Add Prefix for each Added item in listbox

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i have two text box one have value to increment and other one gives the amount to increment with and increment value is showen on listbox
i want when value is inserted to listbox each value must have "ERT" letters with it.

i tried following but it is effecting my incrementing of series

decimal j = Convert.ToDecimal(textBoxlist.Text);

Int64 k = Convert.ToInt64(textBoxQuantity.Text);

if (textBoxlist.Text.Length >15)
{

for (int i = 0; i < k; i++)
{
SerialListBox.Items.Add("ERT"+j + i + 1);
}

simply i want to add prefix of ERT to each list box item.

Posted 4-Mar-13 19:40pm

ByakuyaKuchiki

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Tbone1983 5-Mar-13 2:25am

I don't understand your question. Is it possible to add some additional information on what you are searching for?

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Simon_Whale · Answer 1 · 2013-03-04T22:20:00

It is taking the "ERT" + j + i + 1 as a string value hence you end up with

ERT1001 when J = 10 and I = 0

to fix it change this line

SerialListBox.Items.Add("ERT"+j + i + 1);

to

SerialListBox.Items.Add("ERT"+j + (i + 1));

If I have missed your problem completley please let me know by explaining it further.