#Getdata c++ trial
This trial fails, and the result is displayed in a message box labeled "Message #1." In the second trial, the example retrieves the same data with the autoConvert parameter set to true. In the first trial, it specifies its format as a string and sets the autoConvert parameter to false. Then the example tries twice to retrieve the data. First, myDataObject is created with text data. The example retrieves the data stored in a DataObject, using the autoConvert parameter to specify whether or not to convert the data format. This example uses the DataObject class, which implements IDataObject, to demonstrate the use of the GetData method. True to convert the data to the specified format otherwise, false. MessageBox.Show("Data of the specified type was not stored " + "in the data object.") MessageBox.Show("The data type stored in the data object is " + myObject.GetType().Name + ".") ' Retrieves the data using myType to represent its type.ĭim myObject As = myDataObject.GetData(myType) ' Creates a type, myType, to store the type of data.ĭim myType As Type = m圜omponent.GetType() ' Creates a data object, and assigns it the component.ĭim myDataObject As New DataObject(m圜omponent) MessageBox.Show("Data of the specified type was not stored " +ĭim m圜omponent As New () MessageBox.Show("The data type stored in the data object is " + Object myObject = myDataObject.GetData(myType) MessageBox::Show( "Data of the specified type was not stored in the data object." ) ĭataObject myDataObject = new DataObject(m圜omponent) MessageBox::Show( "The data type stored in the data object is " + Object^ myObject = myDataObject->GetData( myType ) Retrieves the data using myType to represent its type. Creates a type, myType, to store the type of data. Creates a data object, and assigns it the component.ĭataObject^ myDataObject = gcnew DataObject( m圜omponent ) private:Ĭomponent^ m圜omponent = gcnew Component The example assumes that you have already created a Form named Form1. The type of the retrieved data is displayed in a message box. The method is used to retrieve the data stored in myObject, which is associated with a specific type, myType. Call GetFormats for a list of valid formats for the data stored in this instance.Ī Type representing the format of the data to retrieve. To determine whether data is associated with, or can be converted to, a format, call GetDataPresent before calling GetData. If the data cannot be converted to the specified format, this method returns null. If this method cannot find data in the specified format, it attempts to convert the data to the format. TextBox1.Text = myDataObject.GetData(DataFormats.Text).ToString() ' Creates a new data object using a string and the text format.ĭim myString As String = "My text string"ĭim myDataObject As New DataObject(DataFormats.Text, myString) TextBox1->Text = myDataObject->GetData( DataFormats::Text )->ToString() ĭataObject myDataObject = new DataObject(DataFormats.Text, myString) Creates a new data object using a string and the text format.ĭataObject^ myDataObject = gcnew DataObject( DataFormats::Text,myString ) The example assumes that you have already created a Form named Form1 and a TextBox named textBox1. The method is used to retrieve the data stored in myDataObject, which is associated with the Text format. The data associated with the specified format, or null.
0 kommentar(er)
