private void mapEditorToolStripMenuItem_Click(object sender, EventArgs e)
{
if (mapEditor == null)
{
if (string.IsNullOrEmpty(this.dataPath))
LoadDataPath();
this.mapEditor = new MapEditor(this.dataPath);
this.mapEditor.Disposed += _mapEditor_Disposed;
this.mapEditor.MdiParent = this;
this.mapEditor.Show();
}
}