Question

I have 10 defined textboxes with strings.

I have to check all if they are not empty while clicking ok button

whats the cleanest way to check them all and when function is at end. each checkbox which was empty to give this a specific CSSclass. perhaps. ClassError. ( which highlights red)

I’m happy for answers.

Answer 1

Using javascript or C#?

Javascript I will create an array of textbox and loop through it.

C# just go FindControl within a Panel or the Container of the text box and go something like this

foreach(Control C in ContainerID.Controls)
{
    if ( C is TextBox )
    {
      if ( String.IsNullOrEmpty((C as TextBox).Text))
      {
          // Do things this way
      }        
    }    
}