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DataSourceView.CanDelete Property

Gets a value indicating whether the DataSourceView object associated with the current DataSourceControl object supports the ExecuteDelete operation.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

'Declaration
Public Overridable ReadOnly Property CanDelete As Boolean
'Usage
Dim instance As DataSourceView 
Dim value As Boolean 

value = instance.CanDelete

Property Value

Type: System.Boolean
true if the operation is supported; otherwise, false. The base class implementation returns false.

The CanDelete property reflects not only a capability of the data source control, but also whether it is currently appropriate to perform an operation. For example, even though a data source view supports the ExecuteDelete operation in general, if a required property or some other data is not set, the CanDelete property returns false, as a delete operation would fail.

The following code example demonstrates how to override the CanDelete property and the ExecuteDelete method in a class that extends the DataSourceView class. This code example is part of a larger example provided for the DataSourceView class.

' The CsvDataSourceView does not currently 
' permit deletion. You can modify or extend 
' this sample to do so. 
Public Overrides ReadOnly Property CanDelete() As Boolean 
   Get 
      Return False 
   End Get 
End Property 

Protected Overrides Function ExecuteDelete(keys As IDictionary, values As IDictionary) As Integer 
   Throw New NotSupportedException()
End Function 'ExecuteDelete

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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