✅ bitmap bug question
I use bitmap when clicking on a picturebox to change the image. It still runs in debug mode but after downloading the program package and installing it, when I click on it, it gives me this error. How to fix it? (code sample: private void pictureBox1_Click(object sender, EventArgs e)
{
pictureBox1.Image = new Bitmap(Application.StartupPath + @"\Resources\Card Visit_Final-03.png", true); })
pictureBox1.Image = new Bitmap(Application.StartupPath + @"\Resources\Card Visit_Final-03.png", true); })
31 Replies
image probably doesn't exist at that path
maybe Application.StartupPath doesnt return what u think it does
it
Gets the path for the executable file that started the application
ur exe is in your project's folder/bin/debug if you're running in debug mode
and your file is probably in UrProject/Resources/Card Visit_Final-03.png
and its probably trying to look in UrProject/bin/Debug/Resources/Card Visit_Final-03.png
also is Card Visit_Final-03.png the file's name or is Card suppose to be a folder?it's an image from a file
u can however change Copy to output directory settings like in this image
to copy the files in your project's folder into your exe's folder when u compile/run ur program
Oh ill try
Thank you for the advice
ah it still won't work, i tried using full path but it still won't work
but curiously it's saying
parameter is not valid, not file not found
Hey try to right click your image in your solution and copy full path and paste it as path see if you get the same error
Also set the bool to false and try
It only defines if the picture is readonly or not
Try
private void pictureBox1_Click(object sender, EventArgs e)
{
string imagePath = Application.StartupPath + @"\Resources\Card Visit_Final-03.png";
if (File.Exists(imagePath))
{
pictureBox1.Image = new Bitmap(imagePath);
}
}
But first replace string imagePath with the path you copied from right clicking the image in solution , should look something like \\file\\etc.png
When i copy the path by right clicking it in solution usually works for testingoh cool ill try
oh my bad, I didn't include the image file in the packaging, and it generated an error, and now it shows this
well, wrong path then
use Visual Studio's debugger to see the full path
$debug
Tutorial: Debug C# code - Visual Studio (Windows)
Learn features of the Visual Studio debugger and how to start the debugger, step through code, and inspect data in a C# application.
cool
Did you try to copy the path from solution folder
Because if you use if(file.exist) etc should not give you that error
ah ok i will take note of that o7
Use if (File.Exists(myFile))
its probably good to let it throw an exception to know if the file path is valid or not
True then use try catch
catch catches the exception, it wont crash the program
you can just use if (!File.Exists) and display a messagebox to indicate the file isnt found
you can even display the path of the file ur trying to access on the MessageBox
The code i provided should work tho right ? I mean if the file exists
yes but what if file doesnt exist? no action will be taken
Ye but that why he should right click the png file click copy path and see if that path works.
Also he needs to use
using System.IO; but usually thats done by vs
Oh i get your point xD yeeits better to pop up a message box saying no file found on this path if File.Exists returned false
displaying the full path might help you whats wrong
@Yami add a else statement
if (File.Exists(filename))
{
// code for file
}
else
{
MessageBox.Show("File not found.");
}
As R mentioned above use the else block to check for whats wrongMessageBox.Show($"File not found on {filename}");
Yes exactly thank you its hard writing on the phone 😶😂
How did it go
It worked
Thank you everyone for 
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