System.IndexOutOfRangeException

I running the program but come out this error. I cannot find how to fix it, can anyone help me?

int counter = 0;
int select;
public Form1()
{
InitializeComponent();
}
private void TeachingPage()
{
lblTitle.Visible = false;
btnAnimal.Visible = false;
btnFlower.Visible = false;
btnInsect.Visible = false;
btnStationery.Visible = false;
btnShape.Visible = false;
btnColour.Visible = false;
btnFruit.Visible = false;
btnVehicle.Visible = false;
lblFileName.Visible = true;
pictureBox1.Visible = true;
}
private void MainPage()
{
lblTitle.Visible = true;
btnAnimal.Visible = true;
btnFlower.Visible = true;
btnInsect.Visible = true;
btnStationery.Visible = true;
btnShape.Visible = true;
btnColour.Visible = true;
btnFruit.Visible = true;
btnVehicle.Visible = true;
lblFileName.Visible =false;
pictureBox1.Visible = false;
counter = 0;
SpeakCancel();
timer1.Stop();
}
private void Speak()
{
SpeechSynthesizer s = new SpeechSynthesizer();
s.SelectVoiceByHints(VoiceGender.Male);
s.SpeakAsync(lblFileName.Text);
s.SpeakAsync(lblFileName.Text);
}
private void SpeakCancel()
{
SpeechSynthesizer s = new SpeechSynthesizer();
s.SelectVoiceByHints(VoiceGender.Male);
s.SpeakAsyncCancelAll();
}
private void btnAnimal_Click(object sender, EventArgs e)
{
TeachingPage();
counter++;
string path = @"C:\Users\Tan Wei Shen\Desktop\FYP\Animal";
string[] filePaths = Directory.GetFiles(path, "*.jpg");
pictureBox1.Image = Image.FromFile(filePaths[counter]);
lblFileName.Text = Path.GetFileNameWithoutExtension(filePaths[counter]); //show name of the image
Speak();
timer1.Start();
select = 1;
}
private void btnInsect_Click(object sender, EventArgs e)
{
TeachingPage();
counter++;
string path = @"C:\Users\Tan Wei Shen\Desktop\FYP\Insect";
string[] filePaths = Directory.GetFiles(path, "*.jpg");
pictureBox1.Image = Image.FromFile(filePaths[counter]);
lblFileName.Text = Path.GetFileNameWithoutExtension(filePaths[counter]); //show name of the image
Speak();
timer1.Start();
select = 2;
}
private void timer1_Tick(object sender, EventArgs e)
{
counter++;
if (select == 1)
{
string path = @"C:\Users\Tan Wei Shen\Desktop\FYP\Animal";
string[] filePaths = Directory.GetFiles(path, "*.jpg");
if (counter < filePaths.Length)
{
pictureBox1.Image = Image.FromFile(filePaths[counter]);
lblFileName.Text = Path.GetFileNameWithoutExtension(filePaths[counter]);
Speak();
}
else
{
MainPage();
}
}
else if (select == 2)
{
string path = @"C:\Users\Tan Wei Shen\Desktop\FYP\Insect";
string[] filePaths = Directory.GetFiles(path, "*.jpg");
if (counter < filePaths.Length)
{
pictureBox1.Image = Image.FromFile(filePaths[counter]);
lblFileName.Text = Path.GetFileNameWithoutExtension(filePaths[counter]);
Speak();
}
else
{
MainPage();
}
}
}
}

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Nilesh Patil8y ago
Hi,

Refer this link for detail information

https://stackoverflow.com/questions/20940979/what-is-an-indexoutofrangeexception-argumentoutofrangeexception-and-how-do-i-f
Sandy8y ago
Hi Tan,

There should be some file in C:\Users\Tan Wei Shen\Desktop\FYP\Animal which is not in C:\Users\Tan Wei Shen\Desktop\FYP\Insect that contain ".jpg" extension

Thanks
Sandy
tan shen8y ago
pictureBox1.Image = Image.FromFile(filePaths[counter]); which inside the btnInsect.
It only happens when I click the btnInsect, but the code working correctly when i click the btn Animal
Sandy8y ago
Hi Tan,

Check the array size in filePaths and value in 'counter' variable.

Value in counter variable is more than the filepath array size.If the issue is not resolved with this than kindly share the line number in which the system is thrwoing an error.

Thanks

Sandy