padmapraveen_vasili Posted May 8, 2006 Share Posted May 8, 2006 hi friends..i have to validate the text box content.the text field must contain "min and max 0f 5 characters"it can take alphanumeric values alsoif it takes characters, only the first two should be allowedThe first two may be number or characterThe last 3 must be numericIe the field can take 12345 or AB123please can any one help me out the issue as soon as possiable.... Link to comment Share on other sites More sharing options...
scott100 Posted May 8, 2006 Share Posted May 8, 2006 JavaScript right??? not Java Maybe this: <head><script>function check(val){ if (val.length<5)alert("Too short"); else { var tomatch=/[A-Za-z0-9]\w{1,}[0-9]\w{2,}/ if(tomatch.test(val)) { alert("Expression is ok") } else { alert("Expression is incorrect") } } }</script></head><body><input type="text" maxlength="5" id="box" /><input type="button" value="button" onclick="check(box.value)" /><body> Blue's the regular expression expert Link to comment Share on other sites More sharing options...
padmapraveen_vasili Posted May 8, 2006 Author Share Posted May 8, 2006 the code is not working for this combination of input 123AB..it is accepting the above inputplease do consider this one..valid inputs are 12345, AB123,A1234,1B123the last 3 digits must be numeric...and it should not allow any special charaters. Link to comment Share on other sites More sharing options...
scott100 Posted May 8, 2006 Share Posted May 8, 2006 ok try this one <head><script>function check(val){ if (val.length<5)alert("Too short"); else { var tomatch=/[A-Za-z0-9]\w{1,}[0-9]\d{2,}/ if(tomatch.test(val)) { alert("Expression is ok") } else { alert("Expression is incorrect") } } }</script></head><body><input type="text" maxlength="5" id="box" /><input type="button" value="button" onclick="check(box.value)" /><body> Link to comment Share on other sites More sharing options...
padmapraveen_vasili Posted May 8, 2006 Author Share Posted May 8, 2006 thnk you dude....its now working ...thnks a lot for you and a special thnks for the forum too..have nice a time...learn and enjoy Link to comment Share on other sites More sharing options...
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