private void generate_graph(String text)
{
if (dbm.setting.vertexCol == null)
{
dbm.setting.vertexCol = listView1.Items[0].Text;
}
if (dbm.setting.edgeCol == null)
{
dbm.setting.edgeCol = listView2.Items[0].Text;
}
GraphGenerated(this, new IgraphGenerateEvent(dbm.get_network(text, 0)));
this.Close();
}