C# Define Variable from Text Box in Windows Forms

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Well, I'm kinda new to C# programming, and I ran into this problem and I can't figure out how to define a variable such as an int, double, from user input in a textbox.
Help Please..
Net Framework 4.0

Posted 9-Aug-11 5:51am

JustinTS.

Updated 9-Aug-11 6:00am

v2

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Chris Maunder 9-Aug-11 12:15pm

We can't answer if you haven't told us what you've tried and where your error is. Closing the question.

Chris Maunder 9-Aug-11 12:15pm

We can't answer if you haven't told us what you've tried and where your error is. Closing the question.

Chris Maunder 9-Aug-11 12:15pm

We can't answer if you haven't told us what you've tried and where your error is. Closing the question.

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#realJSOP · Answer 1 · 2011-08-09T06:11:00

A TextBox contains only strings. You have to cast or parse the Text property if you want a numeric value. I prefer parsing:

C#

int x;
if (int32.TryParse(textBox1.Text, out x))
{
    // you have a valid integer
    // and you can do what you want with x
}
else
{
    // the text contains invalid characters
    // put up an error message
 
}

Soheil Hasankhani · Answer 2 · 2011-08-09T06:34:00

Solution 2

You can use this:

C#

public int TextBoxValue
        {
            get
            {
                return int.Parse(TextBox.Text);
            }
            set
            {
                TextBox.Text = value.ToString();
            }
        }

Posted 9-Aug-11 6:34am

Soheil Hasankhani

C# Define Variable from Text Box in Windows Forms

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