Tuesday, May 5, 2009

Difference between "+" and "&" operators in vb

What is the difference between "+" and "&" operators????
i am adding two numbers but it gets concatenatd instead of addition.
any help???????
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1 comment:

  1. JavedMay 5, 2009 at 8:03 AM

    in vb anything is treated as string so by default "+" concates two strings. if the operands on both sides are numeric then its ok but if the data is of any other type then it just concates them so to use it as an "addition" operator then you must use the val() function.
    also the "&" operator is used for concatenation only.
    example.

    suppose we have three textboxes named as
    TxtFirst TxtSecond TxtThird and a command button.
    now on click event of command button code as

    txtThird.Text = TxtFirst.Text + TxtSecond.Text

    this will concated the string in first and second text boxes and shows in third textbox but if you code as
    txtThird.Text = val(TxtFirst.Text) + val(TxtSecond.Text)
    then you will get the addition result in ThirdTextbox.

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