troubleshooting Question

How do I check to see the value (if its empty or not) in TextBox1 from my class file (ASP.Net, C#)

Avatar of bmanmike39
bmanmike39 asked on
.NET ProgrammingC#ASP.NET
4 Comments1 Solution505 ViewsLast Modified:
I would like to make a static class that check to see if  a checkbox has something in it or not. And if  it does, I want to execute my code.  I just don’t know how to check the textbox

public class costCL
{
    
    public double rs;
   
    public void Add(double c, double s, double st)
	{
        if(don't know what goes here)
            double ftax = 5.00; 
            
            rs = Math.Round(c + s + st + ftax, 2);
    }
         
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