Number-Conversion in Textbox-Control

[ToniMontana]

Hi all,

 

I think the most used WinForms-control for input of

a number is the normal "textBox", right?

 

So the number I have put in is a string internally

which I can get if I use the .Text-property.

 

But how can I convert this to a real number like int or double?

 

To increase the number of textBox "mytxtBox" I have

to write a code like this (which works correctly):

 

if(this.mytxtBox.Text == "") this.mytxtBox.Text = "0";

currentValue = System.Convert.ToInt32(this.mytxtBox.Text);

currentValue += 3;

// to write the increased number back into the textBox:

this.mytxtBox.Text = currentValue.ToString();

 

 

My question: Am I on the right way or is there a shorter

better way to input a number in a GUI?

Edited March 19, 2004 by ToniMontana

[Cags]

I'd say your on the right lines, another method for turning string's into int's would be to use this line..

 

int.Parse(textbox.Text);

[Robby]

Yeah you're on the right track but you may want to move your first line of code into the Change or KeyPress event (if(this.mytxtBox.Text == "") this.mytxtBox.Text = "0";) whichever suits you best.