How to get the value from a textbox

Question

I am making a BMI calculator. I want to get the value of the text box so I can change the colour of the text in the textbox accordingly how do I do that?

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pratik

Answer 1

Typically, you can just use TextBox.Text, then convert to a number if required (ie: int.TryParse).

However, a better option is often to just data bind the TextBox.Text directly to the value, and use the value...

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Reed Copsey, Jr. - http://reedcopsey.com - If a post answers your question, please click Mark As Answer on that post. If you find a post helpful, please click Vote as Helpful.

Answer 2

How do I data bind it and how do i compare the value

In the sense

if(textbox1.text.value >20)// But there is no method as value

{

textbox1.forecolor = color.red

}

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pratik

Answer 3

If you want to use it that way, you'd do:

int value;
if (int.TryParse(textBox1.Text, out value))
{
   if (value > 20)
       textBox1.ForeColor = Color.Red;
}
else
{
  // user entered something that's not a number
}

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Reed Copsey, Jr. - http://reedcopsey.com - If a post answers your question, please click Mark As Answer on that post. If you find a post helpful, please click Vote as Helpful.