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What is better solution for validate form TextBoxs value?

Anonymous User 1677 23 Sep 2013

In my system has many forms for insert and edit database registers

But before to save date in database, I need validate any camp, validate it values is empty or not, validate TextBox.Text lenght, etc...

I validated they with many many if's

if (tbName.Text.Equals("")) { }

if (tbPass.Password.Equals("")) { }

if (tbEmail.Text.Equals("")) { }

if (tbTelephone.Text.Equals("")) { }

if (tbNome.Text.Length < 4) { }

if (tbPass.Password.Length < 5) { }

if (!tbEmail.Text.Contains('@')) { }

but it is very no efficiency and I don't know any other solution for this

What solution is usual for this?

Anonymous User

Other

I am a content writter !

1 Answers

Sumit Kesarwani 23 Sep 2013

Hi Ankita,

This is by hand so it will have some syntax errors

You will probably also want to implement iNotifyPropertyChanged

Then Validation

public Class ValidatedText 
{
    private string vText;
    private bool valid = true;
    Int23 maxLen = 0;
    public bool Valid 
    {   
       get { return valid; }
       set 
       {  
          if (valid == value) return;
          valid = value;
       }
    } 
    public string Vtext 
    {  
       get { return vText; }
       set 
       {  
          if (vText == value) return;
          if (value.Len < 0) 
          {
              Valid = false;
             
            return;
          }
          // do additional validation here
          vText = value;
       } 
   }
   public ValidatedText (string VText; Int32 MaxLen)
   {   vText = Vtext; maxLen - MaxLen;   }
}

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