private void panCols_DragDrop(object sender, DragEventArgs e)
{
QueryDesignDrapDropColumn obj = (QueryDesignDrapDropColumn)e.Data.GetData(typeof(QueryDesignDrapDropColumn));
if (obj != null && m_hightlightedColName >= 0)
{
m_frame.AddJoin(obj.Frame, obj.Column, this, m_table.Columns[m_hightlightedColName].ColumnName, true);
}
}
private void panCols_DragOver(object sender, DragEventArgs e)
{
QueryDesignDrapDropColumn obj = (QueryDesignDrapDropColumn)e.Data.GetData(typeof(QueryDesignDrapDropColumn));
if (obj != null)
{
if (obj.Frame == this)
{
e.Effect = DragDropEffects.None;
return;
}
Point pt = panCols.PointToClient(new Point(e.X, e.Y));
int idx = pt.Y / m_lineHeight;
if (idx >= 0 && idx < m_table.Columns.Count)
{
m_hightlightedColName = idx;
e.Effect = DragDropEffects.Copy;
panCols.Invalidate();
}
}
}