Drawing Lines on a panel not the form itself

Question

Hello CSharpCorner

I'm working on a paintapplication working with GDI+ in C# and i have a little problem.

In my first step i want to draw a simple line in A PANEL.
There are many tutorials that explain how it works on the form itself but it's quite important for my project it's in a panel.

Even when i put the code to draw on the form itself it gives a error.

With what code can i simply draw this line on a panel?

greetz

Gomathi Palaniswamy · Answer

Hi friend create the graphics on panel.(i.e) panel.creategraphics(); With Regards Gomathi.P

Guan · Answer

If i clear the 'empty' constructor private void Form1_Paint( object sender System.Windows.Forms. PaintEventArgs e) { } The error list says this: Error 1 'WindowsFormsApplication1.Form1' does not contain a definition for 'Form1_Paint' and no extension method 'Form1_Paint' accepting a first argument of type 'WindowsFormsApplication1.Form1' could be found (are you missing a using directive or an assembly reference?) C:\Documents and Settings\Administrator\Desktop\WindowsFormsApplication1\WindowsFormsApplication1\Form1.Designer.cs 52 75 WindowsFormsApplication1 Why is that ? That constructor isn't used anywhere to paint on it and i don't use that constructor anywhere. To get my default form this code is enough i think ? private void Form1_Load( object sender EventArgs e) { }

Gomathi Palaniswamy · Answer

Hi friend Is it showing error in designer code? With regards Gomathi.P

Guan · Answer

Hi Mr. Palaniswamy Thanx for your help. When i try it it works fine like i want but i have a question. When i succeeded to draw my line on the form itself i wrote down my code between this constructor private void Form1_Paint( object sender System.Windows.Forms. PaintEventArgs e) { } When i use my panel now i think it's logical i write it between this constructor private void panel1_Paint( object sender System.Windows.Forms. PaintEventArgs e) { } Everything works as long as i don't clear the first constructor (form1_paint) When i delete that one Visual Studio gives me an error. Why is that? I think that constructor isn't necessary anymore or am i wrong ? Greetings Guan

Drawing Lines on a panel, not the form itself