Help on String and Integer

[werks]

Hi there programmers.

How can you tell if the input value in a textbox is an Integer or String is there any code to know this?

[daniel aristidou]

Hi there programmers.

How can you tell if the input value in a textbox is an Integer or String is there any code to know this?

 If isnumeric(textbox.text) = True then
Msgbox("I am a number")
Else
msgbox("I'M not anumber ,im mostlikely a string")
End if
 

This help?

[werks]

 If isnumeric(textbox.text) = True then
Msgbox("I am a number")
Else
msgbox("I'M not anumber ,im mostlikely a string")
End if
 

This help?

Thank you! Thank you! Thank You! very much. You saved my day.


Better Than Yesterday ^^

[Killer42]

I'd just like to point out that by definition, the value in a textbox is always a string. What you're testing is whether it's possible for VB to convert that string to a number. (Note, IsNumeric() function won't care whether it's an integer - it could be too large for instance).

Oh, and a quick tip, daniel. If you're testing a logical value, there's no point in comparing it to True. It already is True or False. So in this example, the code
If IsNumeric(textbox.Text) = True Then
works exactly the same as
If IsNumeric(textbox.Text) Then.
Except that depending on how smart the compiler is, the shorter version might execute ever so slightyl faster.

[shuvo2k6]

Hi there programmers.

How can you tell if the input value in a textbox is an Integer or String is there any code to know this?

TextBox's Text Property must be String, if u want to check Integer, there is no fucntion for that for ur need u must take some other way.

[Killer42]

TextBox's Text Property must be String, if u want to check Integer, there is no fucntion for that for ur need u must take some other way.

daniel aristidou already provided a solution which "werks" :) though it may have problems with large numbers or decimals.

[lotus18]

Oh, and a quick tip, daniel. If you're testing a logical value, there's no point in comparing it to True. It already is True or False. So in this example, the code
If IsNumeric(textbox.Text) = True Then
works exactly the same as
If IsNumeric(textbox.Text) Then.
Except that depending on how smart the compiler is, the shorter version might execute ever so slightyl faster.

I didn't know this huh? I learned something new for this day. haha : )

Rey Sean

[daniel aristidou]

Hey...killer..you have a valid point... i already knew that...i just always put = True in when trying to explain or if there is more than one statement...so as not to get confused.....
Good point though....