CGDevTools Forum

Hi,

Expand-property in a TIWCGJQDynaTreeNode does not work. It's always false. What can I do?

Thank you.

Best regards

Frank.

Hi wieczy123,

Please check the documentation:

http://www.cgdevtools.com/docs/_html/IWCGJQDynaTree.TIWCGJQDynaTreeNode.Expand.htm

TIWCGJQDynaTreeNode.Expand - Initial expanded status.

To check the state of node, you need recent version of cgdevtools:

Code: Select all

2.0.0.3489

JQDynaTree
- Added: new methods ExecNodeCommand and "jsNodeCommand"

Documentation:

delphi code

{$IFDEF NODEF}{$REGION 'CGDevTools - Documentation'}{$ENDIF}
    /// <summary>
    ///   Method to execute the command.
    ///   <note type="note">
    ///     Only commands:
    ///     <list type="bullet">
    ///       <item>
    ///         dtnActivate
    ///       </item>
    ///       <item>
    ///         dtnDeactivate
    ///       </item>
    ///       <item>
    ///         dtnExpand
    ///       </item>
    ///       <item>
    ///         dtnFocus
    ///       </item>
    ///       <item>
    ///         dtnMakeVisible
    ///       </item>
    ///       <item>
    ///         dtnSelect
    ///       </item>
    ///       <item>
    ///         dtnToggleExpand
    ///       </item>
    ///       <item>
    ///         dtnToggleSelect
    ///       </item>
    ///     </list>
    ///     can be called directly on event (e.g: OnClick).
    ///   </note>
    ///   <note type="note">
    ///     The commands that are not included in the previous note, can only
    ///     be used in BrowserParams.
    ///   </note>
    /// </summary>
    {$IFDEF NODEF}{$ENDREGION}{$ENDIF}
    procedure ExecNodeCommand(ACommand: TIWCGJQDynaTreeNodeCommands; const AParams: string = '');
    {$IFDEF NODEF}{$REGION 'CGDevTools - Documentation'}{$ENDIF}
    /// <summary>
    ///   Method return javascript code for command.
    /// </summary>
    {$IFDEF NODEF}{$ENDREGION}{$ENDIF}
    function jsNodeCommand(ACommand: TIWCGJQDynaTreeNodeCommands; const AParams: string = ''): string;

since you have this version (or above), you should use the jsNodeCommand in BrowserParams:

delphi code

with IWCGJQButton1.JQButtonOptions.OnClick.BrowserParams.Add do
begin
    ServerName:= 'isextanded';
    BrowserScript:= IWCGJQDynaTree1.Nodes.Items[1].jsNodeCommand(dtnIsExpanded);
 end;

And OnClick event get the param:

delphi code

procedure TIWForm5.IWCGJQButton1JQButtonOptionsClick(Sender: TObject; AParams: TStringList);
begin
  WebApplication.ShowMessage(AParams.Values['isextanded']);
end;

Best Regards.

Thanks

...but it works only on "main-nodes" on "child-nodes" a "VariantTypeCastError" appear. See this c++ code:

TIWCGJQDynaTreeNode *newitem;
TIWCGJQDynaTreeNode *subitem;
String bs;

newitem = IWCGJQDynaTree1->Nodes->Add();
bs = newitem->jsNodeCommand(dtnIsExpanded); // ok.
newitem = IWCGJQDynaTree1->Nodes->Add();
bs = newitem->jsNodeCommand(dtnIsExpanded); // ok.
newitem = IWCGJQDynaTree1->Nodes->Add();
bs = newitem->jsNodeCommand(dtnIsExpanded); // ok.

subitem = newitem->Children->Add();
bs = subitem->jsNodeCommand(dtnIsExpanded); // fail: VariantTypeCastError

What can i do?

Thank you

Frank.

Hi wieczy123,

Thanks, will fix right now.

Best Regards.

Fixed in V2.0.0.3516:

Code: Select all

JQDynaTree
- Fixed: Invalid typecast on children nodes (owner)

Best Regards.