Class BaseExpandableListAdapter

Namespace

Android.Widget

Assembly

MASES.Netdroid.dll

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html

public class BaseExpandableListAdapter : JVMBridgeListener, IDynamicMetaObjectProvider, IJVMBridgeCore, IDisposable, IJVMBridgeBaseStatic, IJVMBridgeBase, IJVMBridgeDefinition, IExpandableListAdapter, IHeterogeneousExpandableList

Inheritance

object

DynamicObject

JVMBridgeBase

JVMBridgeBase<JVMBridgeListener>

JVMBridgeListener

BaseExpandableListAdapter

Implements

IDynamicMetaObjectProvider

IJVMBridgeCore

IDisposable

IJVMBridgeBaseStatic

IJVMBridgeBase

IJVMBridgeDefinition

IExpandableListAdapter

IHeterogeneousExpandableList

Derived

BaseExpandableListAdapterDirect

Inherited Members

JVMBridgeListener.AddEventHandler(string, EventHandler)

JVMBridgeListener.AddEventHandler<TDataClass>(string, EventHandler<CLRListenerEventArgs<TDataClass>>)

JVMBridgeListener.Dispose()

JVMBridgeListener.AutoInit

JVMBridgeListener.IsBridgeStatic

JVMBridgeListener.IsBridgeCloseable

JVMBridgeListener.IsBridgeListener

JVMBridgeBase<JVMBridgeListener>.SExecute(IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature(IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute(string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature(string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TReturn>(IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TReturn>(IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TReturn>(string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TReturn>(string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute(Type, IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature(Type, IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute(Type, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature(Type, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TNewClass, TReturn>(IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TNewClass, TReturn>(IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TNewClass, TReturn>(string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TNewClass, TReturn>(string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TReturn>(Type, IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TReturn>(Type, IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TReturn>(Type, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TReturn>(Type, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TNewClass, TReturn, TConverter>(IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TNewClass, TReturn, TConverter>(IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TNewClass, TReturn, TConverter>(string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TNewClass, TReturn, TConverter>(string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TReturn, TConverter>(Type, IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TReturn, TConverter>(Type, IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecute<TReturn, TConverter>(Type, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignature<TReturn, TConverter>(Type, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteArray<T>(IJavaType, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignatureArray<T>(IJavaType, string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteArray<T>(string, params object[])

JVMBridgeBase<JVMBridgeListener>.SExecuteWithSignatureArray<T>(string, string, params object[])

JVMBridgeBase<JVMBridgeListener>.SGetField(IJavaType, string)

JVMBridgeBase<JVMBridgeListener>.SGetField(string)

JVMBridgeBase<JVMBridgeListener>.SGetField<TReturn>(IJavaType, string)

JVMBridgeBase<JVMBridgeListener>.SGetField<TReturn>(string)

JVMBridgeBase<JVMBridgeListener>.SGetFieldArray<TReturn>(IJavaType, string)

JVMBridgeBase<JVMBridgeListener>.SGetFieldArray<TReturn>(string)

JVMBridgeBase<JVMBridgeListener>.SSetField(IJavaType, string, object)

JVMBridgeBase<JVMBridgeListener>.SSetField(string, object)

JVMBridgeBase<JVMBridgeListener>.SSetField<TValue>(IJavaType, string, TValue)

JVMBridgeBase<JVMBridgeListener>.SSetField<TValue>(string, TValue)

JVMBridgeBase<JVMBridgeListener>.IsAssignableFrom(string)

JVMBridgeBase<JVMBridgeListener>.IsAssignableFrom(IJavaType)

JVMBridgeBase<JVMBridgeListener>.IsAssignableFrom<T>()

JVMBridgeBase<JVMBridgeListener>.New(params object[])

JVMBridgeBase<JVMBridgeListener>.NewWithSignature(string, params object[])

JVMBridgeBase<JVMBridgeListener>.Execute<T>(params T[])

JVMBridgeBase<JVMBridgeListener>.DynBridgeClazz

JVMBridgeBase<JVMBridgeListener>.BridgeClazz

JVMBridgeBase.ClazzOf<TClass>(bool)

JVMBridgeBase.ClazzOf(string, bool)

JVMBridgeBase.RuntimeClassNameOf<T>()

JVMBridgeBase.ClassNameOf<T>()

JVMBridgeBase.ClassOf<T>()

JVMBridgeBase.WrapsDirect<TNewClass>(IJavaObject)

JVMBridgeBase.Wraps<TNewClass>(IJavaObject)

JVMBridgeBase.Wraps(Type, IJavaObject, string)

JVMBridgeBase.Wraps<TNewClass, TReturn>(IJavaObject)

JVMBridgeBase.Wraps<TReturn>(Type, IJavaObject, string)

JVMBridgeBase.Wraps<TNewClass, TReturn, TConverter>(IJavaObject)

JVMBridgeBase.Wraps<TReturn, TConverter>(Type, IJavaObject)

JVMBridgeBase.MonitorEnter()

JVMBridgeBase.MonitorExit()

JVMBridgeBase.IsInstanceOf(string)

JVMBridgeBase.IsInstanceOf(IJavaType)

JVMBridgeBase.IsInstanceOf<T>()

JVMBridgeBase.RuntimeIsInstanceOf<T>()

JVMBridgeBase.CastTo<TNewClass>()

JVMBridgeBase.CastDirect<TNewClass>()

JVMBridgeBase.ToString()

JVMBridgeBase.Equals(object)

JVMBridgeBase.GetHashCode()

JVMBridgeBase.Notify()

JVMBridgeBase.NotifyAll()

JVMBridgeBase.Wait()

JVMBridgeBase.Wait(long)

JVMBridgeBase.Wait(long, int)

JVMBridgeBase.IExecute(string, params object[])

JVMBridgeBase.IExecuteWithSignature(string, string, params object[])

JVMBridgeBase.IExecute<TReturn>(string, params object[])

JVMBridgeBase.IExecuteWithSignature<TReturn>(string, string, params object[])

JVMBridgeBase.IExecute<TNewClass, TReturn>(string, params object[])

JVMBridgeBase.IExecuteWithSignature<TNewClass, TReturn>(string, string, params object[])

JVMBridgeBase.IExecute<TNewClass, TReturn, TConverter>(string, params object[])

JVMBridgeBase.IExecuteWithSignature<TNewClass, TReturn, TConverter>(string, string, params object[])

JVMBridgeBase.IExecuteArray<T>(string, params object[])

JVMBridgeBase.IExecuteWithSignatureArray<T>(string, string, params object[])

JVMBridgeBase.IGetField(string)

JVMBridgeBase.IGetField<TReturn>(string)

JVMBridgeBase.IGetFieldArray<TReturn>(string)

JVMBridgeBase.ISetField(string, object)

JVMBridgeBase.ISetField<TValue>(string, TValue)

JVMBridgeBase.DynBridgeInstance

JVMBridgeBase.BridgeInstance

JVMBridgeBase.IsBridgeInterface

JVMBridgeBase.IsBridgeAbstract

DynamicObject.GetDynamicMemberNames()

DynamicObject.GetMetaObject(Expression)

DynamicObject.TryBinaryOperation(BinaryOperationBinder, object, out object)

DynamicObject.TryConvert(ConvertBinder, out object)

DynamicObject.TryCreateInstance(CreateInstanceBinder, object[], out object)

DynamicObject.TryDeleteIndex(DeleteIndexBinder, object[])

DynamicObject.TryDeleteMember(DeleteMemberBinder)

DynamicObject.TryGetIndex(GetIndexBinder, object[], out object)

DynamicObject.TryGetMember(GetMemberBinder, out object)

DynamicObject.TryInvoke(InvokeBinder, object[], out object)

DynamicObject.TryInvokeMember(InvokeMemberBinder, object[], out object)

DynamicObject.TrySetIndex(SetIndexBinder, object[], object)

DynamicObject.TrySetMember(SetMemberBinder, object)

DynamicObject.TryUnaryOperation(UnaryOperationBinder, out object)

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Extension Methods

JNetCoreExtensions.Class<TClass>(TClass)

Constructors

BaseExpandableListAdapter()

Default constructor: even if the corresponding Java class does not have one, it is mandatory for JCOBridge

public BaseExpandableListAdapter()

Properties

BridgeClassName

https://www.jcobridge.com/api-clr/html/P_MASES_JCOBridge_C2JBridge_JVMBridgeListener_BridgeClassName.htm

public override string BridgeClassName { get; }

Property Value

string

OnAreAllItemsEnabled

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#areAllItemsEnabled()

public Func<bool> OnAreAllItemsEnabled { get; set; }

Property Value

Func<bool>

Remarks

If OnAreAllItemsEnabled has a value it takes precedence over corresponding class method

OnGetChild

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChild(int,int)

public Func<int, int, object> OnGetChild { get; set; }

Property Value

Func<int, int, object>

Remarks

If OnGetChild has a value it takes precedence over corresponding class method

OnGetChildId

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChildId(int,int)

public Func<int, int, long> OnGetChildId { get; set; }

Property Value

Func<int, int, long>

Remarks

If OnGetChildId has a value it takes precedence over corresponding class method

OnGetChildType

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getChildType(int,int)

public Func<int, int, int> OnGetChildType { get; set; }

Property Value

Func<int, int, int>

Remarks

If OnGetChildType has a value it takes precedence over corresponding class method

OnGetChildTypeCount

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getChildTypeCount()

public Func<int> OnGetChildTypeCount { get; set; }

Property Value

Func<int>

Remarks

If OnGetChildTypeCount has a value it takes precedence over corresponding class method

OnGetChildView

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChildView(int,int,boolean,android.view.View,android.view.ViewGroup)

public Func<int, int, bool, View, ViewGroup, View> OnGetChildView { get; set; }

Property Value

Func<int, int, bool, View, ViewGroup, View>

Remarks

If OnGetChildView has a value it takes precedence over corresponding class method

OnGetChildrenCount

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChildrenCount(int)

public Func<int, int> OnGetChildrenCount { get; set; }

Property Value

Func<int, int>

Remarks

If OnGetChildrenCount has a value it takes precedence over corresponding class method

OnGetCombinedChildId

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getCombinedChildId(long,long)

public Func<long, long, long> OnGetCombinedChildId { get; set; }

Property Value

Func<long, long, long>

Remarks

If OnGetCombinedChildId has a value it takes precedence over corresponding class method

OnGetCombinedGroupId

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getCombinedGroupId(long)

public Func<long, long> OnGetCombinedGroupId { get; set; }

Property Value

Func<long, long>

Remarks

If OnGetCombinedGroupId has a value it takes precedence over corresponding class method

OnGetGroup

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroup(int)

public Func<int, object> OnGetGroup { get; set; }

Property Value

Func<int, object>

Remarks

If OnGetGroup has a value it takes precedence over corresponding class method

OnGetGroupCount

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroupCount()

public Func<int> OnGetGroupCount { get; set; }

Property Value

Func<int>

Remarks

If OnGetGroupCount has a value it takes precedence over corresponding class method

OnGetGroupId

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroupId(int)

public Func<int, long> OnGetGroupId { get; set; }

Property Value

Func<int, long>

Remarks

If OnGetGroupId has a value it takes precedence over corresponding class method

OnGetGroupType

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getGroupType(int)

public Func<int, int> OnGetGroupType { get; set; }

Property Value

Func<int, int>

Remarks

If OnGetGroupType has a value it takes precedence over corresponding class method

OnGetGroupTypeCount

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getGroupTypeCount()

public Func<int> OnGetGroupTypeCount { get; set; }

Property Value

Func<int>

Remarks

If OnGetGroupTypeCount has a value it takes precedence over corresponding class method

OnGetGroupView

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroupView(int,boolean,android.view.View,android.view.ViewGroup)

public Func<int, bool, View, ViewGroup, View> OnGetGroupView { get; set; }

Property Value

Func<int, bool, View, ViewGroup, View>

Remarks

If OnGetGroupView has a value it takes precedence over corresponding class method

OnHasStableIds

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#hasStableIds()

public Func<bool> OnHasStableIds { get; set; }

Property Value

Func<bool>

Remarks

If OnHasStableIds has a value it takes precedence over corresponding class method

OnIsChildSelectable

Handler for https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#isChildSelectable(int,int)

public Func<int, int, bool> OnIsChildSelectable { get; set; }

Property Value

Func<int, int, bool>

Remarks

If OnIsChildSelectable has a value it takes precedence over corresponding class method

OnIsEmpty

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#isEmpty()

public Func<bool> OnIsEmpty { get; set; }

Property Value

Func<bool>

Remarks

If OnIsEmpty has a value it takes precedence over corresponding class method

OnNotifyDataSetChanged

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#notifyDataSetChanged()

public Action OnNotifyDataSetChanged { get; set; }

Property Value

Action

Remarks

If OnNotifyDataSetChanged has a value it takes precedence over corresponding class method

OnNotifyDataSetInvalidated

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#notifyDataSetInvalidated()

public Action OnNotifyDataSetInvalidated { get; set; }

Property Value

Action

Remarks

If OnNotifyDataSetInvalidated has a value it takes precedence over corresponding class method

OnOnGroupCollapsed

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#onGroupCollapsed(int)

public Action<int> OnOnGroupCollapsed { get; set; }

Property Value

Action<int>

Remarks

If OnOnGroupCollapsed has a value it takes precedence over corresponding class method

OnOnGroupExpanded

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#onGroupExpanded(int)

public Action<int> OnOnGroupExpanded { get; set; }

Property Value

Action<int>

Remarks

If OnOnGroupExpanded has a value it takes precedence over corresponding class method

OnRegisterDataSetObserver

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#registerDataSetObserver(android.database.DataSetObserver)

public Action<DataSetObserver> OnRegisterDataSetObserver { get; set; }

Property Value

Action<DataSetObserver>

Remarks

If OnRegisterDataSetObserver has a value it takes precedence over corresponding class method

OnUnregisterDataSetObserver

Handler for https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#unregisterDataSetObserver(android.database.DataSetObserver)

public Action<DataSetObserver> OnUnregisterDataSetObserver { get; set; }

Property Value

Action<DataSetObserver>

Remarks

If OnUnregisterDataSetObserver has a value it takes precedence over corresponding class method

Methods

AreAllItemsEnabled()

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#areAllItemsEnabled()

public virtual bool AreAllItemsEnabled()

Returns

bool

bool

GetChild(int, int)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChild(int,int)

public virtual object GetChild(int arg0, int arg1)

Parameters

arg0 int

int

arg1 int

int

Returns

object

object

GetChildId(int, int)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChildId(int,int)

public virtual long GetChildId(int arg0, int arg1)

Parameters

arg0 int

int

arg1 int

int

Returns

long

long

GetChildType(int, int)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getChildType(int,int)

public virtual int GetChildType(int arg0, int arg1)

Parameters

arg0 int

int

arg1 int

int

Returns

int

int

GetChildTypeCount()

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getChildTypeCount()

public virtual int GetChildTypeCount()

Returns

int

int

GetChildView(int, int, bool, View, ViewGroup)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChildView(int,int,boolean,android.view.View,android.view.ViewGroup)

public virtual View GetChildView(int arg0, int arg1, bool arg2, View arg3, ViewGroup arg4)

Parameters

arg0 int

int

arg1 int

int

arg2 bool

bool

arg3 View

View

arg4 ViewGroup

ViewGroup

Returns

View

View

GetChildrenCount(int)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getChildrenCount(int)

public virtual int GetChildrenCount(int arg0)

Parameters

arg0 int

int

Returns

int

int

GetCombinedChildId(long, long)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getCombinedChildId(long,long)

public virtual long GetCombinedChildId(long arg0, long arg1)

Parameters

arg0 long

long

arg1 long

long

Returns

long

long

GetCombinedGroupId(long)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getCombinedGroupId(long)

public virtual long GetCombinedGroupId(long arg0)

Parameters

arg0 long

long

Returns

long

long

GetGroup(int)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroup(int)

public virtual object GetGroup(int arg0)

Parameters

arg0 int

int

Returns

object

object

GetGroupCount()

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroupCount()

public virtual int GetGroupCount()

Returns

int

int

GetGroupId(int)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroupId(int)

public virtual long GetGroupId(int arg0)

Parameters

arg0 int

int

Returns

long

long

GetGroupType(int)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getGroupType(int)

public virtual int GetGroupType(int arg0)

Parameters

arg0 int

int

Returns

int

int

GetGroupTypeCount()

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#getGroupTypeCount()

public virtual int GetGroupTypeCount()

Returns

int

int

GetGroupView(int, bool, View, ViewGroup)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#getGroupView(int,boolean,android.view.View,android.view.ViewGroup)

public virtual View GetGroupView(int arg0, bool arg1, View arg2, ViewGroup arg3)

Parameters

arg0 int

int

arg1 bool

bool

arg2 View

View

arg3 ViewGroup

ViewGroup

Returns

View

View

HasStableIds()

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#hasStableIds()

public virtual bool HasStableIds()

Returns

bool

bool

InitializeHandlers()

Handlers initializer for BaseExpandableListAdapter

protected virtual void InitializeHandlers()

IsChildSelectable(int, int)

https://developer.android.com/reference/android/widget/ExpandableListAdapter.html#isChildSelectable(int,int)

public virtual bool IsChildSelectable(int arg0, int arg1)

Parameters

arg0 int

int

arg1 int

int

Returns

bool

bool

IsEmpty()

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#isEmpty()

public virtual bool IsEmpty()

Returns

bool

bool

NotifyDataSetChanged()

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#notifyDataSetChanged()

public virtual void NotifyDataSetChanged()

NotifyDataSetInvalidated()

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#notifyDataSetInvalidated()

public virtual void NotifyDataSetInvalidated()

OnGroupCollapsed(int)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#onGroupCollapsed(int)

public virtual void OnGroupCollapsed(int arg0)

Parameters

arg0 int

int

OnGroupExpanded(int)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#onGroupExpanded(int)

public virtual void OnGroupExpanded(int arg0)

Parameters

arg0 int

int

RegisterDataSetObserver(DataSetObserver)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#registerDataSetObserver(android.database.DataSetObserver)

public virtual void RegisterDataSetObserver(DataSetObserver arg0)

Parameters

arg0 DataSetObserver

DataSetObserver

UnregisterDataSetObserver(DataSetObserver)

https://developer.android.com/reference/android/widget/BaseExpandableListAdapter.html#unregisterDataSetObserver(android.database.DataSetObserver)

public virtual void UnregisterDataSetObserver(DataSetObserver arg0)

Parameters

arg0 DataSetObserver

DataSetObserver