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Basic • For Loop • Windows Form

C# Get the Sum of the Items in a Listbox

7 years ago

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by Marc

In this tutorial, we will getting sum of all numbers in the listbox.

First, We’ll design the form.

Source Code: (Button1_Click)


private void button1_Click(object sender, EventArgs e)
        {
            decimal sum = 0;
            for(int i=0;i<listBox1.Items.Count;i++)
            {
                sum += Convert.ToDecimal(listBox1.Items[i]);
            }
            label1.Text = "Sum all the Numbers : " + sum;
        }

private void button1_Click(object sender, EventArgs e)

{

decimal sum = 0;

for(int i=0;i<listBox1.Items.Count;i++)

{

sum += Convert.ToDecimal(listBox1.Items[i]);

}

label1.Text = "Sum all the Numbers : " + sum;

}

Output:

C# Get the Sum of the Items in a Listbox

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