KeyEventArgs error

[omololu]

I have the below Addon script that is causing compilation error The type or namespace name 'KeyEventArgs' could not be found (are you missing a using directive or an assembly reference?) Please, what am I missing or doing wrong ?

region Using declarations
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Markup;
using NinjaTrader.Cbi;
using NinjaTrader.Code;
using NinjaTrader.Gui.Tools;
using NinjaTrader.NinjaScript.Optimizers;
#endregion

namespace omoPop
{

...

private void Form_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Escape)
Close();
}

...

}

[jeronymite]

omololu You'll need to add another using statement: using System.Windows.Input;

In cases like this where the error implies a missing reference (usually a "using" statement), it's often easy to find the culprit by searching for the particular item on the Microsoft C#/WPF sites. Google makes it straightforward: "C# WPF KeyEventArgs" ... and you'll quickly find the relevant assembly names to use.

Thanks.

[NinjaTrader_BrandonH]

Hello omololu,

Thanks for your post.

This error message indicates that you are missing a using directive or assembly reference.

jeronymite is correct. It is likely a missing using directive and a quick Google search could determine which using statement is missing. After doing a quick search for what jeronymite mentioned, we can see a search result that leads to a MSDN documentation about KeyEventArgs. KeyEventArgs requires a using statement of 'System.Windows.Input'.

See this publicly available link for more information: https://learn.microsoft.com/en-us/do...owsdesktop-7.0

Let me know if I may assist further.

[omololu]

omololu You'll need to add another using statement: using System.Windows.Input;

In cases like this where the error implies a missing reference (usually a "using" statement), it's often easy to find the culprit by searching for the particular item on the Microsoft C#/WPF sites. Google makes it straightforward: "C# WPF KeyEventArgs" ... and you'll quickly find the relevant assembly names to use.

Thanks.

Thanks for your response. Yes, the using System.Windows.Input stops the KeyEventArgs error. However, some new errors now emerge.

Regards

omololu

[omololu]

Hello omololu,

Thanks for your post.

This error message indicates that you are missing a using directive or assembly reference.

jeronymite is correct. It is likely a missing using directive and a quick Google search could determine which using statement is missing. After doing a quick search for what jeronymite mentioned, we can see a search result that leads to a MSDN documentation about KeyEventArgs. KeyEventArgs requires a using statement of 'System.Windows.Input'.

See this publicly available link for more information: https://learn.microsoft.com/en-us/do...owsdesktop-7.0

Let me know if I may assist further.

Brandon,

Thank you for your response.

Regards.

omololu