ASP.NET

4-Jun-07 20:00

Hi all,
Is there any specific property or control in ASP.NET 2.0 using which i can enter only numerical characters in a textbox??
How do i do this???
If no, please semd me the piece of code using which i can do this validation.

Thanks
Ramesh

Raghvendra Kumar Roy4-Jun-07 20:09

4-Jun-07 20:09

you can use regular expression validation like this:
""asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="Numeric Value" ControlToValidate="TextBox1" ValidationExpression="[0-9]">Raghvendra Kumar Roy

rameshbhojan4-Jun-07 21:33

4-Jun-07 21:33

Hi Raghav,
Thanks!
n wat do i do if i want to validate a filed called year which should accept only 4 digit year like 2007 and not 07.

also i want a textbox which should not accept special characters.

Raghvendra Kumar Roy4-Jun-07 22:21

4-Jun-07 22:21

if you want to validate a filed called year which should accept only 4 digit year like 2007 and not 07.
try this:
After validationexpression you can define numbers Just add this for your problem

ValidationExpression="[0-9]{4}"

if you want a textbox which should not accept special characters.
it will accept only uppercase characters,lowercase characters and numeric characters.

ValidationExpression="[A-Z,a-z][0-9]"

Thanks

Raghvendra Kumar Roy

rameshbhojan5-Jun-07 0:19

5-Jun-07 0:19

hey raghav......
this accepts only a single digit number!!!!
i want the field such tat it should accept number..... any number of any length.....
but this validation coontrol accepts only a single digit no.
not any other number also

please help asap.

thanks
Ramesh

Raghvendra Kumar Roy5-Jun-07 18:43

5-Jun-07 18:43

Hey Ramesh

Try this:

ValidationExpression="[0-9]*$"

Raghvendra Kumar Roy

rameshbhojan5-Jun-07 22:11

5-Jun-07 22:11

Hey Raghav,

I have been able to do it by simply adding a star

ValidationExpression="[0-9]*"

For wat is tat additional $ ?
Please let me know

Raghvendra Kumar Roy6-Jun-07 18:46

6-Jun-07 18:46

hi Ramesh

$ means stop looking at this position.

Raghvendra Kumar Roy

Sathesh Sakthivel4-Jun-07 20:09

Sathesh Sakthivel

4-Jun-07 20:09

This script is used for u accept only numbers.

<br />
<script type="javascript"><br />
function isinteg(obj){<br />
if (isNaN(obj.value)){<br />
obj.value="";<br />
return false;<br />
}<br />
return true;<br />
}<br />
</script><br />
<input type="text" name="field" onkeyup="isinteg(this);"><br />

Regards,

Satips. Rose | [Rose]

ritu43214-Jun-07 20:09

ritu4321

4-Jun-07 20:09

//here formElement is the control and myString is the string typed into it .
//By using this javascripting code the characters and others will not //get //typed only numbers will type.

function removeInvalidChars(formElement, myString)
{
var intPeriod = 0
for (var i = 0; i < myString.length; i++)
{
A_char = myString.charCodeAt(i)
//We are validating for numbers.
if (A_char > 47 && A_char < 58)
{
// It's a number
continue;
}
else
{
myString = myString.substring(0,i)
}
}
formElement.value = myString;
}

Puneet Sri4-Jun-07 20:55

Puneet Sri

4-Jun-07 20:55

function intOnly(obj)
{
if(obj.value!=parseInt(obj.value))
{
alert("Please Enter Whole Number only");
obj.value="";
}

}

i hope this will help you.

Puneet Srivastava