[c#] Convert textbox text to integer

I need to convert the text in the textbox of my xaml code to an integer value in C#. I am using .NET 4.0 and Visual Studio 2010. Is there a way to do it in xaml tags itself or do i need to write a converter in C sharp. I tried the following but is not working:

Convert.ToInt32(this.txtboxname.Text)

Any help is much appreciated. Thanks.

If your SQL database allows Null values for that field try using int? value like that :

if (this.txtboxname.Text == "" || this.txtboxname.text == null)
     value = null;
else
     value = Convert.ToInt32(this.txtboxname.Text);

Take care that Convert.ToInt32 of a null value returns 0 !

Convert.ToInt32(null) returns 0

int num = int.Parse(textBox.Text);

try this. It worked for me

Example:

int x = Convert.ToInt32(this.txtboxname.Text) + 1 //You dont need the "this"
txtboxname.Text = x.ToString();

The x.ToString() makes the integer into string to show that in the text box.

Result:

1. You put number in the text box.
2. You click on the button or something running the function.
3. You see your number just bigger than your number by one in your text box.

:)

You don't need to write a converter, just do this in your handler/codebehind:

int i = Convert.ToInt32(txtMyTextBox.Text);

OR

int i = int.Parse(txtMyTextBox.Text);

The Text property of your textbox is a String type, so you have to perform the conversion in the code.