C# C# Parsing [Intermediate Level Tutorial]

[C#] C# Parsing [Intermediate Level Tutorial] - Printable Version

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C# Parsing [Intermediate Level Tutorial] - Pulser - Oct 20, 2010

C# Parsing

What Is It:
In C# "Parsing" is basically analyzing something and attempting to convert it.

Getting Started:
Start by creating a new textBox and Button. What we want to accomplish here is popping up a MessageBox that shows the value of your integer. However, we cannot just show the integer value, we must parse it!

First, create a new integer and set it equal to your textbox's text.

Code 
int test = textBox1.Text;

Now, this will not work! This is because we are attempting to set a number variable equal to text. So, in order for this to work, we need to parse it.

Code 
int test = int.Parse(textBox1.Text);

int.Parse(textBox1.Text)
All this does is parse the text inside of the textbox into an integer value, pretty easy, huh!

Showing The Number

Code 
MessageBox.Show(test.ToString());

This was explained in my previous tutorial.

Spoiler (Click to View)

Code:

Code 
private void button1_Click(object sender, EventArgs e)

        {

            int test = int.Parse(textBox1.Text);

            MessageBox.Show(test.ToString());

        }

* - ImSpare - Oct 20, 2010

A more advanced version would be

Convert.ToInt32(textbox1.Text);

* - Pulser - Oct 20, 2010

(Oct 20, 2010 07:42 PM)drewsun Wrote: A more advanced version would be

Convert.ToInt32(textbox1.Text);

Thanks for the feedback! As I'm sure you can tell, I am catering to beginners.

* - xSilent - Oct 20, 2010

(Oct 20, 2010 07:42 PM)drewsun Wrote: A more advanced version would be

Convert.ToInt32(textbox1.Text);

Code 
int ToInt(object obj)

{

return Convert.ToInt32(obj);

}

Code 
int i = ToInt(textBox1.text)

Easier to keep track if your dealing with alot of code.

* - Pulser - Oct 20, 2010

(Oct 20, 2010 08:02 PM)xSilent Wrote:
Code
int ToInt(object obj) { return Convert.ToInt32(obj); }

Code
int i = ToInt(textBox1.text)

Easier to keep track if your dealing with alot of code.

Thanks a lot! Hopefully the people learning will take a look at all of our snippets.