Disabling Instrument selector on Chart

[daqu40]

I'm trying to be able to use a text box I've added to the chart control using

ChartWindow.MainMenu.Add([I]control[/I])

The controls go on just fine, but when I try to change a value in them the instrument selector pops up.

I've tried to use the example in this thread: http://ninjatrader.com/support/forum...PreviewKeyDown

Unfortunately it's not working. When I implement the PreviewKeyDown event I get a CS0118 error.

The bind event and event code are:

TxtBxPositionSize.PreviewKeyDown += new TxtBxPositionSize_PreviewKeyDown(TxtBxPositionSize _PreviewKeyDown);


private void TxtBxPositionSize_PreviewKeyDown(object sender, KeyEventArgs e)
{
// this is pretty dumb, but should get you started
// might want to validate this by using SHIFT or something
// so Overlay Instrument Selector isn't unusable...
TextBox textBoxSender = (TextBox)sender;
textBoxSender.Text += e.Key.ToString();
// handle the keydown event for the text box

e.Handled = true;

Print("input keys: " + textBoxSender.Text);
}

This is pretty much copied exactly from the example given in the thread mentioned above so I'm baffled as to why I'm getting this error.

Any help is much appreciated.

Thanks

[NinjaTrader_Jesse]

Hello daqu40,

The one thing I can see from your post is how you are creating the subscription to the event handler. Could you modify the following line to match the sample in the post you linked? Try just specifying the method like the following:

TxtBxPositionSize.PreviewKeyDown += TxtBxPositionSize _PreviewKeyDown;

If you could provide a sample I can compile I could likely see what the error is more clearly.

I look forward to being of further assistance.

[daqu40]

That worked Jesse.

So why does

TxtBxPositionSize.PreviewKeyDown += TxtBxPositionSize _PreviewKeyDown;

work when all of my other event bindings use a format like

TxtBxTargetTicks.TextChanged += new TextChangedEventHandler(TxtBxTargetTicks_TextChanged);

Thanks!

[NinjaTrader_Jesse]

Hello,

I beleive there is some confusion between what existing handlers you have and what you were trying.

With the syntax you were trying it looks like you just copied the handlers method name twice:

TxtBxPositionSize.PreviewKeyDown += new [B]TxtBxPositionSize_PreviewKeyDown[/B]([B]TxtBxPositionSize_PreviewKeyDown[/B]);

Where as the other handlers you created you defined a new type of handler (green) and provided the method as its target rather than just two of the same method name:

TxtBxTargetTicks.TextChanged += new [COLOR="SeaGreen"]TextChangedEventHandler[/COLOR]([B]TxtBxTargetTicks_TextChanged[/B]);

By not specifying the type and creating a new instance of the handler, you can otherwise use the shorthand and just specify the target method like I had shown previously.

TxtBxPositionSize.PreviewKeyDown += TxtBxPositionSize _PreviewKeyDown;

I look forward to being of further assistance.

[daqu40]

Thanks Jesse,

It was the use of the keyword new that was throwing me off. Got it all working now.