private void treeView_DragDrop(object sender, DragEventArgs e)
{
TreeNode aNode = CurrentTreeView.GetNodeAt(CurrentTreeView.PointToClient(new Point(e.X, e.Y)));
CurrentTreeView.SelectedNode = aNode;
XmlNode aNodeElement = aNode.Tag as XmlNode;
if (oldNode != null)
{
oldNode.BackColor = aNode.BackColor;
oldNode.ForeColor = aNode.ForeColor;
}
string[] filesOrFolders = (string[])e.Data.GetData(DataFormats.FileDrop);
if (aNodeElement.Name == "Component")
{
ImportFilesInComponent(aNode, aNodeElement, filesOrFolders);
}
else if (aNodeElement.Name == "Directory")
{
ImportFoldersInDirectory(aNode, aNodeElement, filesOrFolders);
}
}
private void treeView_DragOver(object sender, DragEventArgs e)
{
TreeNode aNode = CurrentTreeView.GetNodeAt(CurrentTreeView.PointToClient(new Point(e.X, e.Y)));
if (oldNode == aNode)
{
return;
}
if (e.Data.GetDataPresent(DataFormats.FileDrop))
{
XmlNode aNodeElement = aNode.Tag as XmlNode;
if (aNodeElement.Name == "Component")
{
bool filesOnly = true;
string[] filesAndFolders = (string[])e.Data.GetData(DataFormats.FileDrop);
foreach (string fileOrFolder in filesAndFolders)
{
if (File.Exists(fileOrFolder) == false)
{
filesOnly = false;
break;
}
}
if (filesOnly)
{
e.Effect = DragDropEffects.Copy;
}
else
{
e.Effect = DragDropEffects.None;
}
}
else if (aNodeElement.Name == "Directory")
{
bool dirsOnly = true;
string[] filesAndFolders = (string[])e.Data.GetData(DataFormats.FileDrop);
foreach (string fileOrFolder in filesAndFolders)
{
if (Directory.Exists(fileOrFolder) == false)
{
dirsOnly = false;
break;
}
}
if (dirsOnly)
{
e.Effect = DragDropEffects.Copy;
}
else
{
e.Effect = DragDropEffects.None;
}
}
else
{
e.Effect = DragDropEffects.None;
}
}
if (oldNode != null)
{
oldNode.BackColor = aNode.BackColor;
oldNode.ForeColor = aNode.ForeColor;
}
aNode.BackColor = Color.DarkBlue;
aNode.ForeColor = Color.White;
oldNode = aNode;
}