本文整理汇总了C#中IQueryable.WhereFilter方法的典型用法代码示例。如果您正苦于以下问题：C# IQueryable.WhereFilter方法的具体用法？C# IQueryable.WhereFilter怎么用？C# IQueryable.WhereFilter使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IQueryable的用法示例。
在下文中一共展示了IQueryable.WhereFilter方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: FilterQueryable
private IQueryable FilterQueryable( IQueryable queryable )
{
// Filters a queryable to match this Group's clause.
// This method does not apply the AutoFilter clauses or the FilterRow clauses.
// It is the DataGridVirtualizingQueryableCollectionViewGroupRoot's job to do so on the
// base queryable used as a base for all other queryables.
if( queryable == null )
throw new ArgumentNullException( "queryable" );
int level = this.Level;
DataGridVirtualizingCollectionViewBase collectionView = this.GetCollectionView();
ObservableCollection<GroupDescription> groupDescriptions = collectionView.GroupDescriptions;
Debug.Assert( ( groupDescriptions != null ) && ( level < groupDescriptions.Count ) );
DataGridGroupDescription groupBy = groupDescriptions[ level ] as DataGridGroupDescription;
Debug.Assert( groupBy != null );
ParameterExpression sharedParameterExpression = queryable.CreateParameterExpression();
Expression expression = queryable.CreateEqualExpression( sharedParameterExpression, groupBy.PropertyName, this.Name );
return queryable.WhereFilter( sharedParameterExpression, expression );
}