I got error in c# code can any one solve this please ?[Answered] RSS

• • Reply
  gaddamraju4u

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  I got error in c# code can any one solve this please ?

  May 24, 2014 02:48 AM|gaddamraju4u|LINK

  int total=0;
  int total2;
  if (lblCounter.Text == null)
  {
      lblCounter2.Text = total.ToString();
  }
  else
  {
     total2 = Int32.Parse(lblCounter2.Text);
      total2++;
      lblCounter2.Text = total2.ToString();
  }

  Exception Details: System.FormatException: Input string was not in a correct format. 

  Line 26: else
  Line 27: {
  Line 28:    total2 = Int32.Parse(lblCounter2.Text);
  Line 29:     total2++;
  Line 30:     lblCounter2.Text = total2.ToString();

• • Reply
  oned_gk

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  Re: I got error in c# code can any one solve this please ?

  May 24, 2014 03:05 AM|oned_gk|LINK

  Try this

  int total=0;
  int total2;
  if (lblCounter.Text.Trim() == string.Empty)
  {
      lblCounter2.Text = total.ToString();
  }
  else
  {
     total2 = Int32.Parse(lblCounter2.Text);
      total2++;
      lblCounter2.Text = total2.ToString();
  }

  Programming to simplify, don't look for difficult way
  Suwandi - Non Graduate Programmer
• • Reply
  smirnov

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  Re: I got error in c# code can any one solve this please ?

  May 24, 2014 03:07 AM|smirnov|LINK

  The error says it all - the value of lblCounter2.Text is not int32.

  To avoid an error you can do like this

  bool ok = int.TryParse(lblCounter2.Text, out total2);
  if (!ok)
  {
      // String is not a number.
  }  

• • Reply
  mindominisci...

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  171 Posts

  Re: I got error in c# code can any one solve this please ?

  May 27, 2014 06:44 AM|mindominiscient|LINK

  I think to tackle this problem in a best manner is to use JavaScript validations and also Server side validations.

• • Reply
  donijose

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  Re: I got error in c# code can any one solve this please ?

  May 27, 2014 07:38 AM|donijose|LINK

  This happens because the value of lblCounter2.Text can be empty string. Try this

  int total=0;
  int total2;
  if (lblCounter.Text == null)
  {
      lblCounter2.Text = total.ToString();
  }
  else
  {
     total2 = !String.IsNullOrWhiteSpace(lblCounter2.Text) ? Int32.Parse(lblCounter2.Text) : 0;
      total2++;
      lblCounter2.Text = total2.ToString();
  }

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  smirnov

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  Re: I got error in c# code can any one solve this please ?

  May 27, 2014 09:40 AM|smirnov|LINK

  donijose

  lblCounter2.Text can be empty string. Try this

  ...
  if (lblCounter.Text == null)

  FYI,

  1) an empty string is not the same as null
  2) lblCounter.Text should never be null unless the control was added dynamically  

• • Reply
  Arslan14

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  120 Posts

  Re: I got error in c# code can any one solve this please ?

  May 27, 2014 11:34 AM|Arslan14|LINK

  gaddamraju4u

  int total=0;
  int total2;
  if (lblCounter.Text == null)
  {
      lblCounter2.Text = total.ToString();
  }
  else
  {
     total2 = Int32.Parse(lblCounter2.Text);
      total2++;
      lblCounter2.Text = total2.ToString();
  }

  i think you should use

  total2 = Convert.ToInt32(lblCounter2.Text);