Textbox exercise RSS

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  Kalle_114

  Member

  15 Points

  12 Posts

  Textbox exercise

  Feb 22, 2012 12:19 PM|LINK

  hello

  Im going to do this.

  Has the name entered in the name TextBox at least one
  char?.
  If yes, return true. The out parameter will have a valid
  value returning to the caller.
  If no
  show a message box with a friendly error message
  Set the focus to the textbox
  return false

  This is what i have

  if (txtName.Text.Length > 0)
              {
              }
             else
              {
             MessageBox.Show("Enter Letters Only", "Invalid Character", MessageBoxButtons.OK, MessageBoxIcon.Error);
              }
  
  i have the problem whit the true false return can

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  kedarrkulkar...

  All-Star

  34013 Points

  5468 Posts

  Re: Textbox exercise

  Feb 22, 2012 12:51 PM|LINK

  from the code u posted, i assume u r referring to c# winform app

  then, u can try using ref parameter

  define function like this

      public bool FunctionName(ref string strName)
      {
              if(txtName.Text.Length > 0)
              {
                  strName = txtName.Text;
                  return true;
              }
             else
              {
                  MessageBox.Show("Enter Letters Only", "Invalid Character", MessageBoxButtons.OK, MessageBoxIcon.Error);
                  txtName.Focus();
                  return true;
              }
      } 

  then, call the function like this

  string strNameEntered;
          bool result=FunctionName(ref strNameEntered);

  first define a variable and pass it as ref parameter to function... and function itself is having retrun type as bool

  so, varialbe name result will give u whether returned true or false and using strNameEntered after function call willl give u textbox value if textbox was not empty

  hope this helps...

  hope this helps...

  Cheers!
  KK
  
  Please mark as Answer if post helps in resolving your issue
  My Site
  • Marked as answer by Kalle_114 on Feb 22, 2012 01:06 PM
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  Kalle_114

  Member

  15 Points

  12 Posts

  Re: Textbox exercise

  Feb 22, 2012 01:01 PM|LINK

  thx:D

  i have private bool ReadAndValidateName(out string name) thx alot for it.

  string strNameEntered;
          bool result=FunctionName(ref strNameEntered);
  going to the textbox? im new to winform app

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  kedarrkulkar...

  All-Star

  34013 Points

  5468 Posts

  Re: Textbox exercise

  Feb 22, 2012 01:05 PM|LINK

  Kalle_114

  thx:D

  i have private bool ReadAndValidateName(out string name) thx alot for it.

  string strNameEntered;
          bool result=FunctionName(ref strNameEntered);
  going to the textbox? im new to winform app

  did my answer helped? or you are asking for something else/extra

  please mark as answer on the post which helps you so that visitors can understand you have been helped and how

  Cheers!
  KK
  
  Please mark as Answer if post helps in resolving your issue
  My Site
• • Reply
  

  Kalle_114

  Member

  15 Points

  12 Posts

  Re: Textbox exercise

  Feb 22, 2012 01:07 PM|LINK

  yes thx for the help