String comparison in VS2003

Hi sibin -

Can you please explain your problem clearly..
if you want to just check that if the string is empty return false then use like this:
if(txt=="")
return false;

if you have any other query the please explain it clearly means what is your input and what you want as a output..

Thanks & Regards
Lakhan Pal Garg

http://lakhangarg.blogspot.com

Sibin.rhythm, if this helps please login to Mark As Answer. | Alert Moderator

Thank you for ur reply

I have one text box. If anybody enters value like <,>,create,drop etc,The error message will come.

I need To avoid that.Also My Visual studio software does not support Valiation controls like regular expression validtor,required field validatr etc,So I cant use regular expression validatior to avoid this sql injection

B'coz of this reason I decide to use string comparison to check the textbox value charrecter by charrecter . so I can find out the illegal symbols which entered in the text box.

Then I can display the error message...

Can u help me???

Sibin.rhythm, if this helps please login to Mark As Answer. | Alert Moderator

Hi Sibin-

i think i already send this javascript code to check invalid charcters:

function chkSpecialChars(input)

{

var iChars = "<>";

for (var i = 0; i < input.length; i++)

{

if (iChars.indexOf(input.charAt(i)) != -1)

{

alert (

"You are using special characters. \nThese are not allowed.\n Please remove them and try again."); return false;

}

}

return true;

}

use this for the above mentioned problem.

Sibin.rhythm, if this helps please login to Mark As Answer. | Alert Moderator

Thank you...Tank you once again

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