C#•12mo ago

Cuboid not being drawn

The cube works perfectly fine.

16 Replies

AubreyOP•12mo ago

https://paste.mod.gg/tywbbdfnunmk/0

BlazeBin - tywbbdfnunmk

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Buddy•12mo ago

You must override or subscribe to OnPaint event

AubreyOP•12mo ago

huh

Buddy•12mo ago

You cannot simply draw once because if the window is redrawn the graphics will disappear https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.control.onpaint?view=windowsdesktop-8.0

AubreyOP•12mo ago

idk if im just stupid but the microsoft sites r so hard for me to understand 😭 maybe its just cus im a beginner

Buddy•12mo ago

It has examples if you scroll catlaugh

AubreyOP•12mo ago

the examples r equally as confusing 😭

Buddy•12mo ago

yourcontrol.Paint += YourMethod; is how you subscribe to an event. The method will be called when the event has been called / invoked. The paint event will be called when the control needs a repaint, like when you resize or move the window.

AubreyOP•12mo ago

but it doesnt get resized or moved

Buddy•12mo ago

YourMethod Can be

private void YourMethod(object sender, System.Windows.Forms.PaintEventArgs e)
{
    // Create a local version of the graphics object for the PictureBox.
    Graphics g = e.Graphics;

    // Draw a string on the PictureBox.
    g.DrawString("This is a diagonal line drawn on the control",
        fnt, System.Drawing.Brushes.Blue, new Point(30,30));
    // Draw a line in the PictureBox.
    g.DrawLine(System.Drawing.Pens.Red, pictureBox1.Left, pictureBox1.Top,
        pictureBox1.Right, pictureBox1.Bottom);
}

private void YourMethod(object sender, System.Windows.Forms.PaintEventArgs e)
{
    // Create a local version of the graphics object for the PictureBox.
    Graphics g = e.Graphics;

    // Draw a string on the PictureBox.
    g.DrawString("This is a diagonal line drawn on the control",
        fnt, System.Drawing.Brushes.Blue, new Point(30,30));
    // Draw a line in the PictureBox.
    g.DrawLine(System.Drawing.Pens.Red, pictureBox1.Left, pictureBox1.Top,
        pictureBox1.Right, pictureBox1.Bottom);
}

No matter You can do this pictureBox1.Paint += YourMethod; Which will subscribe to the paint event. And just follow the code that was posted above which is the example in Microsofts documentation.

AubreyOP•12mo ago

i dont wanna seem stupid, but what is "YourMethod" here? 😭 still havent figured out how to fix this 😭

Buddy•12mo ago

I took a look at your code further, you are doing an early return if it isn't "cube" Meaning only "cube" execute You must think logically return means it will stop execution and return a value, if the return has been hit, anything after a return will be ignored. != not equals == equals

if (comboBoxShape.SelectedItem != "Cube")
{
// Anything that isn't "Cube" will return early, meaning it will not draw anything.
     return;
}

if (comboBoxShape.SelectedItem != "Cube")
{
// Anything that isn't "Cube" will return early, meaning it will not draw anything.
     return;
}

AubreyOP•12mo ago

oh my god. thank you so much i didnt know thats what the code did that helps alot i was just told to use != without further explanation neither did i know what return did 😭

Buddy•12mo ago

AubreyOP•12mo ago

https://paste.mod.gg/xifyvlcqfimg/0

BlazeBin - xifyvlcqfimg

A tool for sharing your source code with the world!

AubreyOP•12mo ago

done now :3 @Net🅱orking is🎄save me pls thank you so much again

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Cuboid not being drawn

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