C# IDataObject.SetData方法代碼示例

private void SetData1() 
{
    // Creates a component to store in the data object.
    Component myComponent = new Component();
 
    // Creates a data object.
    DataObject myDataObject = new DataObject();

    // Adds the component to the data object.
    myDataObject.SetData(myComponent);
 
    // Checks whether data of the specified type is in the data object.
    Type myType = myComponent.GetType();
    string myMessageText;
    if(myDataObject.GetDataPresent(myType))
         myMessageText = "Data of type " + myType.Name + 
            " is present in the data object";
    else
        myMessageText = "Data of type " + myType.Name +
            " is not present in the data object";

    // Displays the result in a message box.
    MessageBox.Show(myMessageText, "The Test Result"); 
}

private void SetData2() 
{
    // Creates a data object.
    DataObject myDataObject = new DataObject();
 
    // Stores a string, specifying the UnicodeText format.
    myDataObject.SetData(DataFormats.UnicodeText, "Hello World!");
 
    // Retrieves the data by specifying the Text format.
    string myMessageText = "The data type is " + myDataObject.GetData(DataFormats.Text).GetType().Name;

    // Displays the result.
    MessageBox.Show(myMessageText, "The Test Result");
}

private void SetData3() 
{
    // Creates a component.
    Component myComponent = new Component();
 
    // Gets the type of the component.
    Type myType = myComponent.GetType();
 
    // Creates a data object.
    DataObject myDataObject = new DataObject();
 
    // Stores the component in the data object.
    myDataObject.SetData(myType, myComponent);
 
    // Checks whether data of the specified type is in the data object.
    string myMessageText;
    if(myDataObject.GetDataPresent(myType))
        myMessageText = "Data of type " + myType.Name + 
            " is stored in the data object";
    else
        myMessageText = "No data of type " + myType.Name +
            " is stored in the data object";
            
    // Displays the result.
    MessageBox.Show(myMessageText, "The Test Result");
}

private void SetData4() 
       {
           // Creates a new data object.
           DataObject myDataObject = new DataObject();

           // Adds UnicodeText string to the object, and set the autoConvert 
           // parameter to false.
           myDataObject.SetData(DataFormats.UnicodeText, false, "My text string");

           // Gets the data format(s) in the data object.
           String[] arrayOfFormats = myDataObject.GetFormats();

           // Stores the results in a string.
           string theResult = "The format(s) associated with the data are:" + '\n';
           for(int i=0; i<arrayOfFormats.Length; i++)
               theResult += arrayOfFormats[i] + '\n';
           
           // Show the results in a message box. 
           MessageBox.Show(theResult);
       }