tree code error

[GoOgLe]

it seemed to b right but i get the error in the image... when i click in tree object where there is no node i get this error...

seleccionado = Tree.GetSelectedNode("Tree1");
if seleccionado ~= nil then
infodelarbol = Tree.GetNode("Tree1", seleccionado);
if infodelarbol.Data ~= "" then
		IExplorer.Navigate("Plugin1", infodelarbol.Data);
		Input.SetText("AdressBar", infodelarbol.Data);
		else
end
end

and when i use that code it loads the first node of tree object, if i click somewhere that doesnt have a node in tree object !!!

seleccionado = Tree.GetSelectedNode("Tree1");
if seleccionado ~= "" then
infodelarbol = Tree.GetNode("Tree1", seleccionado);
if infodelarbol.Data ~= "" then
		IExplorer.Navigate("Plugin1", infodelarbol.Data);
		Input.SetText("AdressBar", infodelarbol.Data);
		else
end
end

[jassing]

from the help on Tree.GetNode():

If no data exists, or an error occurs, nil will be returned. You can use Application.GetLastError to determine whether this action failed, and why.

I find that no mater what you're doing, if a function returns a table always check for it to be a table & not nil..

In otherwords; do something like this:

infodelarbol = Tree.GetNode("Tree1", seleccionado);
if infodelarbol and type("infodelarbol") == "table" then

[GoOgLe]

thanks alot jassing

i tried that but it didnt work either...

seleccionado = Tree.GetSelectedNode("Tree1");
if seleccionado ~= "" then
infodelarbol = Tree.GetNode("Tree1", seleccionado);
if infodelarbol and type("infodelarbol") == "table" then
		IExplorer.Navigate("Plugin1", infodelarbol.Data);
		Input.SetText("AdressBar", infodelarbol.Data);
		else
end
end

[jassing]

what error are you getting?(and on what line)

[GoOgLe]

no error it just doesnt load the node to iexplorer...

[jassing]

no error it just doesnt load the node to iexplorer...

"i tried that but it didnt work either" leads us to think you got the same or another error.... we can't help unless you give us information....

My guess is that infodelarbol is not evaluating to a table...

Try this, and report any errors, or results you get.

seleccionado = Tree.GetSelectedNode("Tree1");
if seleccionado ~= "" then
  infodelarbol = Tree.GetNode("Tree1", seleccionado);
  if infodelarbol and type("infodelarbol") == "table" then
    IExplorer.Navigate("Plugin1", infodelarbol.Data);
    Input.SetText("AdressBar", infodelarbol.Data);
  else
    Dialog.Message("Error condition","'infodelarbol' not a table");
  end
else
  Dialog.Message("Error condition","'seleccionado' is nil");
end

[GoOgLe]

thanks for ur helps jassing...

this is the orror i get using ur code

[Dermot]

Tree.GetSelectedNode() returns a string not a table. You just need to check that it is not nil.

[jassing]

(no need to post here & send me a PM)

Then your call to Tree.GetSelectedNode() has failed.
Use Application.GetLastError() to determine why.


From the help file:

Returns
(string) A string containing the selected item's node index or an empty string ("") if an error occurs. You can use Application.GetLastError to determine whether this action failed, and why.

[Dermot]

This will always return false because it is never going to be a table.

if infodelarbol and type("infodelarbol") == "table" then

[jassing]

This will always return false because it is never going to be a table.

if infodelarbol and type("infodelarbol") == "table" then

So the help file is wrong? (or have I been looking at it too long?)

table Tree.GetNode( string ObjectName, string NodeIndex )

[Dermot]

Sorry my fault, I thought we were talking about Tree.GetSelectedNode() which returns a string. Tree.GetNode() returns a table so you are right. Just ignore me.

[GoOgLe]

here is the apz... i tried Application.GetLastError() and it said no node selected !!!

[Dermot]

OK this is all you need. The On Select event returns the selected index so you don't need to find out what node is selected.

local infodelarbol = Tree.GetNode("Tree1", e_NodeIndex);

if infodelarbol then
	IExplorer.Navigate("Plugin1", infodelarbol.Data);
	Input.SetText("Input1", infodelarbol.Data);
end