.
          } // end if GroupLevelIndicatorPaneNeedsRefresh
        } // end if dataGridContext != null
      } //end if panel is not null

      return base.MeasureOverride( availableSize );
    }