Telerik.Web.Data.GroupDescriptorBase
Servers as a base class for group descriptors. Holds P:Telerik.Web.Data.GroupDescriptorBase.SortDirection that will be used to sort the groups created from the descriptor.
Inheritance Hierarchy
- System.Object
- Telerik.Web.Data.DescriptorBase : INotifyPropertyChanged
- Telerik.Web.Data.GroupDescriptorBase : IGroupDescriptor
Properties
SortDirection Nullable1`
Gets or sets the sort direction for this descriptor. If the value is null no sorting will be applied.
Methods
CreateGroupKeyExpression
Creates a group expression by delegating its creation to , if is , otherwise throws
Parameters
itemExpression System.Linq.Expressions.Expression
The instance expression, which will be used for grouping.
Returns
System.Linq.Expressions.Expression Expression that creates group key for the given item.
CreateGroupKeyExpression
Creates a group expression that returns the grouping key for each item in a collection.
Parameters
parameterExpression System.Linq.Expressions.ParameterExpression
The parameter expression, which will be used for grouping.
Returns
System.Linq.Expressions.Expression Expression that creates group key for the given item.
CreateGroupSortExpression
Creates sorting key expression that sorts the groups created from this descriptor using the group's key.
Parameters
groupingExpression System.Linq.Expressions.Expression
The grouping expression, which represents the grouped items created from the .
Returns
System.Linq.Expressions.Expression Expression that represents the sort criteria for each group.
CycleSortDirection
Changes the to the next logical value.
Returns
System.Void
OnPropertyChanged
Raises the event.
Parameters
args System.ComponentModel.PropertyChangedEventArgs
The instance containing the event data.
Returns
System.Void
OnPropertyChanged
Calls creating a new instance of with given .
Parameters
propertyName System.String
Name of the property that is changed.
Returns
System.Void