public void HandleDragEnter(DragEventArgs e)
{
//wrap standard IDataObject in OutlookDataObject
OleDataObject dataObject = new OleDataObject(e.Data);
string[] filenames = null;
if (dataObject.GetDataPresent("FileDrop"))
{
filenames = (string[])dataObject.GetData("FileDrop");
}
else if (dataObject.GetDataPresent("FileGroupDescriptor"))
{
filenames = (string[])dataObject.GetData("FileGroupDescriptorW");
}
if (filenames != null)
{
e.Effect = DragDropEffects.Copy;
foreach (string filename in filenames)
{
string ext = Path.GetExtension(filename).ToLower();
if (!this.AllowedExt.Contains(ext))
{
e.Effect = DragDropEffects.None;
break;
}
}
}
}
/// <summary>
/// Determines whether the Toolbox user supports the referenced data object.
/// </summary>
/// <param name="pDO">Data object to be supported.</param>
/// <returns>If the method succeeds, it returns S_OK. If it fails, it returns an error code.</returns>
int IVsToolboxUser.IsSupported(IOleDataObject pDO)
{
// Create a OleDataObject from the input interface.
OleDataObject oleData = new OleDataObject(pDO);
// Check if the data object is of type MyToolboxData.
if (oleData.GetDataPresent(typeof(Toolbox_TestItem1)))
{
return(VSConstants.S_OK);
}
if (oleData.GetDataPresent(typeof(Toolbox_TestItem2)))
{
return(VSConstants.S_OK);
}
// In all the other cases return S_FALSE
return(VSConstants.S_FALSE);
}
/// <summary>
/// Sends notification that an item in the Toolbox is selected through a click, or by pressing ENTER.
/// </summary>
/// <param name="pDO">Data object that is selected.</param>
/// <returns>If the method succeeds, it returns S_OK. If it fails, it returns an error code.</returns>
int IVsToolboxUser.ItemPicked(IOleDataObject pDO)
{
// Create a OleDataObject from the input interface.
OleDataObject oleData = new OleDataObject(pDO);
// Check if the picked item is the one we added to the toolbox.
if (oleData.GetDataPresent(typeof(Toolbox_TestItem1)))
{
Debug.WriteLine("MyToolboxItemData selected from the toolbox");
Toolbox_TestItem1 myData = (Toolbox_TestItem1)oleData.GetData(typeof(Toolbox_TestItem1));
//editorControl.Text += myData.Content;
}
return(VSConstants.S_OK);
}
public int ItemPicked(IDataObject pDO)
{
// Create a OleDataObject from the input interface.
OleDataObject oleData = new OleDataObject(pDO);
// Check if the picked item is the one we added to the toolbox.
if (oleData.GetDataPresent(typeof(ToolboxData)))
{
System.Diagnostics.Trace.WriteLine("MyToolboxItemData selected from the toolbox");
ToolboxData myData = (ToolboxData)oleData.GetData(typeof(ToolboxData));
editorControl.tbDropData.Text = myData.Content;
}
return(VSConstants.S_OK);
}
