[Gtk-sharp-list] Deleting a row from a Tree

[Christian Ziegner]

Hi there.

I have a question regarding the TreeView Widget. I want to delete a row
from a tree by clicking on a button. My problem is, how can i get the
row which is selected by the user and is to be deleted. My GUI was
created with glade and thus i don't have the possibility to directly
access the column. Basically, one of my trees looks as follows:

[Glade.Widget] TreeView ActionTree;

(...)

TreeStore store6 = new TreeStore (typeof(string), typeof(string));

string[] aktivitaet = new string [] {"John Foo","bla","One
Some","doing"};
	
	for (int i = 0; i<(aktivitaet.Length-1); i+=2)
    
    		{
    		TreeIter iter6 =
store6.AppendValues(aktivitaet[i+1],aktivitaet[i]);
    		}
    	
    		ActionTree.Model = store6;
    		ActionTree.HeadersVisible= true;
    
    		ActionTree.AppendColumn("Taetigkeit", new CellRendererText(),
"text", 0);
    		ActionTree.AppendColumn("Bearbeiter", new CellRendererText(),
"text", 1)

(...)

The button I have tried with:

void AktionLoeschen_clicked (object o, EventArgs args) 
		{ 
			Console.WriteLine("Aktion loeschen");
			AktionTree.RemoveColumn(AktionTree.Selection.GetSelectedRows(out 
store6)); 
		}

Unfortunately, this does not work at all. The mcs complains about bad
arguments. Does anyone have an idea regarding my problem??? I'd greatly
appreciate ANY help...

Greetings,
Chris