C#•10mo ago

✅ WinForms - Parameter is not valid?

for whatever reason, my custom control 'SimonButton' breaks in the OnPaint method

13 Replies

protected override void OnPaint(PaintEventArgs e)
{
    if (_isClicked)
    {
        e.Graphics.DrawImage(new Bitmap($"{AppDomain.CurrentDomain.BaseDirectory}Simon-Assets\\YellowDown.png"), Location.X, Location.Y);
    }
    else
    {
        e.Graphics.DrawImage(new Bitmap($"{AppDomain.CurrentDomain.BaseDirectory}Simon-Assets\\Yellow.png"), Location.X, Location.Y);
    }
}

protected override void OnPaint(PaintEventArgs e)
{
    if (_isClicked)
    {
        e.Graphics.DrawImage(new Bitmap($"{AppDomain.CurrentDomain.BaseDirectory}Simon-Assets\\YellowDown.png"), Location.X, Location.Y);
    }
    else
    {
        e.Graphics.DrawImage(new Bitmap($"{AppDomain.CurrentDomain.BaseDirectory}Simon-Assets\\Yellow.png"), Location.X, Location.Y);
    }
}

SinFluxx•10mo ago

Note sure if it will solve the error you're seeing, but from the docs: Notes to Inheritors When overriding OnPaint(PaintEventArgs) in a derived class, be sure to call the base class's OnPaint(PaintEventArgs) method so that registered delegates receive the event.

Unknown User•10mo ago

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Ninja KirbyOP•10mo ago

i verified the validity of the actual path it is correct and does lead to a file and i am aware that is what he means so i will try it

Unknown User•10mo ago

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Ninja KirbyOP•10mo ago

wow it worked epic

Unknown User•10mo ago

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Ninja KirbyOP•10mo ago

i used a debugger i verified the validity of the statement

Unknown User•10mo ago

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Ninja KirbyOP•10mo ago

and the error message wasnt real to me at all 💀

Unknown User•10mo ago

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Ninja KirbyOP•10mo ago

no line or indication that i should call base but its solved now

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✅ WinForms - Parameter is not valid?