ListBindingHelper.GetListItemType Method

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Returns the type of an item contained in a list or collection.

Overloads

GetListItemType(Object)	Returns the data type of the items in the specified list.
GetListItemType(Object, String)	Returns the data type of the items in the specified data source.

GetListItemType(Object)

Returns the data type of the items in the specified list.

public:
 static Type ^ GetListItemType(System::Object ^ list);

public static Type? GetListItemType (object? list);

static member GetListItemType : obj -> Type

Public Shared Function GetListItemType (list As Object) As Type

Parameters

list

Object

The list to be examined for type information.

Returns

Type

The Type of the items contained in the list.

Remarks

If the list parameter is not a list or array, the type returned will be that of the list parameter itself.

GetListItemType(Object, String)

Returns the data type of the items in the specified data source.

public:
 static Type ^ GetListItemType(System::Object ^ dataSource, System::String ^ dataMember);

public static Type? GetListItemType (object? dataSource, string? dataMember);

static member GetListItemType : obj * string -> Type

Public Shared Function GetListItemType (dataSource As Object, dataMember As String) As Type

Parameters

dataSource

Object

The data source to examine for items.

dataMember

String

The optional name of the property on the data source that is to be used as the data member. This can be null.

Returns

Type

For complex data binding, the Type of the items represented by the dataMember in the data source; otherwise, the Type of the item in the list itself.

Remarks

This version of the GetListItemType method is used to determine the type of items used in complex or simple data-binding schemes. This static method may be useful in determining whether a proposed data-binding scheme is appropriate before attempting it.

If dataSource is null, the property descriptors cannot be found for the list items of the specified data member, or the property descriptor for the list item is an ICustomTypeDescriptor, then this method returns the type of the Object class.

If dataMember is null or empty, then this method returns the Type of the items in the data source, if it is a list; otherwise, this method returns the Type of the data source itself.