How to Find Max/Min value in a ListBox

Behrouz Hosseini

Hi Guys,
I am new at c sharp and I would like to know how I can find a min and max value in a listBox.
lets say I have a listbox which gets the elements from a text box and by a btn click events like this:

int intItems = (int)Convert.ToInt32(txtInput.Text);
listBox1.Items.Add(intItems);

I know how to get count and sum and average of these elements

could you please let me know how I can find these values(Max, Min)?
Regards

6 Replies

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

Marimuthu Arigovindasamy16y ago
Accepted answer
Can u try the below one.

int minValue = 0;
int maxValue = 0;
if (listBox1.Items.Count > 0)
{
minValue = Convert.ToInt32(listBox1.Items[0]);
maxValue = Convert.ToInt32(listBox1.Items[0]);
}
for (int i = 0; i < listBox1.Items.Count; i++)
{
if (minValue > Convert.ToInt32(listBox1.Items[i]))
{
minValue = Convert.ToInt32(listBox1.Items[i]);
}
if (maxValue < Convert.ToInt32(listBox1.Items[i]))
{
maxValue = Convert.ToInt32(listBox1.Items[i]);
}
}
+1
meng14y ago
thank you for QUICK reply, it works!
0
Vulpes14y ago
Try:

if (listBox1.Items.Count == 0)
{
MessageBox.Show("There are no items in the listbox");
return;
}

decimal sum = 0;

foreach (object item in listBox1.Items)
{
sum += Convert.ToDecimal(item.ToString());
}

int count = listBox1.Items.Count;
decimal average = sum / count;

string message = String.Format("There are {0} items, having a sum of {1} and an average of {2}", count, sum, average);
MessageBox.Show(message);
0
meng14y ago
Hi, could to please advise how to get the count and sum and average of these elements from the listbox control?
thanks
0
Marimuthu Arigovindasamy16y ago
Pls mark as 'Accepted answer'
0
Behrouz Hosseini16y ago
Thanks Marimuthu,
It is working now I really appreciate.
0