if statement (textbox equals 0)

[pinkpoppy]

I have an if statement that says this:

if abc.text is greater than or equal to xyz.text, then lblerrormessage.text and lblabc.text shows error messages, else lblerrormessage and lblabc shows nothing.

but sometimes abc.text and xyz.text will be 0 and thats fine. How do I write that?

            if (Convert.ToDouble(abc.Text) >= Convert.ToDouble(xyz.Text))
            {
                lblerrorMessage.Text = "Please correct the following:";
                lblabc.Text = "Must be less than.";
                return;
            }
            else
            {
                lblerrorMessage.Text = "";
                lblabc.Text = "";
            }

Any help is appreciated! Thanks.

 

[jbenson001]

Have you tried using compare validators and required field validators?

 

[jbenson001]

You could try something like this. However, I suggest using TryParse instead to avoid possible errors.

var abc = Convert.ToDouble(abc.Text);
var zyx = Convert.ToDouble(xyz.Text)
if (abc >= xyz) 
{  
   if( abc != 0 && xyz !=0)
   { 
      lblerrorMessage.Text = "Please correct the following:"; 
      lblabc.Text = "Must be less than."; 
      return; 
   }
} 
else { 
   lblerrorMessage.Text = ""; lblabc.Text = ""; 
}