IToolboxUser.GetToolSupported(ToolboxItem) Methode

Definition

Namespace:

System.Drawing.Design

Assembly:

System.Windows.Forms.Design.dll

Ruft einen Wert ab, der angibt, ob das angegebene Tool vom aktuellen Designer unterstützt wird.

public:
 bool GetToolSupported(System::Drawing::Design::ToolboxItem ^ tool);

public bool GetToolSupported (System.Drawing.Design.ToolboxItem tool);

abstract member GetToolSupported : System.Drawing.Design.ToolboxItem -> bool

Public Function GetToolSupported (tool As ToolboxItem) As Boolean

Parameter

tool

ToolboxItem

Das ToolboxItem, das auf Toolboxunterstützung getestet werden soll.

Gibt zurück

Boolean

true, wenn das Tool von der Toolbox unterstützt wird und aktiviert werden kann. false, wenn der Dokument-Designer das Tool nicht unterstützt.

Beispiele

Im folgenden Codebeispiel wird eine Implementierung der GetToolSupported -Methode veranschaulicht.

// This method can signal whether to enable or disable the specified
// ToolboxItem when the component associated with this designer is selected.
bool IToolboxUser::GetToolSupported( ToolboxItem^ tool )
{
   
   // Search the blocked type names array for the type name of the tool
   // for which support for is being tested. Return false to indicate the
   // tool should be disabled when the associated component is selected.
   for ( int i = 0; i < blockedTypeNames->Length; i++ )
      if ( tool->TypeName == blockedTypeNames[ i ] )
               return false;

   
   // Return true to indicate support for the tool, if the type name of the
   // tool is not located in the blockedTypeNames string array.
   return true;
}

// This method can signal whether to enable or disable the specified
// ToolboxItem when the component associated with this designer is selected.
bool IToolboxUser.GetToolSupported(ToolboxItem tool)
{       
    // Search the blocked type names array for the type name of the tool
    // for which support for is being tested. Return false to indicate the
    // tool should be disabled when the associated component is selected.
    for( int i=0; i<blockedTypeNames.Length; i++ )
        if( tool.TypeName == blockedTypeNames[i] )
            return false;
    
    // Return true to indicate support for the tool, if the type name of the
    // tool is not located in the blockedTypeNames string array.
    return true;
}

' This method can signal whether to enable or disable the specified
' ToolboxItem when the component associated with this designer is selected.
Function GetToolSupported(ByVal tool As ToolboxItem) As Boolean Implements IToolboxUser.GetToolSupported
    ' Search the blocked type names array for the type name of the tool
    ' for which support for is being tested. Return false to indicate the
    ' tool should be disabled when the associated component is selected.
    Dim i As Integer
    For i = 0 To blockedTypeNames.Length - 1
        If tool.TypeName = blockedTypeNames(i) Then
            Return False
        End If
    Next i ' Return true to indicate support for the tool, if the type name of the
    ' tool is not located in the blockedTypeNames string array.
    Return True
End Function

Hinweise

Wenn das angegebene Tool vom Designer unterstützt wird, der die IToolboxUser Schnittstelle implementiert, wird das Tool in der Toolbox aktiviert, wenn dieser Designer den Fokus hat. Andernfalls wird sie deaktiviert. Sobald ein Tool als aktiviert oder deaktiviert markiert ist, wird es möglicherweise nicht erneut auf Unterstützung mit demselben Designer getestet.

Weitere Informationen

• ToolboxItem