VB.NET IDataObject.GetData方法代码示例

Private Sub GetData1()
    ' Creates a new data object using a string and the text format.
    Dim myString As String = "My text string"
    Dim myDataObject As New DataObject(DataFormats.Text, myString)

    ' Displays the string in a text box.
    textBox1.Text = myDataObject.GetData(DataFormats.Text).ToString()
End Sub

Private Sub GetData2()
    ' Creates a component.
    Dim myComponent As New System.ComponentModel.Component()

    ' Creates a data object, and assigns it the component.
    Dim myDataObject As New DataObject(myComponent)

    ' Creates a type, myType, to store the type of data.
    Dim myType As Type = myComponent.GetType()

    ' Retrieves the data using myType to represent its type.
    Dim myObject As [Object] = myDataObject.GetData(myType)
    If (myObject IsNot Nothing) Then
        MessageBox.Show("The data type stored in the data object is " + myObject.GetType().Name + ".")
    Else
        MessageBox.Show("Data of the specified type was not stored " + "in the data object.")
    End If
End Sub

Private Sub GetData3()
    ' Creates a new data object using a text string.
    Dim myString As String = "Hello World!"
    Dim myDataObject As New DataObject(DataFormats.Text, myString)

    ' Displays the string with autoConvert equal to false.
    If (myDataObject.GetData("System.String", False) IsNot Nothing) Then
        ' Displays the string in a message box.
        MessageBox.Show(myDataObject.GetData("System.String", False).ToString() + ".", "Message #1")
        ' Displays a not found message in a message box.
    Else
        MessageBox.Show("Could not find data of the specified format.", "Message #1")
    End If

    ' Displays the string in a text box with autoConvert equal to true.
    Dim myData As String = "The data is " + myDataObject.GetData("System.String", True).ToString()
    MessageBox.Show(myData, "Message #2")
End Sub